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CYW20706
Bluetooth SoC for Embedded Wireless
Devices
General Description
The Cypress CYW20706 is a single-chip Bluetooth 4.2-compliant, stand-alone baseband processor with an integrated 2.4 GHz
transceiver. Manufactured using the industry's most advanced 40 nm CMOS low-power process, the CYW20706 employs the highest
level of integration to eliminate all critical external components, thereby minimizing the device's footprint and the costs associated with
implementing Bluetooth solutions.
The CYW20706 is the optimal solution for embedded and IoT applications. Built-in firmware adheres to the Bluetooth Low Energy
(BLE) profile.
Cypress Part Numbering Scheme
Cypress is converting the acquired IoT part numbers from Cypress to the Cypress part numbering scheme. Due to this conversion,
there is no change in form, fit, or function as a result of offering the device with Cypress part number marking. The table provides
Cypress ordering part number that matches an existing IoT part number.
Table 1. Mapping Table for Part Number between Broadcom and Cypress
Broadcom Part Number
Cypress Part Number
BCM20706
CYW20706
BCM20706UA2KFFB4G
CYW20706UA2KFFB4G
Features
■
Complies with Bluetooth Core Specification version 4.2
including BR/EDR/BLE
■
Broadcom proprietary LE data rate up to 2 Mbps
■
BLE HID profile version 1.00 compliant
■
Bluetooth Device ID profile version 1.3 compliant
■
Supports Generic Access Profile (GAP)
■
Supports Adaptive Frequency Hopping (AFH)
■
Excellent receiver sensitivity
■
Programmable output power control
■
Integrated ARM Cortex-M3 microprocessor core
■
On-chip power-on reset (POR)
■
Support for EEPROM and serial flash interfaces
■
Integrated low dropout regulators (LDO)
■
On-chip software controlled PMU
■
PCM/I2S Interface
■
Infrared modulator
■
On-chip support for SPI (master/slave modes)
■
I2C interface (compatible with NXP I2C slaves)
■
Package types:
❐
❐
49-pin FBGA package (4.5 mm x 4.0 mm) Bluetooth 4.2compliant
RoHS compliant
Applications
■
Home automation
■
Heart rate monitors
■
Point-of-sale input devices
■
Proximity sensors
■
Blood pressure monitors
■
Thermometers
■
“Find me” devices
■
Wearables
Cypress Semiconductor Corporation
Document No. 002-19479 Rev. *B
•
198 Champion Court
•
San Jose, CA 95134-1709
•
408-943-2600
Revised March 21, 2018
CYW20706
Figure 1. Functional Block Diagram
CYW20706
Cortex‐M3
SWD
DMA
Scan JTAG
Address
Decoder
Bus Arb
Trap & Patch
Flash I/F
32‐bit AHB
AHB2EBI
External
Bus I/F
AHB2APB
WD Timer
Remap &
Pause
GPIO+Aux
SW
Timers
AHB2MEM
AHB2MEM
PMU Control
ROM
RAM
Interrupt
Controller
JTAG Master
32‐bit APB
LCU
Digital
Modulator
Calibration &
Control
Bluetooth Radio
RF
Digital Demod
Bit Sync
Low Power
Scan
Blue RF Registers
PMU
LPO
Buffer
APU
SPI
PCM/I2S
HCI UART
Digital I/O
PERIPHERAL
UART
Blue RF I/F
I2C_Master
BT Clk/
Hopper
PTU
Rx/Tx
Buffer
I/O
Port Control
ADC
POR
Document Number: 002-19479 Rev. *B
Page 2 of 47
CYW20706
Contents
1. Functional Description ..................................... 4
1.1
Bluetooth Baseband Core ................................... 4
1.1.1 Link Control Layer ................................... 5
1.1.2 Test Mode Support .................................. 5
1.1.3 Frequency Hopping Generator ................ 5
1.2
Microprocessor Unit ............................................ 6
1.2.1 NVRAM Configuration Data and Storage 6
1.2.2 One-Time Programmable Memory .......... 6
1.2.3 External Reset ......................................... 7
1.3
Integrated Radio Transceiver .............................. 8
1.3.1 Transmitter .............................................. 8
1.3.2 Receiver .................................................. 8
1.3.3 Local Oscillator Generation ..................... 8
1.3.4 Calibration ............................................... 9
1.3.5 Internal LDO ............................................ 9
1.14 Power Management Unit ....................................17
1.14.1 RF Power Management ..........................17
1.14.2 Host Controller Power Management ......17
1.14.3 BBC Power Management .......................17
2. Pin Assignments............................................. 18
2.1
Pin Descriptions .................................................18
2.1.1 49-Pin FBGA List ....................................18
2.2
Ball Map .............................................................22
2.2.1 49-Pin FBGA Ball Map ...........................22
3. Specifications ................................................. 23
3.1
Electrical Characteristics ....................................23
3.1.1 Digital I/O Characteristics .......................26
3.1.2 Current Consumption .............................27
Collaborative Coexistence .................................. 9
3.2
RF Specifications ...............................................28
1.5
Global Coexistence Interface .............................. 9
1.5.1 SECI I/O .................................................. 9
3.3
Timing and AC Characteristics ...........................31
3.3.1 UART Timing ..........................................31
1.6
Peripheral Transport Unit .................................. 10
1.6.1 I2C Communications Interface .............. 10
3.3.2 SPI Timing ..............................................32
1.6.2 HCI UART Interface ............................... 10
3.3.4 PCM Interface Timing .............................35
PCM Interface ................................................... 12
1.7.1 Slot Mapping .......................................... 12
1.7.2 Frame Synchronization .......................... 12
1.7.3 Data Formatting ..................................... 12
3.3.5 I2S Timing ...............................................38
1.4
1.7
1.8
Clock Frequencies ............................................ 13
1.8.1 Crystal Oscillator ................................... 13
1.9
GPIO Ports ........................................................ 14
1.9.1 49-Pin FBGA Package .......................... 14
1.10 PWM ................................................................. 15
1.11 Triac Control ...................................................... 16
3.3.3 BSC Interface Timing .............................34
4. Mechanical Information.................................. 41
4.1
Package Diagrams .............................................41
4.2
Tape Reel and Packaging Specifications ...........43
5. Ordering Information...................................... 44
6. Additional information ................................... 44
6.1
Acronyms and Abbreviations .............................44
6.2
IoT Resources ....................................................45
1.12 Serial Peripheral Interface ................................. 16
Document History Page ................................................. 46
1.13 Infrared Modulator ............................................. 16
Sales, Solutions, and Legal Information ...................... 47
Document Number: 002-19479 Rev. *B
Page 3 of 47
CYW20706
1. Functional Description
1.1 Bluetooth Baseband Core
The Bluetooth Baseband Core (BBC) implements all of the time-critical functions required for high-performance Bluetooth operation.
The BBC manages the buffering, segmentation, and routing of data for all connections. It also buffers data that passes through it,
handles data flow control, schedules SCO/ACL and TX/RX transactions, monitors Bluetooth slot usage, optimally segments and
packages data into baseband packets, manages connection status indicators, and composes and decodes HCI packets. In addition
to these functions, it independently handles HCI event types, and HCI command types. The following transmit and receive functions
are also implemented in the BBC hardware to increase reliability and security of the TX/RX data before sending over the air:
■
Symbol timing recovery, data deframing, forward error correction (FEC), header error control (HEC), cyclic redundancy check
(CRC), data decryption, and data dewhitening in the receiver.
■
Data framing, FEC generation, HEC generation, CRC generation, key generation, data encryption, and data whitening in the
transmitter.
Table 2. Bluetooth Features
Bluetooth 1.0
Bluetooth 1.2
Bluetooth 2.0
Basic Rate
Interlaced Scans
EDR 2 Mbps and 3 Mbp
SCO
Adaptive Frequency Hopping
–
Paging and Inquiry
eSCO
–
Page and Inquiry Scan
–
–
Sniff
–
Bluetooth 2.1
–
Bluetooth 3.0
Bluetooth 4.0
Secure Simple Pairing
Unicast Connectionless Data
Bluetooth Low Energy
Enhanced Inquiry Response
Enhanced Power Control
–
Sniff Subrating
eSCO
–
Bluetooth 4.1
Bluetooth 4.2
Low Duty Cycle Advertising
Data Packet Length Extension
Dual Mode
LE Secure Connection
LE Link Layer Topology
Link Layer Privacy
Document Number: 002-19479 Rev. *B
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CYW20706
1.1.1 Link Control Layer
The link control layer is part of the Bluetooth link control functions that are implemented in dedicated logic in the link control unit (LCU).
This layer consists of the command controller that takes commands from the software, and other controllers that are activated or
configured by the command controller, to perform the link control tasks. Each task is performed in a different state in the Bluetooth
Link Controller.
■
States:
❐
❐
❐
❐
❐
❐
❐
❐
❐
Standby
Connection
Page
Page Scan
Inquiry
Inquiry Scan
Sniff
Advertising
Scanning
1.1.2 Test Mode Support
The CYW20706 fully supports Bluetooth Test mode as described in Part I:1 of the Specification of the Bluetooth System Version 3.0.
This includes the transmitter tests, normal and delayed loopback tests, and reduced hopping sequence.
In addition to the standard Bluetooth Test Mode, the CYW20706 also supports enhanced testing features to simplify RF debugging
and qualification and type-approval testing. These features include:
■
Fixed frequency carrier wave (unmodulated) transmission
❐
❐
■
Fixed frequency constant receiver mode
❐
❐
❐
■
Simplifies some type-approval measurements (Japan)
Aids in transmitter performance analysis
Receiver output directed to I/O pin
Allows for direct BER measurements using standard RF test equipment
Facilitates spurious emissions testing for receive mode
Fixed frequency constant transmission
❐
❐
8-bit fixed pattern or PRBS-9
Enables modulated signal measurements with standard RF test equipment
1.1.3 Frequency Hopping Generator
The frequency hopping sequence generator selects the correct hopping channel number based on the link controller state, Bluetooth
clock, and device address.
Document Number: 002-19479 Rev. *B
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CYW20706
1.2 Microprocessor Unit
The CYW20706 microprocessor unit runs software from the link control (LC) layer up to the host controller interface (HCI). The
microprocessor is based on the Cortex-M3 32-bit RISC processor with embedded ICE-RT debug and SWD interface units. The
microprocessor also includes 848 KB of ROM memory for program storage and boot ROM, 352 KB of RAM for data scratch-pad, and
patch RAM code.
