SP5301
Universal Serial Bus Transceiver
• Utilizes digital inputs and outputs to transmit and
receive USB cable data
• Supports 12Mbps "Full Speed" and 1.5Mbps "Low
Speed" serial data transmission
• Compatible with the VHDL "Serial
Interface Engine" from USB developer's
conference
• Hysteresis on VP and VM Function)
• Ease of use for PC peripheral expansion
• Protocol flexibility for mixed-mode
isochronous data transfers and
asynchronous messaging
• Available in 14 pin TSSOP package
• Rail to Rail receiver common mode input range,
20mV typical receiver sensitivity
• Low Power; 20 nA in SUSPEND mode
• Enhanced version of the PDIUSBP11
DESCRIPTION
The SP5301 is a half-duplex Universal Serial Bus (USB) differential transceiver that interfaces
with the USB Serial Interface Engine (SIE). The SP5301 is designed to allow 3.3V or 5.0V
standard and programmable logic to interface with the physical layer of the Universal Bus.
The USB protocol can support multiple connections for up to 127 physical devices composed
of many diverse functions. It is capable of transmitting and receiving serial data at both full
speed (12Mbps) and low speed (1.5Mbps) data rates. Implementation of the Serial Interface
Engine along with the USB transceiver allow the designer to make flexible USB compatible
devices with widely available logic components. The SP5301 is specifically geared towards
low-cost USB solutions for the PC peripheral market.
Exar Corporation 48720 Kato Road, Fremont CA, 94538 • 510-668-7017 • www.exar.com
SP5301_100_081710
ABSOLUTE MAXIMUM RATINGS
These are stress ratings only and functional operation of the device
at these ratings or any other above those indicated in the operation
sections of the specifications below is not implied. Exposure to absolute maximum rating conditions for extended periods of time may
affect reliability and cause permanent damage to the device.
VCC............................................................................-0.5V to +6.5V
IGND, ICC (DC VCC or GND current).......................................±100mA
Input Current and Voltages:
IIK (DC input diode current at VI < 0)................................-50mA
VI (DC input voltage, Note 1).................................-0.5 to +6.5V
VI/O (DC input voltage range, I/O).................-0.5V to VCC + 0.5V
Output Currents and Voltages:
IOK (DC output diode current where
VO > VCC or VO < 0).......................................................±50mA
VO (DC output voltage),
Note 1.....................................................-0.5V to (VCC + 0.5V)
IO (DC output source or sink current for
VP/VM/RCV/RERR/RSEO pins,VO = 0 to VCC)............±15mA
IO (DC output source or sink current for
D+/D- pins, VO = 0 to VCC.............................................±50mA
Storage Temperature............................................-65°C to +150°C
Ptot (Power dissipation per package)...............................1000mW
NOTE 1: The input and output voltage ratings may be exceeded if the input and output clamp current ratings are
observed.
OE
SUSPND
RCV
RERR
RSEO
VP/VM
D+/D-
Co m m en ts
0
0
0
0
0
0
Active
Driving
0
1
0
0
0
0
Active
Driving
1
0
Active
Active
Active
Active
HI-Z
Receiving
1
1
0
Active
Active
Active
HI-Z
Low Power State
Function Table
Figure 1. Block Diagram
Exar Corporation 48720 Kato Road, Fremont CA, 94538 • 510-668-7017 • www.exar.com
SP5301_100_081710
ELECTRICAL CHARACTERISTICS
Unless otherwise noted, the following specifications apply for Vcc = +3.0V to +3.6V with Tamb = 0°C to +70°C.
Typical values apply at Vcc = +3.3V and Tamb = 25°C.
PARAMETERS
MIN.
TYP.
MAX.