The internal boot ROM provides flexibility during power-on reset to enable the same device to be used in various configurations. At
power-up, the lower layer protocol stack is executed from the internal ROM.
External patches can be applied to the ROM-based firmware to provide flexibility for bug fixes and features additions. These patches
can be downloaded using external NVRAM. The device can also support the integration of user applications and profiles using an
external serial flash memory.
1.2.1 NVRAM Configuration Data and Storage
NVRAM contains configuration information about the customer application, including the following:
■
Fractional-N information
■
BD_ADDR
■
UART baud rate
■
SDP service record
■
File system information used for code, code patches, or data. The CYW20706 can use SPI Flash or I2C EEPROM/serial flash for
NVRAM storage.
1.2.2 One-Time Programmable Memory
The CYW20706 includes 2 Kbytes of one-time programmable (OTP) memory allow manufacturing customization and to avoid the
need for an on-board NVRAM. If customization is not required, then the OTP does not need to be programmed. Whether the OTP is
programmed or not, to save power it is disabled when the boot process is complete. The OTP is designed to store a minimal amount
of information. Aside from OTP data, most user configuration information will be downloaded to RAM after the CYW20706 boots and
is ready for host transport communication.
The OTP contents are limited to:
■
Parameters required prior to downloading the user configuration to RAM.
■
Parameters unique to each part and each customer (for example, the Bluetooth device address.
Document Number: 002-19479 Rev. *B
Page 6 of 47
CYW20706
1.2.3 External Reset
An external active-low reset signal, RESET_N, can be used to put the CYW20706 in the reset state. An external voltage detector
reset IC with 50 ms delay is needed on the RESET_N. The RESET_N should be released only after the VDDO supply voltage level
has been stabilized for 50 ms.
Figure 2. Reset Timing
Low
threshold
50 ms
Reset
(External)
VDDO
~2.4 ms
VDDO POR
0.5 ms
VDDC
~2.4 ms
VDDC Reset (Internal)
10 LPO cycles
XTAL_RESET
8 LPO cycles
XTAL_BUF_PU
Note: The Reset signal should remain below this threshold 50 ms after VDDO is stable. Note that the representation of this signaling
diagram is extended and not drawn to scale.
Document Number: 002-19479 Rev. *B
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CYW20706
1.3 Integrated Radio Transceiver
The CYW20706 has an integrated radio transceiver that has been optimized for use in 2.4 GHz Bluetooth wireless systems. It has
been designed to provide low-power, low-cost, robust communications for applications operating in the globally available 2.4 GHz
unlicensed ISM band. The CYW20706 is fully compliant with the Bluetooth Radio Specification and enhanced data rate (EDR)
specification and meets or exceeds the requirements to provide the highest communication link quality of service.
1.3.1 Transmitter
The CYW20706 features a fully integrated zero-IF transmitter. The baseband transmit data is GFSK-modulated in the modem block
and upconverted to the 2.4 GHz ISM band in the transmitter path. The transmitter path consists of signal filtering, I/Q upconversion,
output power amplifier, and RF filtering. The transmitter path also incorporates /4-DQPSK for 2 Mbps and 8-DPSK for 3 Mbps to
support EDR. The transmitter section is compatible with the BLE specification. The transmitter PA bias can also be adjusted to provide
Bluetooth class 1 or class 2 operation.
Digital Modulator
The digital modulator performs the data modulation and filtering required for the GFSK, /4-DQPSK, and 8-DPSK signal. The fully
digital modulator minimizes any frequency drift or anomalies in the modulation characteristics of the transmitted signal and is much
more stable than direct VCO modulation schemes.
Digital Demodulator and Bit Synchronizer
The digital demodulator and bit synchronizer take the low-IF received signal and perform an optimal frequency tracking and bit
synchronization algorithm.
Power Amplifier
The fully integrated PA supports Class 1 or Class 2 output using a highly linearized, temperature-compensated design. This provides
greater flexibility in front-end matching and filtering. Due to the linear nature of the PA combined with some integrated filtering, external
filtering is required to meet the Bluetooth and regulatory harmonic and spurious requirements. For integrated mobile handset applications in which Bluetooth is integrated next to the cellular radio, external filtering can be applied to achieve near thermal noise levels
for spurious and radiated noise emissions. The transmitter features a sophisticated on-chip transmit signal strength indicator (TSSI)
block to keep the absolute output power variation within a tight range across process, voltage, and temperature.
1.3.2 Receiver
The receiver path uses a low-IF scheme to downconvert the received signal for demodulation in the digital demodulator and bit
synchronizer. The receiver path provides a high degree of linearity, an extended dynamic range, and high-order on-chip channel
filtering to ensure reliable operation in the noisy 2.4 GHz ISM band. The front-end topology, with built-in out-of-band attenuation,
enables the CYW20706 to be used in most applications with minimal off-chip filtering. For integrated handset operation, in which the
Bluetooth function is integrated close to the cellular transmitter, external filtering is required to eliminate the desensitization of the
receiver by the cellular transmit signal.
Digital Demodulator and Bit Synchronizer
The digital demodulator and bit synchronizer take the low-IF received signal and perform an optimal frequency tracking and bit
synchronization algorithm.
Receiver Signal Strength Indicator
The radio portion of the CYW20706 provides a receiver signal strength indicator (RSSI) signal to the baseband, so that the controller
can take part in a Bluetooth power-controlled link by providing a metric of its own receiver signal strength to determine whether the
transmitter should increase or decrease its output power.
1.3.3 Local Oscillator Generation
A local oscillator (LO) generation provides fast frequency hopping (1600 hops/second) across the 79 maximum available channels.
The LO generation subblock employs an architecture for high immunity to LO pulling during PA operation. The CYW20706 uses an
internal RF and IF loop filter.
Document Number: 002-19479 Rev. *B
Page 8 of 47
CYW20706
1.3.4 Calibration
The CYW20706 radio transceiver features an automated calibration scheme that is fully self-contained in the radio. No user interaction
is required during normal operation or during manufacturing to provide optimal performance. Calibration tunes the performance of all
the major blocks within the radio to within 2% of optimal conditions, including gain and phase characteristics of filters, matching
between key components, and key gain blocks. This takes into account process variation and temperature variation. Calibration occurs
transparently during normal operation during the settling time of the hops, and calibrates for temperature variations as the device
cools and heats during normal operation in its environment.
1.3.5 Internal LDO
The CYW20706 uses two LDOs - one for 1.2V and the other for 2.5V. The 1.2V LDO provides power to the baseband and radio and
the 2.5V LDO powers the PA.
Figure 3. LDO Functional Block Diagram
CYW8X072 PMU
VBAT
VDD2P5
1.2V LDO
VDDC_OUT
2.5V LDO
VDD2P5_OUT
(VDDC_LDO)
(BTLDO2P5)
AVSS_GND
1.4 Collaborative Coexistence
The CYW20706 provides extensions and collaborative coexistence with WLAN devices. Collaborative coexistence enables WLAN
and Bluetooth to operate simultaneously within close proximity of each other. The device supports industry-standard coexistence
signaling, including 802.15.2, and supports coexistence with CY WLAN and non-CY third-party WLAN solutions.
1.5 Global Coexistence Interface
The CYW20706 supports the proprietary coexistence interface Global Coexistence Interface (GCI) for coexistence between BT and
WLAN devices. GCI is a bi-directional bus between Cypress BT and Cypress WLAN.
The following key features are associated with the interface:
■
Enhanced coexistence data can be exchanged over 2-wire interface. Between two wire one is GCI_SECI_IN and another is
GCI_SECI_OUT). The pad configuration registers must be programmed to choose the digital I/O pins that serve the
GCI_SECI_IN and GCI_SECI_OUT function.
■
It supports generic UART communication between WLAN and Bluetooth devices.
■
To conserve power, it is disabled when inactive.
■
It supports automatic resynchronization upon waking from sleep mode.
■
It supports a baud rate of up to 4 Mbps.
1.5.1 SECI I/O
The CYW20706 devices have dedicated GCI_SECI_IN and GCI_SECI_OUT pins. The two pin functions can be mapped to any of
the Cypress Global Coexistence Interface (GCI) GPIO. Pin function mapping is controlled by the configuration file that is stored in onchip RAM from the host.
Document Number: 002-19479 Rev. *B
Page 9 of 47
CYW20706
1.6 Peripheral Transport Unit
1.6.1 I2C Communications Interface
The CYW20706 provides a 2-pin master I2C interface, which can be used to retrieve configuration information from an external
EEPROM or to communicate with peripherals such as trackball or touch-pad modules, and motion tracking ICs used in mouse devices.
The BSC interface is compatible with I2C slave devices. I2C does not support multimaster capability or flexible wait-state insertion by
either master or slave devices.
The following transfer clock rates are supported by I2C:
■
100 kHz
■
400 kHz
■
800 kHz (Not a standard I2C-compatible speed.)
■
1 MHz (Compatibility with high-speed I2C-compatible devices is not guaranteed.)
The following transfer types are supported by I2C:
■
Read (Up to 127 bytes can be read.)
■
Write (Up to 127 bytes can be written.)
■
Read-then-Write (Up to 127 bytes can be read and up to 127 bytes can be written.)
■
Write-then-Read (Up to 127 bytes can be written and up to 127 bytes can be read.)
Hardware controls the transfers, requiring minimal firmware setup and supervision.
The clock pin (SCL) and data pin (SDA) are both open-drain I/O pins. Pull-up resistors external to the CYW20706 are required on
both the SCL and SDA pins for proper operation.
1.6.2 HCI UART Interface
The UART physical interface is a standard, 4-wire interface (RX, TX, RTS, and CTS) with adjustable baud rates from 38400 bps to 4
Mbps. During initial boot, UART speeds may be limited to 750 kbps. The baud rate may be selected via a vendor-specific UART HCI
command. The CYW20706 has a 1040-byte receive FIFO and a 1040-byte transmit FIFO to support enhanced data rates. The
interface supports the Bluetooth UART HCI (H4) specification. The default baud rate for H4 is 115.2 kbaud.
The UART clock default setting is 24 MHz, and can be configured to run as high as 48 MHz to support up to 4 Mbps. The baud rate
of the CYW20706 UART is controlled by two values. The first is a UART clock divisor (set in the DLBR register) that divides the UART
clock by an integer multiple of 16. The second is a baud rate adjustment (set in the DHBR register) that is used to specify a number
of UART clock cycles to stuff in the first or second half of each bit time. Up to eight UART cycles can be inserted into the first half of
each bit time, and up to eight UART clock cycles can be inserted into the end of each bit time.