UNITS
CONDITIONS
DC Characteristics
HIGH level input, VIH
2.0
LOW level input, VIL
V
Note 2
0.8
V
Note 2
HIGH level Driver output
impedance, RDH
28
35
43
Ω
Note 3, Note 4
LOW level Driver output
impedance, RDL
28
35
43
Ω
Note 3, Note 4
D+/D- High output level, VOH
2.8
V
RL of 15k to Ground
V
RL of 1.5k to 3.6V
V
Vcc = 3.0V, IO = 6mA, Note 2
V
Vcc = 3.0V, IO = 4mA, Note 2
D+/D- Low output level, VOL
0.3
Logic High level output, VOH
2.2
Logic High level output, VOH
2.4
Logic High level output, VOH
2.8
Logic Low level output, VOL
2.7
0.3
Logic Low level output, VOL
Logic Low level output, VOL
Receiver Differential Input
Threshold, VDI
-90
Receiver Common Mode
Range, VCM
0
+/-20
V
Vcc = 3.0V, IO = 200µA, Note 2
0.8
V
Vcc = 3.0V, IO = 6mA, Note 2
0.4
V
Vcc = 3.0V, IO = 4mA, Note 2
Vcc = 3.0V, IO = 200µA, Note 2
0.2
V
+90
mV
Vcc
V
µA
Vcc = 3.6V, VI = Vcc or GND, IO = 0
Quiescent supply current, ICCQ
450
800
Supply current in SUSPND, ICCS
Common Mode Voltage 0V to Vcc
0.02
1.0
µA
Vcc = 3.6V, VI = Vcc or GND, IO = 0
Active Supply current
(Full Speed), ICCFS
6
14
mA
Vcc = 3.6V, CL = 50pF,
1,0,1,0....input
Active Supply current
(Low Speed), ICCLS
3
8
mA
Vcc = 3.6V, CL = 350pF,
1,0,1,0....input
+/-0.1
+/-5
µA
Vcc = 3.6V, VI = 5.5V or GND, not
for I/O pins
+/-10
µA
VL = VI or VIL, VO = Vcc or GND,
Note 3
20
pF
Input Leakage current, II
Tri-State output OFF-state
current, IOZ
Transceiver Capacitance
(D+/D-), CIN
Note 2: All signals except D+ and D-.
Note 3: See "Load D+ and D-" diagram for testing details.
Note 4: This value includes a 22Ω external resistor.
Exar Corporation 48720 Kato Road, Fremont CA, 94538 • 510-668-7017 • www.exar.com
SP5301_100_081710
ELECTRICAL CHARACTERISTICS
Unless otherwise noted, the following specifications apply for Vcc = +3.0V to +3.6V with Tamb = 0°C to +70°C.
Typical values apply at Vcc = +3.3V and Tamb = 25°C.
PARAMETERS
MIN.
TYP.
MAX.
UNITS
CONDITIONS
VPO/VMO to D+/D- Delay, Full
Speed, tPLH
4
11
15
ns
Figure 2, 9
VPO/VMO to D+/D- Delay, Full
Speed, tPHL
4
11
15
ns
Figure 2, 9
D+/D- Rise Time, Full Speed,
tRISE
4
5.6
20
ns
Figure 3, 9
D+/D- Fall Time, Full Speed,
tFALL
4
5.6
20
ns
Figure 3, 9
VPO/VMO to D+/D- Delay, Low
Speed, tPLH
30
80
200
ns
Figure 2, 9
VPO/VMO to D+/D- Delay, Low
Speed, tPHL
30
80
200
ns
Figure 2, 9
D+/D- Rise Time, Low Speed,
tRISE
75
110
250
ns
Figure 3, 9
D+/D- Fall Time, Low Speed,
tFALL
75
110
250
ns
Figure 3, 9
D+/D- to RCV Delay, tPLH
8.0
16
ns
Figure 4, 7
D+/D- to RCV Delay, tPHL
8.0
16
ns
Figure 4, 7
D+/D- to VP/VM Delay, tPLH
6.0
10
ns
Figure 2, 7
D+/D- to VP/VM Delay, tPHL
6.0
10
ns
Figure 2, 7
D+/D- to RERR Delay, tPLH
14
20
ns
Figure 7, Note 5
D+/D- to RERR Delay, tPHL
14
20
ns
Figure 7, Note 5
D+/D- to RSEO Delay, tPLH
11
16
ns
Figure 7, Note 5
D+/D- to RSEO Delay, tPHL
11
16
ns
Figure 7, Note 5
OE to D+/D-, tPHZ
11
20
ns
Figure 5, 8
OE to D+/D-, tPZH
12
20
ns
Figure 5, 8
OE to D+/D-, tPLZ
11
20
ns
Figure 5, 8
12
20
ns
Figure 5, 8
ns
Figure6, 9
AC Characteristics
OE to D+/D-, tPZL
Setup for SPEED, tSU
D+/D- Crossover point, VCR
0
1.3
2.0
V
Note 5: Delay defined from midpoint of input to midpoint of output, with other input at static (High or Low).
Exar Corporation 48720 Kato Road, Fremont CA, 94538 • 510-668-7017 • www.exar.com
SP5301_100_081710
DESCRIPTION
The SP5301 is a half-duplex Universal
Serial Bus (USB) differential transceiver
that interfaces with the VHDL Serial
Interface Engine (SIE) from the USB
developer's conference. The SP5301 is
designed to allow digital logic to communicate with the physical layer of the
Universal Bus.
THEORY OF OPERATION
The USB protocol can support multiple
connections for up to 127 physical
devices composed of many diverse functions. This makes the SP5301 an ideal
solution for multidrop applications. This
lower protocol overhead results in high
bus utilization. An isochronous workload
may utilize the entire USB bus
bandwidth. The USB protocol reflects a
robust capability of dynamic insertion and
removal of devices identified in user
perceived real-time. This PC plug and
play quality preserves the marketable
synergy with the PC industry, being a
simple protocol to implement and
integrate into existing operating systems.
The USB is a cable bus that supports data
exchange between a host computer and
a wide range of peripherals. Attached
peripherals share USB bandwidth through
a host scheduled token based protocol.
The USB allows peripherals to be atached,
configured, used, and detached while the
host and other peripherals are in
operation. This is referred to as dynamic,
or hot, attachment and removal. USB
attributes include lower costs, hot plugand-play with dynamic attach-detach
capabilities, ease of design and use,
multiple peripherals, guaranteed latency,
and guaranteed bandwidth.
The SP5301 contains a differential driver
and a differential receiver in a half-duplex
configuration. The driver is enabled by
the OE pin. If OE is asserted LOW,
the driver is active and the D- and D+
pins drive USB signals. The differential
receiver is also controlled by the OE pin.
If OE is HIGH, while SUSPEND is LOW,
the receiver is active and the driver is in
tri-state. In this receive mode, the D- and
D+ pins are now receiving USB signals.
The USB is specified to be an industry
standard extension to the PC architecture
with a focus on Computer Telephony
Integration (CTI), consumer, and productivity applications. The architecture of the
USB protocol can ease the expansion
of PC peripherals, provide a low-cost
solution that supports tranfer rates up to
12Mbps, and can fully support real-time
data for voice, audio, and compressed
video.
The typical driver output voltage swing for
D- and D+ of the SP5301 will be less than
+0.3V for the LOW state and greater than
+2.8V for the HIGH state.
The SP5301 is a USB differential
interface with very high receiver input
sensitivity. This makes data virtually
immune to noise on the USB pipeline.
The ±90mV minimum receiver input
sensitivity of the SP5301 ensures
recovery of even severely attenuated
signals.
The USB protocol can provide protocol
flexibility for mixed-mode isochronous data
transfers and asynchrounous messaging.
Guaranteed bandwidth and low latencies
are appropriate for many telephony and
audio applications. A 12Mbps bus covers
the mid-speed and low-speed data ranges. Typically, mid-speed data types are
isochronous and low-speed data comes
from interactive devices. Isochronous communication can only be used by full speed
devices.
Exar Corporation 48720 Kato Road, Fremont CA, 94538 • 510-668-7017 • www.exar.com
SP5301_100_081710
The SP5301 incorporates a receive error
circuit. This error circuit outputs CMOS
signals on the receive error pin (RERR)
and the receive single ended zero pin
(RSE0) under specific conditions from the
USB bus. When OE is asserted LOW, it
enables the USB driver to transmit data
on the D+ and D- output pins. The receive
error circuit is disabled in this condition
and both RERR and RSE0 are forced
low. The receive error circuit is activated
in receive mode when OE is HIGH. The
receive error circuit will signal an error
state when both D+ and D- are HIGH by
forcing RERR HIGH. The receiver error
circuit will signal a single ended zero
when both D+ and D- are LOW by forcing RSE0 HIGH. A single ended zero is
a valid state and is used to signal an end
of packet (EOP) in signal transmission.