Table 3 contains example values to generate common baud rates.
Document Number: 002-19479 Rev. *B
Page 10 of 47
CYW20706
Table 3. Common Baud Rate Examples
Baud Rate Adjustment
Baud Rate (bps)
High Nibble
Low Nibble
Mode
Error (%)
4M
0xFF
0xF4
High rate
0.00
3M
0xFF
0xF8
High rate
0.00
2M
0XFF
0XF4
High rate
0.00
1M
0X44
0XFF
Normal
0.00
921600
0x05
0x05
Normal
0.16
460800
0x02
0x02
Normal
0.16
230400
0x04
0x04
Normal
0.16
115200
0x00
0x00
Normal
0.16
57600
0x00
0x00
Normal
0.16
38400
0x01
0x00
Normal
0.00
Normally, the UART baud rate is set by a configuration record downloaded after reset. Support for changing the baud rate during
normal HCI UART operation is included through a vendor-specific command that allows the host to adjust the contents of the baud
rate registers.
The CYW20706 UART operates correctly with the host UART as long as the combined baud rate error of the two devices is within ±2%.
Peripheral UART Interface
The CYW20706 has a second UART that may be used to interface to other peripherals. This peripheral UART is accessed through
the optional I/O ports, which can be configured individually and separately for each functional pin as shown in Table 4.
Table 4. CYW20706 Peripheral UART
Pin Name
Configured pin name
pUART_TX
pUART_RX
pUART_CTS_N
pUART_RTS_N
P0
P2
P3
P6
P31
P33
P3
P30
Document Number: 002-19479 Rev. *B
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CYW20706
1.7 PCM Interface
The CYW20706 includes a PCM interface that shares pins with the I2S interface. The PCM Interface on the CYW20706 can connect
to linear PCM codec devices in master or slave mode. In master mode, the CYW20706 generates the PCM_CLK and PCM_SYNC
signals. In slave mode, these signals are provided by another master on the PCM interface and are inputs to the CYW20706.
1.7.1 Slot Mapping
The CYW20706 supports up to three simultaneous full-duplex SCO or eSCO channels through the PCM interface. These three
channels are time-multiplexed onto the single PCM interface by using a time-slotting scheme where the 8 kHz or 16 kHz audio sample
interval is divided into as many as 16 slots. The number of slots is dependent on the selected interface rate (128 kHz, 512 kHz, or
1024 kHz). The corresponding number of slots for these interface rate is 1, 2, 4, 8, and 16, respectively. Transmit and receive PCM
data from an SCO channel is always mapped to the same slot. The PCM data output driver tristates its output on unused slots to allow
other devices to share the same PCM interface signals. The data output driver tristates its output after the falling edge of the PCM
clock during the last bit of the slot.
1.7.2 Frame Synchronization
The CYW20706 supports both short- and long-frame synchronization in both master and slave modes. In short-frame synchronization
mode, the frame synchronization signal is an active-high pulse at the audio frame rate that is a single-bit period in width and is
synchronized to the rising edge of the bit clock. The PCM slave looks for a high on the falling edge of the bit clock and expects the
first bit of the first slot to start at the next rising edge of the clock. In long-frame synchronization mode, the frame synchronization
signal is again an active-high pulse at the audio frame rate; however, the duration is three-bit periods and the pulse starts coincident
with the first bit of the first slot.
1.7.3 Data Formatting
The CYW20706 may be configured to generate and accept several different data formats. For conventional narrowband speech mode,
the CYW20706 uses 13 of the 16 bits in each PCM frame. The location and order of these 13 bits can be configured to support various
data formats on the PCM interface. The remaining three bits are ignored on the input and may be filled with 0s, 1s, a sign bit, or a
programmed value on the output. The default format is 13-bit 2’s complement data, left justified, and clocked MSB first.
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CYW20706
1.8 Clock Frequencies
The CYW20706 49-pin FBGA package supports 20, 24, and 40 MHz crystals (XTAL) by selecting the correct crystal strapping options.
Other frequencies also supported by firmware configuration. Table 5 lists the strapping options.
Table 5. Crystal Strapping Options for the 49-Pin FBGA Package
Strapping Option Pin
BT_XTAL_STRAP_1
BT_XTAL_STRAP_0
XTAL Frequency
Pull Low
Pull Low
40 MHz
Pull Low
Pull High
24 MHz
Pull High
Pull Low
20 MHz
Pull High
Pull High
Read from serial flash or EEPROM (Supported XTAL Frequency
is 26 MHz).
1.8.1 Crystal Oscillator
The XTAL must have an accuracy of ±20 ppm as defined by the Bluetooth specification. Two external load capacitors in the range of
5 pF to 30 pF are required to work with the crystal oscillator. The selection of the load capacitors is XTAL-dependent (see Figure 4).
Figure 4. Recommended Oscillator Configuration—12 pF Load Crystal
22 pF
XIN
Crystal
XOUT
20 pF
Table 6 shows the recommended crystal specifications.
Table 6. Reference Crystal Electrical Specifications
Parameter
Conditions
Minimum
Typical
24
Maximum
40
Unit
Nominal frequency
–
20
Oscillation mode
–
Fundamental
MHz
Frequency tolerance
@25°C
–
±10
–
ppm
Tolerance stability over temp
@0°C to +70°C
–
±10
–
ppm
–
Equivalent series resistance
–
–
–
60
W
Load capacitance
–
–
12
–
pF
Operating temperature range
–
0
–
+70
°C
Storage temperature range
–
–40
–
+125
°C
Drive level
–
–
–
200
μW
Aging
–
–
–
±10
ppm/year
Shunt capacitance
–
–
–
2
pF
Document Number: 002-19479 Rev. *B
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CYW20706
HID Peripheral Block
The peripheral blocks of the CYW20706 all run from a single 128 kHz low-power RC oscillator. The oscillator can be turned on at the
request of any of the peripherals. If the peripheral is not enabled, it shall not assert its clock request line.
The keyboard scanner is a special case, in that it may drop its clock request line even when enabled, and then reassert the clock
request line if a keypress is detected.
1.9 GPIO Ports
1.9.1 49-Pin FBGA Package
The CYW20706 49-pin FBGA package has 24 general-purpose I/Os (GPIOs). All GPIOs support programmable pull-ups and are
capable of driving up to 8 mA at 3.3V or 4 mA at 1.8V, except P26, P27, P28, and P29, which are capable of driving up to 16 mA at
3.3V or 8 mA at 1.8V. The following GPIOs are available:
■
BT_GPIO_0/P36/P38 (triple bonded; only one of three is available)
■
BT_GPIO_1/P25/P32 (triple bonded; only one of three is available)
■
BT_GPIO_3/P27/P33 (triple bonded; only one of three is available)
■
BT_CLK_REQ/P4/P24 (triple bonded; only one of three is available)
■
BT_GPIO_5/P15 (dual bonded; only one of two is available)
■
BT_GPIO_6/P11/P26 (triple bonded; only one of three is available)
■
BT_GPIO_7/P30 (Dual bonded; only one of two is available)
■
BT_CLK_REQ/P4/P24 (triple bonded; only one of three is available)
■
I2S_PCM_IN/P12 (dual bonded; only one of two is available)
■
I2S_PCM_OUT/P3/P29/P35 (quadruple bonded; only one of four is available)
■
I2S_PCM_CLK/P2/P28/P37 (quadruple bonded; only one of four is available)
■
I2S_WS_PCM_SYNC/P0/P34 (triple bonded; only one of three is available)
All of these pins can be programmed as ADC inputs.
Port 26–Port 29
P[26:29] consist of four pins. All pins are capable of sinking up to 16 mA for LEDs. These pins also have PWM functionality, which
can be used for LED dimming.
Document Number: 002-19479 Rev. *B
Page 14 of 47
CYW20706
1.10 PWM
The CYW20706 has four internal PWMs. The PWM module consists of the following:
■
PWM1–4
■
Each of the four PWM channels, PWM1–4, contains the following registers:
❐
❐
❐
■
10-bit initial value register (read/write)
10-bit toggle register (read/write)
10-bit PWM counter value register (read)
PWM configuration register shared among PWM1–4 (read/write). This 12-bit register is used:
❐
❐
❐
To configure each PWM channel
To select the clock of each PWM channel
To change the phase of each PWM channel
Figure 5 shows the structure of one PWM.
Figure 5. PWM Block Diagram
pwm#_init_val_adr register
enable
clk_sel
o_flip
pwm_cfg_adr register
pwm#_togg_val_adr register
10
10
pwm#_cntr_adr
10
cntr value is ARM readable
pwm_out
Example: PWM cntr w/ pwm#_init_val = 0 (dashed line)
PWM cntr w/ pwm#_init_val = x (solid line)
10'H3FF
pwm_togg_val_adr
10'Hx
10'H000
pwm_out
Document Number: 002-19479 Rev. *B
Page 15 of 47
CYW20706
1.11 Triac Control
The CYW20706 includes hardware support for zero-crossing detection and trigger control for up to four triacs. The CYW20706 detects
zero-crossing on the AC zero detection line and uses that to provide a pulse that is offset from the zero crossing. This allows the
CYW20706 to be used in dimmer applications, as well as any other applications that require a control signal that is offset from an
input event.
The zero-crossing hardware includes an option to suppress glitches.
Note: Subject to support in WICED Studio.
1.12 Serial Peripheral Interface
The CYW20706 has two independent SPI interfaces. One is a master-only interface (SPI_2) and the other (SPI_1) can be either a
master or a slave. Each interface has a 64-byte transmit buffer and a 64-byte receive buffer. To support more flexibility for user
applications, the CYW20706 has optional I/O ports that can be configured individually and separately for each functional pin. The
CYW20706 acts as an SPI master device that supports 1.8V or 3.3V SPI slaves. The CYW20706 can also act as an SPI slave device
that supports a 1.8V or 3.3V SPI master.
Note: SPI voltage depends on VDDO; therefore, it defines the type of devices that can be supported.
1.13 Infrared Modulator
The CYW20706 includes hardware support for infrared TX. The hardware can transmit both modulated and unmodulated waveforms.