(CAUTION: Since both RERR and RSE0
are CMOS outputs, care must be taken
to ensure that RERR and RSE0 are NOT
connected to VCC or GND.)
The SP5301 can transmit and receive
serial data at both full speed, 12Mbps,
and at low speed, 1.5Mbps, data rates. At
full speed, the active supply current of the
SP5301 is 6mA. In the suspend state, the
supply current is typically 20nA.
Full speed USB applications include
ISDN, PBX, POTS, sampled analog
devices, audio, printers, and telephony
designs. Low speed USB applications
include locator devices, keyboards,
mouse, tablets, light pens, stylus, game
peripherals, virtual reality peripherals, and
monitor configurations. The USB protocol
provides full support for the real-time data
for voice, audio, and compressed video.
The SP5301 is specifically geared
towards low-cost USB solutions for the
PC peripheral markets
Waveforms 1 and 2 below show device
behavior in transmit mode, at both low
and full speed, with the D+/D- pins driving
the load specified in figure 9.
The SP5301 has a suspend input pin
(SUSPND) which enables a low power
state while the USB bus is inactive. When
SUSPND is asserted HIGH or SP5301
is in transmit mode (OE is LOW), the
receive data pin (RCV) will be forced
LOW.
Waveform 1. D+/D- Transmit Mode, low speed
Waveform 2. D+/D- Transmit Mode, full speed
Exar Corporation 48720 Kato Road, Fremont CA, 94538 • 510-668-7017 • www.exar.com
SP5301_100_081710
PINOUT
Pin 6 — SUSPND — Suspend. This
input pin provides a low power state for
the SP5301 while the USB bus is inactive.
While the SUSPND pin is asserted HIGH,
it will drive RCV pin LOW.
Pin 7 — GND — Ground.
Pin 8 — RSEO — Receive Single
Ended Zero. This CMOS level output pin
is forced HIGH when both D+ and D- are
LOW to signal the end of packet (EOP)
in signal transmission. CAUTION: Since
RSEO is a CMOS output, care must be
taken to ensure that RSEO is NOT connected to VCC or GND.
PIN ASSIGNMENTS
Pin 9 — SPEED — Speed. Edge rate
control. This input pin determines edge
rates, where a logic HIGH designates
edge rates for "full speed" and logic LOW
designates edge rates for "low speed."
Pin 1 — RERR — Receive Error. This
CMOS level output pin is forced HIGH
when both D+ and D- are HIGH to signal
an error state. CAUTION: Since RERR is
a CMOS output, care must be taken to
ensure that RERR is NOT connected to
VCC or GND.
Pin 10, 11 — D-, D+ — Data-, Data+.
These differential data bus I/O pins conform to the Universal Serial Bus standard.
Pin 2 — OE — Output Enable Not.
When asserted LOW, this input pin
enables the driver to transmit data on the
bus. When HIGH, the receiver is active
and the driver outputs are in tri-state.
Pin 12, 13 — VPO, VMO — These are
the logic inputs to the differential driver,
typically connected to the outputs of the
serial Interface Engine (SIE).
Pin 3 — RCV — Receive data. This is a
CMOS level output pin from D+ and D-,
typically connected to the inputs of the
USB Serial Interface Engine (SIE).
Pin 4, 5 — VP, VM — Gated version of
D+ and D-. Used to detect single ended
zero (SEO), error conditions, and interconnect speed. These pins have CMOS level
outputs.
VP
VM
0
0
SEO
0
1
Low Speed
1
0
Full Speed
1
1
Error
VPO
VMO
0
0
RESULT
SEO
0
1
Logic Low
1
0
Logic High
1
1
Undefined
Pin 14 — Vcc — +3.0V to +3.6V power
supply
RESULT
Exar Corporation 48720 Kato Road, Fremont CA, 94538 • 510-668-7017 • www.exar.com
SP5301_100_081710
AC WAVEFORMS
2.7V
tRISE
50%
50%
INPUT
tFALL
GND
VOH
tPHL
tPLH
90%
VOH
10%
OUTPUT
50%
90%
10%
VOL
50%
VOL
Figure 2. D+/D- to VP/VM or VPO/VMO to
D+/D-
D+
Figure 3. Rise and Fall Times
2.0V
VCR
2.7V
VCR
OE
D-
1.5V
OV
1.0V
tPZH
tPZL
tPHL
tPLH
1.5V
tPHZ
tPLZ
VOH
50%
VOH
50%
D+/D-
VY
50%
VOL
VOL
Figure 4. D+/D- to RCV
50%
VX
Figure 5. OE to D+/D-
NOTE: VX = VOL + 0.3V, VY = VOH - 0.3V, Vcc ≥ +3.0V, VOL and VOH are the typical output
voltage drops that occur with the output load.