For modulated waveforms, hardware inserts the desired carrier frequency into all IR transmissions. IR TX can be sourced from
firmware-supplied descriptors, a programmable bit, or the peripheral UART transmitter.
If descriptors are used, they include IR on/off state and the duration between 1–32767 µsec. The CYW20706 IR TX firmware driver
inserts this information in a hardware FIFO and makes sure that all descriptors are played out without a glitch due to underrun (see
Figure 6).
Note: Subjected to driver support in WICED.
Figure 6. Infrared TX
VCC
R1
62
D1 Infrared‐LD
R2
CYW 20706
IR TX
2.4K
Document Number: 002-19479 Rev. *B
Q1
M M BTA42
Page 16 of 47
CYW20706
1.14 Power Management Unit
The Power Management Unit (PMU) provides power management features that can be invoked by software through power
management registers or packet-handling in the baseband core.
1.14.1 RF Power Management
The BBC generates power-down control signals for the transmit path, receive path, PLL, and power amplifier to the 2.4 GHz transceiver, which then processes the power-down functions accordingly.
1.14.2 Host Controller Power Management
Power is automatically managed by the firmware based on input device activity. As a power-saving task, the firmware controls the
disabling of the on-chip regulator when in HIDOFF (deep sleep) mode.
1.14.3 BBC Power Management
There are several low-power operations for the BBC:
■
Physical layer packet handling turns RF on and off dynamically within packet TX and RX.
■
Bluetooth-specified low-power connection mode. While in these low-power connection modes, the CYW20706 runs on the Low
Power Oscillator and wakes up after a predefined time period.
The CYW20706 automatically adjusts its power dissipation based on user activity. The following power modes are supported:
■
Active mode
■
Idle mode
■
Sleep mode
■
HIDOFF (deep sleep) mode
The CYW20706 transitions to the next lower state after a programmable period of user inactivity. When user activity resumes, the
CYW20706 immediately enters Active mode.
In HIDOFF mode, the CYW20706 baseband and core are powered off by disabling power to VDDC_OUT and PAVDD. The VDDO
domain remains powered up and will turn the remainder of the chip on when it detects user events. This mode minimizes chip power
consumption and is intended for long periods of inactivity.
Document Number: 002-19479 Rev. *B
Page 17 of 47
CYW20706
2. Pin Assignments
2.1 Pin Descriptions
2.1.1 49-Pin FBGA List
Table 7. CYW20706 49-Pin FBGA List
Pin
Signal
I/O
Power
Domain
Description
Radio
A2
RFOP
I/O
VDD_RF
RF I/O antenna port
A4
XO_IN
I
VDD_RF
Crystal or reference input
A5
XO_OUT
O
VDD_RF
Crystal oscillator output
Voltage Regulators
D1
VBAT
I
N/A
VBAT input pin. This must be less than or equal to
VDDO.
E1
E2
VDD2P5_IN
I
N/A
2.5V LDO input
VDD2P5_OUT
O
N/A
2.5V LDO output
F1
VDDC_OUT
O
N/A
1.2V LDO output
Straps
G3
BT_XTAL_STRAP_0
I
VDDO
A strap for choosing the XTAL frequencies.
F2
BT_XTAL_STRAP_1
I
VDDO
A strap for choosing the XTAL frequencies.
A6
RST_N
I
VDDO
Active-low reset input
G7
BT_TM1
I
VDDO
Reserved: connect to ground.
Digital I/O
F8
F7
E4
BT_GPIO_0
I
VDDO
BT_GPIO_0/BT_DEV_WAKE A signal from the host to
the CYW20706 that the host requires attention.
P36
I/O
VDDO
GPIO: P36
A/D converter input 3
Quadrature: QDZ0
SPI_1: SPI_CLK (master and slave)
Auxiliary Clock Output: ACLK0
External T/R switch control: ~tx_pd
P38
I/O
VDDO
GPIO: P38
A/D converter input 1
SPI_1: MOSI (master and slave) IR_TX
BT_GPIO_1
O
VDDO
BT_GPIO_1/BT_HOST_WAKE A signal from the
CYW20706 device to the host indicating that the
Bluetooth device requires attention.
P25
I/O
VDDO
GPIO: P25
SPI_1: MISO (master and slave)
Peripheral UART: puart_rx
P32
I/O
VDDO
GPIO: P32
A/D converter input 7
Quadrature: QDX0
SPI_1: SPI_CS (slave only)
Auxiliary clock output: ACLK0
Peripheral UART: puart_tx
I
VDDO
When high, this signal extends the XTAL warm-up time
for external CLK requests. Otherwise, it is typically
connected to ground.
BT_GPIO_2
Document Number: 002-19479 Rev. *B
Page 18 of 47
CYW20706
Table 7. CYW20706 49-Pin FBGA List (Cont.)
Pin
C5
D6
Signal
B6
C6
Power
Domain
Description
BT_GPIO_3
I/O
VDDO
General-purpose I/O
P27
PWM1
I/O
VDDO
GPIO: P27
SPI_1: MOSI (master and slave)
Optical control output: QOC1
Triac control 2
Current: 16 mA sink
P33
I/O
VDDO
GPIO: P33
A/D converter input 6
Quadrature: QDX1
SPI_1: MOSI (slave only)
Auxiliary clock output: ACLK1
Peripheral UART: puart_rx
BT_GPIO_4
I/O
VDDO
General-purpose I/O: can also be configured as a GCI
pin.
P6
I/O
VDDO
GPIO: P6
Quadrature: QDZ0
Peripheral UART: puart_rts
SPI_1: SPI_CS (slave only)
60Hz_main
LPO_IN
B5
I/O
I
N/A
P31
I/O
VDDO
External LPO input
GPIO: P31
A/D converter input 8
Peripheral UART: puart_tx
BT_GPIO_5
I/O
VDDO
General-purpose I/O: can also be configured as a GCI
pin.
Debug UART
P15
I/O
VDDO
GPIO: P15
A/D converter input 20 IR_RX 60Hz_main
BT_GPIO_6
I/O
VDDO
General-purpose I/O: can also be configured as a GCI
pin.
P11
I/O
VDDO
GPIO: P11
Keyboard scan output (column): KSO3
A/D converter input 24
P26
PWM0
I/O
VDDO
GPIO: P26
SPI_1: SPI_CS (slave only)
Optical control output: QOC0 Triac control 1
Current: 16 mA sink
BT_GPIO_7
I/O
VDDO
General-purpose I/O: can also be configured as a GCI
pin.
P30
I/O
VDDO
GPIO: P30
A/D converter input 9
Peripheral UART: puart_rts
F5
BT_UART_RXD
I
VDDO
UART receive data
F4
BT_UART_TXD
O
VDDO
UART transmit data
F3
BT_UART_RTS_N
O
VDDO
UART request to send output
G4
BT_UART_CTS_N
I
VDDO
UART clear to send input
Document Number: 002-19479 Rev. *B
Page 19 of 47
CYW20706
Table 7. CYW20706 49-Pin FBGA List (Cont.)
Pin
G8
Signal
I/O
Power
Domain
Description
BT_CLK_REQ
O
VDDO
Used for shared-clock application.
P4
I/O
VDDO
GPIO: P4
Quadrature: QDY0
Peripheral UART: puart_rx
SPI_1: MOSI (master and slave) IR_TX
P24
I/O
VDDO
GPIO: P24
SPI_1: SPI_CLK (master and slave)
Peripheral UART: puart_tx
D8
SPI2_MISO_I2C_SC
L
I/O
VDDO
BSC CLOCK
E8
SPI2_MOSI_I2C_SDA
I/O
VDDO
BSC DATA
E7
SPI2_CLK
O
VDDO
Serial flash SPI clock
D7
SPI2_CSN
O
VDDO
Serial flash active-low chip select
C7
I2S_DI/PCM_IN
I/O
VDDO
PCM/I2S data input.
I2C_SDA
P12
I/O
VDDO
GPIO: P12
A/D converter input 23
I2S_DO/PCM_OUT
I/O
VDDO
PCM/I2S data output.
I2C_SCL
P3
I/O
VDDO
GPIO: P3
Quadrature: QDX1
Peripheral UART: puart_cts
SPI_1: SPI_CLK (master and slave)
P29
PWM3
I/O
VDDO
GPIO: P29
Optical control output: QOC3
A/D converter input 10, LED2
Current: 16 mA sink
P35
I/O
VDDO
GPIO: P35
A/D converter input 4
Quadrature: QDY1
Peripheral UART: puart_cts
BSC: SDA
A8
B7
I2S_CLK/PCM_CLK
I/O
VDDO
PCM/I2S clock Fp1
P2
I/O
VDDO
GPIO: P2
Quadrature: QDX0
Peripheral UART: puart_rx
SPI_1: SPI_CS (slave only)
SPI_1: MOSI (master only)
P28
PWM2
I/O
VDDO
GPIO: P28
Optical control output: QOC2
A/D converter input 11, LED1
Current: 16 mA sink
P37
I/O
VDDO
GPIO: P37
A/D converter input 2
Quadrature: QDZ1
SPI_1: MISO (slave only)
Auxiliary clock output: ACLK1
BSC: SCL
Document Number: 002-19479 Rev. *B
Page 20 of 47
CYW20706
Table 7. CYW20706 49-Pin FBGA List (Cont.)
I/O
Power
Domain
2
I S_WS/
PCM_SYNC
I/O
VDDO
PCM sync/I2S word select
P0
I/O
VDDO
GPIO: P0
A/D converter input 29
Peripheral UART: puart_tx
SPI_1: MOSI (master and slave) IR_RX, 60Hz_main
Note: Not available during TM1 = 1.
P34
I/O
VDDO
GPIO: P34
A/D converter input 5
Quadrature: QDY0
Peripheral UART: puart_rx
External T/R switch control: tx_pd
I
VDDO
•
•
Pin
C8
G2
Signal
BT_OTP_3P3V_ON
Description
If OTP is used, pull this pin high.
If OTP is not used, pull this pin low.
JTAG
D5
JTAG_SEL
I/O
VDDO
ARM JTAG debug mode control.
Connect to GND for all applications.
Supplies
G1
BT_OTP_VDD3P3V
B4
BT_IFVDD1P2
A1
BT_PAVDD2P5
B1
BT_LNAVDD1P2
I
N/A
Radio LNA supply
C1
BT_VCOVDD1P2
I
N/A
Radio VCO supply
A3
BT_PLLVDD1P2
I
N/A
Radio RF PLL supply
B8, G6
VDDC
I
N/A
Core logic supply
G5
VDDO
I
N/A
Digital I/O supply voltage
–
N/A
Ground
A7, B2, B3, C2, D2, F6 VSS
Document Number: 002-19479 Rev. *B
I
N/A
3.3V OTP supply voltage
I
N/A
Radio IF PLL supply
I
N/A
Radio PA supply
Page 21 of 47
CYW20706
2.2 Ball Map
2.2.1 49-Pin FBGA Ball Map
Figure 7. CYW20706 49-Pin FBGA Ball Map
1
2
3
4
5
6
7
8
A
BT_PAVDD2P5
RFOP
BT_PLLVDD1P2
XO_IN
XO_OUT
RST_N
VSS
I2S_DO/PCM_OUT/P3/
P29/P35
A
B
BT_LNAVDD1P2
VSS
VSS
BT_IFVDD1P2
BT_GPIO_5/P15
BT_GPIO_6/
P11/P26
I2S_CLK/
PCM_CLK/
P2/P28/P37
VDDC
B
C
BT_VCOVDD1P2
VSS
NC
NC
BT_GPIO_3/P27/
P33
BT_GPIO_7/
P30
D
VBAT
VSS
NC
NC
JTAG_SEL
BT_GPIO_4/
P6/LPO_IN/
P31
SPI2_CSN
SPI2_MISO_I2C_SCL
D
E
VDD2P5_IN
VDD2P5_OUT
NC
BT_GPIO_2
NC
NC
SPI2_CLK
SPI2_MOSI_I2C_SDA
E
F
VDDC_OUT
BT_XTAL_STRAP_1
BT_UART_RTS_N
BT_UART_TXD
BT_UART_RXD
VSS
BT_GPIO_1/P25/
P32
BT_GPIO_0/P36/P38
F
G
BT_OTP_VDD3P3V
BT_OTP_3P3V_ON
BT_XTAL_STRAP_0
BT_UART_CTS_N
VDDO
VDDC
BT_TM1
BT_CLK_REQ/P4/P24
G
1
2
3
4
5
6
7
8
Document Number: 002-19479 Rev. *B
I2S_DI/PCM_IN/ I2S_WS/PCM_SYNC/P0/
P12
P34
C
Page 22 of 47
CYW20706
3. Specifications
3.1 Electrical Characteristics
Table 8 shows the maximum electrical rating for voltages referenced to VDD pin.
Table 8. Absolute Maximum Ratings
Specification
Parameter
Minimum
Nominal
Maximum
Units
–30
25
85
°C
Storage temperature
–40
–
150
°C
ESD tolerance HBM
–2000
–
2000
V
ESD tolerance MM
–100
–
100
V
ESD tolerance CDM
–500
–
500
V
Latch-up
–200
–
200
mA
VDDC
–0.5
–
1.38
V
VDDO
–0.5
–
3.795
V
VDD_RF (excluding PA)
–0.5
–
1.38
V
VDDPA
–0.5
–
3.565
V
VBAT
–0.5
–
3.795
V
Ambient temperature of operation
BT_OTP_VDD3P3V
–0.5
–
3.795
V
VDD2P5_IN
–0.5
–
3.795
V
Units
Table 9 shows the power supply characteristics for the range TJ = 0°C to 125°C.
Table 9. Power Supply Specifications
Parameter
Min.
Typ.
Max.
–
1.14
1.2
1.26
V
VDDO
–
1.62
3.3
3.6
V
VDDRF
Excluding class 1 PA
1.14
1.2
1.26
V
VDDPA
Class 1 operation
2.25
2.5 to 2.8
2.94
V
–
1.62
3.3
3.6
V
VDD Core
1
1
VBAT
Conditions
BT_OTP_VDD3P3V
–
3.0
3.3
3.6
V
VDD2P5_IN
–
3.0
3.3
3.6
V
1. VDDO must be ≥ VBAT.
Document Number: 002-19479 Rev. *B
Page 23 of 47
CYW20706
Table 10. VDDC LDO Electrical Specifications
Parameter
Conditions
Min.
Typical
Max.
3.6
Unit
Input Voltage
–
1.62
3.3
Nominal Output Voltage
–
–
1.2
DC Accuracy
Accuracy at any step, including bandgap
reference.
–5
–
5
%
Output Voltage
Programmability
Range
0.89
–
1.34
V
Step Size
–
30
–
mV
Load Current
–
–
–
40
mA
Dropout Voltage
Iload = 40 mA
–
–
200
mV
Line Regulation
Vin from 1.62V to 3.6V, Iload = 40 mA
–
–
0.2
%Vo/V
Load Regulation
Iload = 1 mA to 40 mA, Vout = 1.2V, Package +
PCB R = 0.3Ω
–
0.02
0.05
%Vo/mA
Quiescent Current
No load @Vin = 3.3V
–
18
23
μA
Power down Current
Vin = 3.3V @25C
–
0.2
–
μA
Vin = 3.6 @80C
–
TBD
–
–
Output Noise
Iload = 15 mA, 100 kHz
–
40
nV/sqrtHz
Iload = 15 mA, 2 MHz
–
14
nV/sqrtHz
–
dB
PSRR
Vin = 3.3, Vout = 1.2V,
Iload = 40 mA
1 kHz
65
–
V
V
10 kHz
60
–
–
dB
100 kHz
55
–
–
dB
Over Current Limit
–
100
–
–
mA
Turn-on Time
VBAT = 3.3V, BG already on, LDO OFF to ON,
Co = 1 μF, 90% of Vout
–
–
100
μs
In-rush current during turnon
During start-up, Co = 1 μF
–
–
60
mA
Transient Performance
Iload = 1 mA to 15 mA and 15 mA to 1 mA in
1 μs
–
–
40
mV
Iload = 15 mA to 40 mA and 40 mA to 15 mA in
1 μs
–
–
25
–
0.8
1
4.7
μF
–
1
–
μF
External Output Capacitor
Ceramic cap with ESR ≤ 0.5Ω
External Input Capacitor
Ceramic, X5R, 0402, ±20%, 10V.
Document Number: 002-19479 Rev. *B
Page 24 of 47
CYW20706
Table 11. BTLDO_2P5 Electrical Specifications
Parameters
Conditions
Input supply voltage, Vin Min = Vo + 0.2V = 2.7V (for Vo = 2.5V)
Dropout voltage requirement must be met under maximum
load for performance specs.
Min
Typ
Max
Units
3.0
3.3
3.6
V
–
2.5
–
V
2.2
–5
–
2.8
5
V
%
–
–
200
mV
Nominal output voltage,
Vo
Default = 2.5V
Output voltage
programmability
Range
Accuracy at any step (including line/load regulation),
load >0.1 mA
Dropout voltage
At max load
Output current
–
0.1
–
70
mA
Quiescent current
No load; Vin = Vo + 0.2V, Vin = Vo + 0.2V
–
8
660
16
700
μA
Leakage current
Power-down mode. At junction temperature 85°C.
–
1.5
5
μA
Line regulation
Vin from (Vo + 0.2V) to 3.6V, max load
–
–
3.5
mV/V
Load regulation
Load from 1 mA to 70 mA, Vin = 3.6V
–
–
0.3
mV/mA
PSRR
Vin ≥ Vo + 0.2V, Vo = 2.5V, Co = 2.2 μF, max load, 100 Hz to
100 kHz
20
–
–
dB
LDO turn-on time
LDO turn-on time when rest of chip is up
External output
capacitor, Co
Ceramic, X5R, 0402, (ESR: 5m-240 mΩ), ±20%, 6.3V
External input capacitor
Ceramic, X5R, 0402, ±20%, 10V
Document Number: 002-19479 Rev. *B
–
–
150
μs
0.7
2.2
2.64
μF
–
1
–
μF
Page 25 of 47
CYW20706
3.1.1 Digital I/O Characteristics
Table 12. Digital I/O Characteristics
Characteristics
Value
Symbol
Minimum
Typical
Maximum
Unit
VDDO = 1.8V
VIL
–
–
0.6
V
VDDO = 3.3
VIL
–
–
0.8
V
VDDO = 1.8V
VIH
1.1
–
–
V
VDDO = 3.3V
VIH
2.0
–
–
V
–
–
0.4
V
–
–
V
Input Voltage
■
■
Low
High
Output Voltage
■
Low
–
VOL
■
High
VDDO – 0.4V
VOH
Input Current
■
Low
–
IIL
–
–
1.0
μA
■
High
–
IIH
–
–
1.0
μA
Output Current
■
Low
VDDO = 3.3V, VOL = 0.4V
IOL
–
–
2.0
mA
■
High
VDDO = 3.3V, VOH = 2.9V
IOH
–
–
4.0
mA
VDDO = 1.8V, VOH = 1.4
IOH
–
–
TBD
mA
–
CIN
–
–
0.4
pF
Input capacitance
Note: In Table 13, current consumption measurements are taken at VBAT with the assumption that VBAT is connected to VDDO and
VDD2P5_IN.
Document Number: 002-19479 Rev. *B
Page 26 of 47
CYW20706
3.1.2 Current Consumption
Table 13. Bluetooth, BLE, BR and EDR Current Consumption, Class 1
Mode
3DH5/3DH5
Remarks
–
Typ.
Unit
37.10
mA
BLE
■
BLE
Connected 600 ms interval
211
μA
■
BLE ADV
1.00 sec ADV interval
176
μA
■
BLE Scan
No devices present. A 1.28-sec interval with 11.25 ms scan window.
355
μA
DMx/DHx
■
DM1/DH1
–
32.15
mA
■
DM3/DH3
–
38.14
mA
■
DM5/DH5
–
38.46
mA
HIDOFF
Deep sleep
2.69
μA
Page scan
Periodic scan rate is 1.28 sec
0.486
mA
Receive
■
1 Mbps
Peak current level during reception of a basic-rate packet.
26.373
mA
■
EDR
Peak current level during the reception of a 2 or 3 Mbps rate packet.
26.373
mA
4.95
mA
Sniff Slave
■
11.25 ms
–
■
22.5 ms
–
2.6
mA
■
495.00 ms
Based on one attempt and no timeout.