Exar Corporation 48720 Kato Road, Fremont CA, 94538 • 510-668-7017 • www.exar.com
SP5301_100_081710
AC WAVEFORMS (continued)
2.7V
SPEED
GND
Test Point
50%
50%
D.U.T
tSU
tSU
25pF
2.7V
VCR
D+/D-
VCR
GND
Figure 6. Setup for Speed
Figure 7. Load for VM, VP, RERR, RSEO
and RCV
TEST
D-/LS
Test Point
D.U.T
22Ω
500Ω
50pF
SW1
Close
D+/LS
Open
D-/FS
Open
D+/FS
Close
V CC
Test Point
V
D.U.T
22Ω
15KΩ
SW1
1.5KΩ
CL
V = 0V for t PZH and tPHZ
V = V CC for t PZL and tPLZ
C L = 50pF, Full Speed
CL = 350pF, Low Speed
Figure 8. Load for Enable and Disable
Times
Figure 9. Load for D+/D-
Exar Corporation 48720 Kato Road, Fremont CA, 94538 • 510-668-7017 • www.exar.com
SP5301_100_081710
AC WAVEFORMS (continued)
Figure 10. Receiver Delay VS. Common
Mode Voltage (with peak to peak overdrive voltage as a parameter)
Figure 11. Transmitter Rise and Fall Time
VS. Capacitive load (full speed)
2.0V
D+
50%
50%
D-
tPLH
D-
1.0V
50%
RERR
tPLH
1.0V
50%
RSEO
Figure 13. D+/D- to RSEO Delay
Figure 12. D+/D- to RERR Delay
2.0V
D+
Exar Corporation 48720 Kato Road, Fremont CA, 94538 • 510-668-7017 • www.exar.com
10
SP5301_100_081710
Exar Corporation 48720 Kato Road, Fremont CA, 94538 • 510-668-7017 • www.exar.com
11
SP5301_100_081710
ORDERING INFORMATION
Model
Temperature Range
Package Types
SP5301CY-L......................................................................... 0°C to +70°C..............................................................................................14-pin TSSOP
SP5301CY-L/TR................................................................... 0°C to +70°C..............................................................................................14-pin TSSOP
Note: /TR = Tape and Reel
revision history
DATE
REVISION
--
--
08/17/10
1.0.0
DESCRIPTION
Legacy Sipex Datasheet
Convert to Exar Format. Update ordering information as a result of discontinued
NSOIC package option.
Notice
EXAR Corporation reserves the right to make changes to any products contained in this publication in order to improve design, performance or reliability. EXAR Corporation assumes no representation that the circuits are free of patent infringement. Charts and schedules contained herein are only for
illustration purposes and may vary depending upon a user's specific application. While the information in this publication has been carefully checked;
no responsibility, however, is assumed for inaccuracies.
EXAR Corporation does not recommend the use of any of its products in life support applications where the failure or malfunction of the product can
reasonably be expected to cause failure of the life support system or to significantly affect its safety or effectiveness. Products are not authorized for
use in such applications unless EXAR Corporation receives, in writting, assurances to its satisfaction that: (a) the risk of injury or damage has been
minimized ; (b) the user assumes all such risks; (c) potential liability of EXAR Corporation is adequately protected under the circumstances.
Copyright 2010 EXAR Corporation
Datasheet August 2010
Send your Interface technical inquiry with technical details to: uarttechsupport@exar.com
Reproduction, in part or whole, without the prior written consent of EXAR Corporation is prohibited.
Exar Corporation 48720 Kato Road, Fremont CA, 94538 • 510-668-7017 • www.exar.com
12
SP5301_100_081710