254
μA
Transmit
■
1 Mbps
Peak current level during the transmission of a basic-rate packet: GFSK output 60.289
power = 10 dBm.
mA
■
EDR
Peak current level during the transmission of a 2 or 3 Mbps rate packet. EDR
output power = 8 dBm.
mA
52.485
Note: In Table 14, current consumption measurements are taken at input of VDD2P5_IN, VDDO, and VBAT combined
(VDD2P5_IN = VDDO = VBAT = 3.0V).
Table 14. Bluetooth and BLE Current Consumption, Class 2 (0 dBm)
Mode
3DH5/3DH5
Remarks
–
Typ.
Unit
31.57
mA
BLE
■
BLE ADV
1.00 sec ADV interval
174
μA
■
BLE Scan
No devices present. A 1.28-sec interval with 11.25 ms scan window.
368
μA
DMx/DHx
■
DM1/DH1
–
27.5
mA
■
DM3/DH3
–
31.34
mA
■
DM5/DH5
–
32.36
mA
Document Number: 002-19479 Rev. *B
Page 27 of 47
CYW20706
3.2 RF Specifications
Note:
■
All specifications in Table 15 are for industrial temperatures.
■
All specifications in Table 15 are single-ended. Unused inputs are left open.
Table 15. Receiver RF Specifications
Minimum
Typical 1
Maximum
–
2402
–
2480
MHz
GFSK, 0.1% BER, 1 Mbps
–
–93.5
–
dBm
LE GFSK, 0.1% BER, 1 Mbps
–
–96.5
–
dBm
/4-DQPSK, 0.01% BER, 2 Mbps
–
–95.5
–
dBm
Parameter
Conditions
Unit
General
Frequency range
RX sensitivity
2
8-DPSK, 0.01% BER, 3 Mbps
–
–89.5
–
dBm
Maximum input
GFSK, 1 Mbps
–
–
–20
dBm
Maximum input
/4-DQPSK, 8-DPSK, 2/3 Mbps
–
–
–20
dBm
Interference Performance
C/I cochannel
GFSK, 0.1% BER
–
9.5
11
dB
C/I 1 MHz adjacent channel
GFSK, 0.1% BER
–
–5
0
dB
C/I 2 MHz adjacent channel
GFSK, 0.1% BER
–
–40
–30.0
dB
C/I > 3 MHz adjacent channel
GFSK, 0.1% BER
–
–49
–40.0
dB
C/I image channel
GFSK, 0.1% BER
–
–27
–9.0
dB
C/I 1 MHz adjacent to image channel
GFSK, 0.1% BER
–
–37
–20.0
dB
C/I cochannel
11
13
dB
–
–8
0
dB
C/I 2 MHz adjacent channel
/4-DQPSK, 0.1% BER
/4-DQPSK, 0.1% BER
/4-DQPSK, 0.1% BER
–
–
–40
–30.0
dB
C/I > 3 MHz adjacent channel
8-DPSK, 0.1% BER
–
–50
–40.0
dB
C/I image channel
–27
–7.0
dB
C/I 1 MHz adjacent to image channel
/4-DQPSK, 0.1% BER
/4-DQPSK, 0.1% BER
–
–
–40
–20.0
dB
C/I cochannel
8-DPSK, 0.1% BER
–
17
21
dB
C/I 1 MHz adjacent channel
8-DPSK, 0.1% BER
–
–5
5
dB
C/I 2 MHz adjacent channel
8-DPSK, 0.1% BER
–
–40
–25.0
dB
C/I > 3 MHz adjacent channel
8-DPSK, 0.1% BER
–
–47
–33.0
dB
C/I Image channel
8-DPSK, 0.1% BER
–
–20
0
dB
C/I 1 MHz adjacent to image channel
8-DPSK, 0.1% BER
–
–35
–13.0
dB
C/I 1 MHz adjacent channel
Out-of-Band Blocking Performance (CW)3
30 MHz–2000 MHz
0.1% BER
–
–10.0
–
dBm
2000–2399 MHz
0.1% BER
–
–27
–
dBm
2498–3000 MHz
0.1% BER
–
–27
–
dBm
3000 MHz–12.75 GHz
0.1% BER
–
–10.0
–
dBm
Document Number: 002-19479 Rev. *B
Page 28 of 47
CYW20706
Table 15. Receiver RF Specifications (Cont.)
Parameter
Conditions
Minimum
Typical 1
Maximum
Unit
Out-of-Band Blocking Performance, Modulated Interferer
776–764 MHz
CDMA
–
–104
–
dBm
824–849 MHz
CDMA
–
–104
–
dBm
1850–1910 MHz
CDMA
–
–234
–
dBm
824–849 MHz
EDGE/GSM
–
–104
–
dBm
880–915 MHz
EDGE/GSM
–
–104
–
dBm
1710–1785 MHz
EDGE/GSM
–
–234
–
dBm
1850–1910 MHz
EDGE/GSM
–
–234
–
dBm
1850–1910 MHz
WCDMA
–
–234
–
dBm
1920–1980 MHz
WCDMA
–
–234
–
dBm
–39.0
–
–
dBm
dBm
Intermodulation Performance5
BT, Df = 5 MHz
–
Spurious
Emissions6
30 MHz to 1 GHz
–
–
–
–62
1 GHz to 12.75 GHz
–
–
–
–47
dBm
65 MHz to 108 MHz
FM Rx
–
–147
–
dBm/Hz
746 MHz to 764 MHz
CDMA
–
–147
–
dBm/Hz
851–894 MHz
CDMA
–
–147
–
dBm/Hz
925–960 MHz
EDGE/GSM
–
–147
–
dBm/Hz
1805–1880 MHz
EDGE/GSM
–
–147
–
dBm/Hz
1930–1990 MHz
PCS
–
–147
–
dBm/Hz
2110–2170 MHz
WCDMA
–
–147
–
dBm/Hz
-118
-
dBm/Hz
GLONASS Band Spurious Emissions7
Spurious Emissions
-
Out-of-Band Noise Floor
1570-1580MHz
GPS
-
-147
-
dBm/Hz
1592-1610MHz
GLONASS
-
-147
-
dBm/Hz
1.
2.
3.
4.
5.
Typical operating conditions are 1.22V operating voltage and 25°C ambient temperature.
The receiver sensitivity is measured at BER of 0.1% on the device interface.
Meets this specification using a front-end bandpass filter.
Numbers are referred to the pin output with an external BPF filter.
f0 = –64 dBm Bluetooth-modulated signal, f1 = –39 dBm sine wave, f2 = –39 dBm Bluetooth-modulated signal, f0 = 2f1 – f2, and |f2 –
f1| = n*1 MHz, where n is 3, 4, or 5. For the typical case, n = 4.
6. Includes baseband radiated emissions.
7. Max TX power (12dBm at chip out), Modulation is PRBS9, Modulation type is GFSK.
Note:
■
All specifications in Table 16 are for industrial temperatures.
■
All specifications in Table 16 are single-ended. Unused inputs are left open.
Document Number: 002-19479 Rev. *B
Page 29 of 47
CYW20706
Table 16. Transmitter RF Specifications
Parameter
Conditions
Minimum
Typical
Maximum
Unit
–
2402
–
2480
MHz
–
–
12
–
dBm
–
–
9
–
dBm
Class 2: GFSK Tx power
–
–
2
–
dBm
Power control step
–
2
4
8
dB
General
Frequency range
Class1: GFSK Tx
Class1: EDR Tx
power1
power2
Modulation Accuracy
/4-DQPSK Frequency Stability
/4-DQPSK RMS DEVM
/4-QPSK Peak DEVM
/4-DQPSK 99% DEVM
–
–10
–
10
kHz
–
–
–
20
%
–
–
–
35
%
–
–
–
30
%
8-DPSK frequency stability
–
–10
–
10
kHz
8-DPSK RMS DEVM
–
–
–
13
%
8-DPSK Peak DEVM
–
–
–
25
%
8-DPSK 99% DEVM
–
–
–
20
%
–
–
–26
dBc
In-Band Spurious Emissions
1.0 MHz < |M – N| < 1.5 MHz
–
1.5 MHz < |M – N| < 2.5 MHz
–
–
–
–20
dBm
|M – N| > 2.5 MHz
–
–
–
–40
dBm
Out-of-Band Spurious Emissions
30 MHz to 1 GHz
–
–
–
–36.03
dBm
1 GHz to 12.75 GHz
–
–
–
–30.03, 4
dBm
1.8 GHz to 1.9 GHz
–
–
–
–47.0
dBm
5.15 GHz to 5.3 GHz
–
–
–
–47.0
dBm
1.
2.
3.
4.
12 dBm output for GFSK measured with PAVDD = 2.5V.
9 dBm output for EDR measured with PAVDD = 2.5V.
Maximum value is the value required for Bluetooth qualification.
Meets this spec using a front-end band pass filter.
Document Number: 002-19479 Rev. *B
Page 30 of 47
CYW20706
Table 17. BLE RF Specifications
Parameter
Frequency range
Rx
Conditions
N/A
sense1
Tx power2
Mod Char: Delta F1 average
Mod Char: Delta F2
max3
Mod Char: Ratio
Minimum
Typical
Maximum
Unit
2402
–
2480
MHz
GFSK, 0.1% BER, 1 Mbps
–
–96.5
–
dBm
N/A
–
9
–
dBm
N/A
225
255
275
kHz
N/A
99.9
–
–
%
N/A
0.8
0.95
–
%
1. Dirty Tx is Off.
2. The BLE Tx power can be increased to compensate for front-end losses such as BPF, diplexer, switch, etc. The output is capped at 12 dBm
out. The BLE Tx power at the antenna port cannot exceed the 10 dBm EIRP specification limit.
3. At least 99.9% of all delta F2 max frequency values recorded over 10 packets must be greater than 185 kHz.
3.3 Timing and AC Characteristics
In this section, use the numbers listed in the Reference column of each table to interpret the following timing diagrams.
3.3.1 UART Timing
Table 18. UART Timing Specifications
Reference
Min.
Max.
Unit
Delay time, UART_CTS_N low to UART_TXD valid
–
24
Baud out cycles
2
Setup time, UART_CTS_N high before midpoint of stop bit
–
10
ns
3
Delay time, midpoint of stop bit to UART_RTS_N high
–
2
Baud out cycles
1
Characteristics
Figure 8. UART Timing
Document Number: 002-19479 Rev. *B
Page 31 of 47
CYW20706
3.3.2 SPI Timing
The SPI interface can be clocked up to 12 MHz.
Table 19 and Figure 9 show the timing requirements when operating in SPI Mode 0 and 2.
Table 19. SPI Mode 0 and 2
Reference
Characteristics
Minimum
Maximum
Unit
1
Time from slave assert SPI_INT to master assert SPI_CSN (DirectRead)
0
∞
ns
2
Time from master assert SPI_CSN to slave assert SPI_INT (DirectWrite)
0
∞
ns
3
Time from master assert SPI_CSN to first clock edge
20
∞
ns
4
Setup time for MOSI data lines
8
1
/2 SCK
ns
5
Hold time for MOSI data lines
8
1
/2 SCK
ns
6
Time from last sample on MOSI/MISO to slave deassert SPI_INT
0
100
ns
7
Time from slave deassert SPI_INT to master deassert SPI_CSN
8
Idle time between subsequent SPI transactions
0
∞
ns
1 SCK
∞
ns
Figure 9. SPI Timing, Mode 0 and 2
8
SPI_CSN
SPI_INT
(DirectWrite)
2
6
SPI_INT
(DirectRead)
7
1
3
SPI_CLK
(Mode 0)
SPI_CLK
(Mode 2)
4
SPI_MOSI
SPI_MISO
‐
Not Driven
First Bit
First Bit
5
Second Bit
Last bit
‐
Second Bit
Last bit
Not Driven
Table 20 and Figure 10 show the timing requirements when operating in SPI Mode 0 and 2.
Document Number: 002-19479 Rev. *B
Page 32 of 47
CYW20706
Table 20. SPI Mode 1 and 3
Reference
Characteristics
Minimum
Maximum
Unit
1
Time from slave assert SPI_INT to master assert SPI_CSN
(DirectRead)
0
∞
ns
2
Time from master assert SPI_CSN to slave assert SPI_INT
(DirectWrite)
0
∞
ns
3
Time from master assert SPI_CSN to first clock edge
20
∞
ns
4
Setup time for MOSI data lines
8
1
/2 SCK
ns
5
Hold time for MOSI data lines
8
1
/2 SCK
ns
6
Time from last sample on MOSI/MISO to slave deassert SPI_INT
0
100
ns
7
Time from slave deassert SPI_INT to master deassert SPI_CSN
8
Idle time between subsequent SPI transactions
0
∞
ns
1 SCK
∞
ns
Figure 10. SPI Timing, Mode 1 and 3
SPI_CSN
8
SPI_INT
(DirectWrite)
2
6
SPI_INT
(DirectRead)
7
1
SPI_CLK
(Mode 1)
3
SPI_CLK
(Mode 3)
4
5
SPI_MOSI
‐
Invalid bit
First bit
Last bit
‐
SPI_MISO
Not Driven
Invalid bit
First bit
Last bit
Not Driven
Document Number: 002-19479 Rev. *B
Page 33 of 47
CYW20706
3.3.3 BSC Interface Timing
The specifications in Table 21 references Figure 11.
Table 21. BSC Interface Timing Specifications (up to 1 MHz)
Reference
1
Characteristics
Minimum
Clock frequency
–
Maximum
100
Unit
kHz
400
800
1000
2
START condition setup time
650
–
ns
3
START condition hold time
280
–
ns
4
Clock low time
650
–
ns
5
Clock high time
280
–
ns
0
–
ns
6
Data input hold
7
Data input setup time
100
–
ns
8
STOP condition setup time
280
–
ns
9
Output valid from clock
–
400
ns
10
Bus free time2
650
–
ns
time1
1. As a transmitter, 125 ns of delay is provided to bridge the undefined region of the falling edge of SCL to avoid unintended generation of START
or STOP conditions.
2. Time that the CBUS must be free before a new transaction can start.
Figure 11. BSC Interface Timing Diagram
1
5
SCL
2
4
8
6
3
7
SDA
IN
10
9
SDA
OUT
Document Number: 002-19479 Rev. *B
Page 34 of 47
CYW20706
3.3.4 PCM Interface Timing
Short Frame Sync, Master Mode
Figure 12. PCM Timing Diagram (Short Frame Sync, Master Mode)
1
2
3
P C M _ B C LK
4
P C M _ S YN C
8
PCM _OUT
H IG H IM P E D A N C E
5
7
6
P C M _ IN
Table 22. PCM Interface Timing Specifications (Short Frame Sync, Master Mode)
Reference
Characteristics
Minimum
Typical
Maximum
Unit
1
PCM bit clock frequency
–
–
12.0
MHz
2
PCM bit clock LOW
41.0
–
–
ns
3
PCM bit clock HIGH
41.0
–
–
ns
4
PCM_SYNC delay
0
–
25.0
ns
5
PCM_OUT delay
0
–
25.0
ns
6
PCM_IN setup
8.0
–
–
ns
7
PCM_IN hold
8.0
–
–
ns
8
Delay from rising edge of PCM_BCLK during last bit period to
PCM_OUT becoming high impedance
0
–
25.0
ns
Document Number: 002-19479 Rev. *B
Page 35 of 47
CYW20706
Short Frame Sync, Slave Mode
Figure 13. PCM Timing Diagram (Short Frame Sync, Slave Mode)
1
2
3
PCM _BCLK
4
5
PCM _SYN C
9
PCM _O U T
H IG H IM P E D A N C E
6
8
7
P C M _ IN
Table 23. PCM Interface Timing Specifications (Short Frame Sync, Slave Mode)
Reference
Characteristics
Minimum
Typical
Maximum
Unit
–
–
12.0
MHz
1
PCM bit clock frequency
2
PCM bit clock LOW
41.0
–
–
ns
3
PCM bit clock HIGH
41.0
–
–
ns
4
PCM_SYNC setup
8.0
–
–
ns
5
PCM_SYNC hold
8.0
–
–
ns
6
PCM_OUT delay
0
–
25.0
ns
7
PCM_IN setup
8.0
–
–
ns
8
PCM_IN hold
8.0
–
–
ns
9
Delay from rising edge of PCM_BCLK during last bit period to
PCM_OUT becoming high impedance
0
–
25.0
ns
Document Number: 002-19479 Rev. *B
Page 36 of 47
CYW20706
Long Frame Sync, Master Mode
Figure 14. PCM Timing Diagram (Long Frame Sync, Master Mode)
1
2
3
PCM_BCLK
4
PCM_SYNC
8
PCM_OUT
HIGH IMPEDANCE
Bit 1
Bit 0
5
7
6
Bit 0
PCM_IN
Bit 1
Table 24. PCM Interface Timing Specifications (Long Frame Sync, Master Mode)
Reference
Characteristics
Minimum
Typical
Maximum
Unit
1
PCM bit clock frequency
–
–
12.0
MHz
2
PCM bit clock LOW
41.0
–
–
ns
3
PCM bit clock HIGH
41.0
–
–
ns
4
PCM_SYNC delay
0
–
25.0
ns
5
PCM_OUT delay
0
–
25.0
ns
6
PCM_IN setup
8.0
–
–
ns
7
PCM_IN hold
8.0
–
–
ns
8
Delay from rising edge of PCM_BCLK during last bit period to
PCM_OUT becoming high impedance
0
–
25.0
ns
Document Number: 002-19479 Rev. *B
Page 37 of 47
CYW20706
Long Frame Sync, Slave Mode
Figure 15. PCM Timing Diagram (Long Frame Sync, Slave Mode)
1
2
3
PCM_BCLK
4
5
PCM_SYNC
9
PCM_OUT
Bit 0
HIGH IMPEDANCE
Bit 1
6
8
7
Bit 0
PCM_IN
Bit 1
Table 25. PCM Interface Timing Specifications (Long Frame Sync, Slave Mode)
Reference
Characteristics
Minimum
Typical
Maximum
Unit
1
PCM bit clock frequency
–
–
12.0
MHz
2
PCM bit clock LOW
41.0
–
–
ns
3
PCM bit clock HIGH
41.0
–
–
ns
4
PCM_SYNC setup
8.0
–
–
ns
5
PCM_SYNC hold
8.0
–
–
ns
6
PCM_OUT delay
0
–
25.0
ns
7
PCM_IN setup
8.0
–
–
ns
8
PCM_IN hold
8.0
–
–
ns
9
Delay from rising edge of PCM_BCLK during last bit period to
PCM_OUT becoming high impedance
0
–
25.0
ns
3.3.5 I2S Timing
The CYW20706 supports two independent I2S digital audio ports. The I2S interface supports both master and slave modes. The I2S
signals are:
■
I2S clock: I2S SCK
■
I2S Word Select: I2S WS
■
I2S Data Out: I2S SDO
■
I2S Data In: I2S SDI
I2S SCK and I2S WS become outputs in master mode and inputs in slave mode, while I2S SDO always stays as an output. The channel
word length is 16 bits and the data is justified so that the MSB of the left-channel data is aligned with the MSB of the I2S bus, per the
I2S specification. The MSB of each data word is transmitted one bit clock cycle after the I2S WS transition, synchronous with the falling
edge of bit clock. Left-channel data is transmitted when I2S WS is low, and right-channel data is transmitted when I2S WS is high.
Data bits sent by the CYW20706 are synchronized with the falling edge of I2S_SCK and should be sampled by the receiver on the
rising edge of I2S_SSCK.
Document Number: 002-19479 Rev. *B
Page 38 of 47
CYW20706
The clock rate in master mode is either of the following:
48 kHz x 32 bits per frame = 1.536 MHz
48 kHz x 50 bits per frame = 2.400 MHz
The master clock is generated from the input reference clock using a N/M clock divider.
In the slave mode, any clock rate is supported to a maximum of 3.072 MHz.
Note: Timing values specified in Table 26 are relative to high and low threshold levels.
Table 26. Timing for I2S Transmitters and Receivers
Transmitter
Lower Limit
Clock Period T
Receiver
Upper Limit
Lower Limit
Upper Limit
Min
Max
Min
Max
Min
Max
Min
Max
Notes
Ttr
–
–
–
Tr
–
–
–
1
Master Mode: Clock generated by transmitter or receiver
HIGH tHC
0.35Ttr
–
–
–
0.35Ttr
–
–
–
2
LOWtLC
0.35Ttr
–
–
–
0.35Ttr
–
–
–
2
Slave Mode: Clock accepted by transmitter or receiver
HIGH tHC
–
0.35Ttr
–
–
–
0.35Ttr
–
–
3
LOW tLC
–
0.35Ttr
–
–
–
0.35Ttr
–
–
3
Rise time tRC
–
–
0.15Ttr
–
–
–
–
4
Transmitter
Delay tdtr
–
–
–
0.8T
–
–
–
–
5
Hold time thtr
0
–
–
–
–
–
–
–
4
Receiver
Setup time tsr
–
–
–
–
–
0.2Tr
–
–
6
Hold time thr
–
–
–
–
–
0
–
–
6
1. The system clock period T must be greater than Ttr and Tr because both the transmitter and receiver have to be able to handle the data
transfer rate.
2. At all data rates in master mode, the transmitter or receiver generates a clock signal with a fixed mark/space ratio. For this reason, tHC and
tLC are specified with respect to T.
3. In slave mode, the transmitter and receiver need a clock signal with minimum HIGH and LOW periods so that they can detect the signal. So
long as the minimum periods are greater than 0.35Tr, any clock that meets the requirements can be used.
4. Because the delay (tdtr) and the maximum transmitter speed (defined by Ttr) are related, a fast transmitter driven by a slow clock edge can
result in tdtr not exceeding tRC which means thtr becomes zero or negative. Therefore, the transmitter has to guarantee that thtr is greater than
or equal to zero, so long as the clock rise time tRC is not more than tRCmax, where tRCmax is not less than 0.15Ttr.
5. To allow data to be clocked out on a falling edge, the delay is specified with respect to the rising edge of the clock signal and T, always giving
the receiver sufficient setup time.
6. The data setup and hold time must not be less than the specified receiver setup and hold time.
Note: The time periods specified in Figure 16 and Figure 17 are defined by the transmitter speed. The receiver specifications must
match transmitter performance.
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CYW20706
Figure 16. I2S Transmitter Timing
T
tRC*
t LC > 0.3 5T
t H C > 0.3 5T
V H = 2.0 V
SC K
V L = 0.8 V
t h tr > 0
t o tr < 0 .8 T
SD an d W S
T = C lock p e riod
T tr = M in im u m allo w ed clo ck p erio d fo r tran sm itter
T = T tr
* t R C is o n ly re le v an t fo r tran sm itters in slav e m od e .
Figure 17. I2S Receiver Timing
T
t LC > 0.35T
t HC > 0.35
V H = 2.0V
SCK
V L = 0.8V
t sr > 0.2T
t hr > 0
SD and W S
T = Clock period
T r = M inim um allow ed clock period for transm itter
T > T r
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CYW20706
4. Mechanical Information
4.1 Package Diagrams
Figure 18. CYW20706 49-pin FBGA Package (4.5 mm x 4.0 mm)
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CYW20706
Figure 19. CYW20706 36-pin WLBGA Package (2.8 mm x 2.5 mm)
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CYW20706
4.2 Tape Reel and Packaging Specifications
Table 27. CYW20706 Tape Reel Specifications
Parameter
Value
Quantity per reel
2500
Reel diameter
13 inches
Hub diameter
4 inches
Tape width
16 mm
Tape pitch
12 mm
The top-left corner of the CYW20706 package is situated near the sprocket holes, as shown in Figure 20.
Figure 20. Pin 1 Orientation
Pin 1: Top left corner of package toward sprocket holes
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CYW20706
5. Ordering Information
Table 28. Ordering Information
Part Number
CYW20706UA2KFFB4G
Package
49-pin FBGA
6. Additional information
6.1 Acronyms and Abbreviations
The following list of acronyms and abbreviations may appear in this document.
Term
ADC
Description
analog-to-digital converter
AFH
adaptive frequency hopping
AHB
advanced high-performance bus
APB
advanced peripheral bus
APU
audio processing unit
ARM7TDMI-S™
Acorn RISC Machine 7 Thumb instruction, Debugger, Multiplier, Ice, Synthesizable
BR
Basic Rate
BTC
Bluetooth controller
COEX
coexistence
DFU
device firmware update
DH
Data high rate
DM
Data medium rate
DMA
direct memory access
EBI
external bus interface
EDR
Enhanced Data Rate
GFSK
Gaussian Frequency Shift Keying
HCI
Host Control Interface
HV
high voltage
IDC
initial digital calibration
IF
intermediate frequency
IRQ
interrupt request
JTAG
Joint Test Action Group
LCU
link control unit
LDO
low dropout
LHL
lean high land
LPO
low power oscillator
LV
LogicVision™
MIA
multiple interface agent
PCM
pulse code modulation
PLL
phase locked loop
PMU
power management unit
POR
power-on reset
PWM
pulse width modulation
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CYW20706
Term
Description
QD
quadrature decoder
RAM
random access memory
RC oscillator
A resistor-capacitor oscillator is a circuit composed of an amplifier, which provides the output signal, and a
resistor-capacitor network, which controls the frequency of the signal.
RF
radio frequency
ROM
read-only memory
RX/TX
receive, transmit
SPI
serial peripheral interface
SW
software
UART
universal asynchronous receiver/transmitter
UPI
µ-processor interface
WD
watchdog
In most cases, acronyms and abbreviations are defined upon first use. For a more complete list of acronyms and other terms used in
Cypress documents, go to: http://www.cypress.com/glossary.
6.2 IoT Resources
Cypress provides a wealth of data at http://www.cypress.com/internet-things-iot to help you to select the right IoT device for your
design, and quickly and effectively integrate the device into your design. Cypress provides customer access to a wide range of
information, including technical documentation, schematic diagrams, product bill of materials, PCB layout information, and software
updates. Customers can acquire technical documentation and software from the Cypress Support Community website
(https://community.cypress.com/).
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CYW20706
Document History Page
Document Title: CYW20706 Bluetooth SoC for Embedded Wireless Devices
Document Number: 002-19479
47
Revision
ECN
Orig. of
Change
Submission
Date
Description of Change
**
5852544
SGUP
08/31/2017
New Datasheet
*A
6084990
CHSI
03/01/2018
Changed Broadcom Serial Communications (BSC) to I2C throughout the
document.
Updated Figure 1. Functional Block Diagram.
Added Table 2. Bluetooth Features.
Updated 1.4. Collaborative Coexistence and 1.5. Global Coexistence Interface.
Table 2: Removed 6M Baud rate.
Removed Common Baud rate Examples Table.
Added a Note: “Subject to support in WICED Studio” in 1.11. Triac Control
section.
Added a Note: “Subjected to driver support in WICED” in 1.13. Infrared Modulator
section.
Updated Acronyms and Abbreviations section.
Updated Table 5. Crystal Strapping Options for the 49-Pin FBGA Package.
Removed “Preliminary” status from datasheet.
*B
6105228
MILI
03/21/2018
Updated Minimum, Typical and Maximum values of Table 22, Table 23, Table 24
and Table 25.
Document Number: 002-19479 Rev. *B
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CYW20706
Sales, Solutions, and Legal Information
Worldwide Sales and Design Support
Cypress maintains a worldwide network of offices, solution centers, manufacturer’s representatives, and distributors. To find the office
closest to you, visit us at Cypress Locations.
PSoC® Solutions
Products
Arm® Cortex® Microcontrollers
Automotive
Clocks & Buffers
Interface
Internet of Things
Memory
cypress.com/arm
cypress.com/automotive
cypress.com/clocks
cypress.com/interface
cypress.com/iot
cypress.com/memory
Microcontrollers
cypress.com/mcu
PSoC
cypress.com/psoc
Power Management ICs
Touch Sensing
USB Controllers
Wireless Connectivity
PSoC 1 | PSoC 3 | PSoC 4 | PSoC 5LP | PSoC 6
Cypress Developer Community
Community | Projects | Video | Blogs | Training | Components
Technical Support
cypress.com/support
cypress.com/pmic
cypress.com/touch
cypress.com/usb
cypress.com/wireless
© Cypress Semiconductor Corporation, 2017-2018. This document is the property of Cypress Semiconductor Corporation and its subsidiaries, including Spansion LLC ("Cypress"). This document,
including any software or firmware included or referenced in this document ("Software"), is owned by Cypress under the intellectual property laws and treaties of the United States and other countries
worldwide. Cypress reserves all rights under such laws and treaties and does not, except as specifically stated in this paragraph, grant any license under its patents, copyrights, trademarks, or other
intellectual property rights. If the Software is not accompanied by a license agreement and you do not otherwise have a written agreement with Cypress governing the use of the Software, then Cypress
hereby grants you a personal, non-exclusive, nontransferable license (without the right to sublicense) (1) under its copyright rights in the Software (a) for Software provided in source code form, to
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(either directly or indirectly through resellers and distributors), solely for use on Cypress hardware product units, and (2) under those claims of Cypress's patents that are infringed by the Software (as
provided by Cypress, unmodified) to make, use, distribute, and import the Software solely for use with Cypress hardware products. Any other use, reproduction, modification, translation, or compilation
of the Software is prohibited.
TO THE EXTENT PERMITTED BY APPLICABLE LAW, CYPRESS MAKES NO WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, WITH REGARD TO THIS DOCUMENT OR ANY SOFTWARE
OR ACCOMPANYING HARDWARE, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. No computing
device can be absolutely secure. Therefore, despite security measures implemented in Cypress hardware or software products, Cypress does not assume any liability arising out of any security breach,
such as unauthorized access to or use of a Cypress product. In addition, the products described in these materials may contain design defects or errors known as errata which may cause the product
to deviate from published specifications. To the extent permitted by applicable law, Cypress reserves the right to make changes to this document without further notice. Cypress does not assume any
liability arising out of the application or use of any product or circuit described in this document. Any information provided in this document, including any sample design information or programming
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information and any resulting product. Cypress products are not designed, intended, or authorized for use as critical components in systems designed or intended for the operation of weapons, weapons
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management, or other uses where the failure of the device or system could cause personal injury, death, or property damage ("Unintended Uses"). A critical component is any component of a device
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shall and hereby do release Cypress from any claim, damage, or other liability arising from or related to all Unintended Uses of Cypress products. You shall indemnify and hold Cypress harmless from
and against all claims, costs, damages, and other liabilities, including claims for personal injury or death, arising from or related to any Unintended Uses of Cypress products.
Cypress, the Cypress logo, Spansion, the Spansion logo, and combinations thereof, WICED, PSoC, CapSense, EZ-USB, F-RAM, and Traveo are trademarks or registered trademarks of Cypress in
the United States and other countries. For a more complete list of Cypress trademarks, visit cypress.com. Other names and brands may be claimed as property of their respective owners.
Document No. 002-19479 Rev. *B
Revised March 21, 2018
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