4460CPCE27E169S

S i 4 4 6 4 / 6 3 / 6 1/60 H I G H - P ERFORMANCE , L O W -C U R R E N T T RANSCEIVER Features     Smart metering (802.15.4g & MBus) Remote control Home security and alarm Telemetry Garage and gate openers 1       Remote keyless entry Home automation Industrial control Sensor networks Health monitors Electronic shelf labels Description XOUT 20 19 18 17 16 RXp 2 Applications  SDN XIN  GND  Pin Assignments 15 nSEL RXn 3 14 SDI GND PAD TX 4 13 SDO NC 5 12 SCLK 6 7 8 9 10 11 nIRQ GPIO1  GPIO0  GPIO2  VDD  Power supply = 1.8 to 3.6 V Excellent selectivity performance 60 dB adjacent channel 75 dB blocking at 1 MHz Antenna diversity and T/R switch control Highly configurable packet handler TX and RX 64 byte FIFOs Auto frequency control (AFC) Automatic gain control (AGC) Low BOM Low battery detector Temperature sensor 20-Pin QFN package IEEE 802.15.4g compliant FCC Part 90 Mask D, FCC part 15.247, 15,231, 15,249, ARIB T-108, T-96, T-67, RCR STD-30, China regulatory  ETSI Class-I Operation with SAW GPIO3  Frequency range = 119–1050 MHz  Receive sensitivity = –126 dBm  Modulation (G)FSK, 4(G)FSK, (G)MSK OOK  Max output power  +20 dBm (Si4464/63)  +16 dBm (Si4461)  +13 dBm (Si4460)  PA support for +27 or +30 dBm  Low active power consumption  10/13 mA RX  18 mA TX at +10 dBm (Si4460)  Ultra low current powerdown modes 30 nA shutdown, 50 nA standby  Data rate = 100 bps to 1 Mbps Fast wake and hop times TXRamp  VDD  Patents pending Silicon Laboratories' Si446x devices are high-performance, low-current transceivers covering the sub-GHz frequency bands from 119 to 1050 MHz. The radios are part of the EZRadioPRO® family, which includes a complete line of transmitters, receivers, and transceivers covering a wide range of applications. All parts offer outstanding sensitivity of –126 dBm while achieving extremely low active and standby current consumption. The Si4463/61/60 offers frequency coverage in all major bands. The Si4464 offers frequency coverage in bands not covered by Si4463/61/60. Typically, these are non-standard frequencies or licensed frequency bands. The Si446x includes optimal phase noise, blocking, and selectivity performance for narrow band and licensed band applications, such as FCC Part90 and 169 MHz wireless Mbus. The 60 dB adjacent channel selectivity with 12.5 kHz channel spacing ensures robust receive operation in harsh RF conditions, which is particularly important for narrow band operation. The Si4464/63 offers exceptional output power of up to +20 dBm with outstanding TX efficiency. The high output power and sensitivity results in an industry-leading link budget of 146 dB allowing extended ranges and highly robust communication links. The Si4460 active mode TX current consumption of 18 mA at +10 dBm and RX current of 10 mA coupled with extremely low standby current and fast wake times ensure extended battery life in the most demanding applications. The Si4464/63 can achieve up to +27 dBm output power with built-in ramping control of a low-cost external FET. The devices can meet worldwide regulatory standards: FCC, ETSI, and ARIB. All devices are designed to be compliant with 802.15.4g and WMbus smart metering standards. The devices are highly flexible and can be configured via the Wireless Development Suite (WDS) available on the Silicon Labs web site. Rev 1.2 1/16 Copyright © 2016 by Silicon Laboratories Si4464/63/62/61/60 Si4464/63/61/60 Functional Block Diagram GPIO3 GPIO2 XIN XOUT Loop Filter PFD / CP VCO FBDIV TX DIV SDN RXN TX LO Gen Bootup OSC IF PKDET RF PKDET LNA PA PGA nSEL SDI SDO SCLK nIRQ LDOs Digital Logic POR LBD 32K LP OSC PA LDO 2 ADC PowerRamp Cntl VDD MODEM FIFO Packet Handler SPI Interface Controller RXP 30 MHz XO Frac-N Div TXRAMP VDD GPIO0 GPIO1 Product Freq. Range Max Output Power TX Current RX Current Narrow Band Support Image Cal Si4464 Banded 119–960 MHz +20 dBm 915 MHz: 85 mA 10.6/13.6 mA   Si4463 Major bands 142-1050 MHz +20 dBm 169 MHz: 70 mA 915 MHz: 85 mA 10/13 mA   Si4461 Major bands 142-1050 MHz +16 dBm +13 dBm: 29 mA +14 dBm: 33 mA 10/13 mA   Si4460 Major bands 142-1050 MHz +13 dBm +10 dBm: 18 mA +11 dBm: 20 mA 10/13 mA   Rev 1.2 Si4464/63/61/60 TABLE O F C ONTENTS Section Page 1. Electrical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 1.1. Definition of Test Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 2. Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 3. Controller Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 3.1. Serial Peripheral Interface (SPI) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 3.2. Fast Response Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19 3.3. Operating Modes and Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 3.4. Application Programming Interface (API) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 3.5. Interrupts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 3.6. GPIO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 4. Modulation and Hardware Configuration Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 4.1. MODEM_MOD_TYPE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 4.2. Modulation Types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 4.3. Hardware Configuration Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 4.4. Preamble Length . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 5. Internal Functional Blocks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 5.1. RX Chain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 5.2. RX Modem . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 5.3. Synthesizer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32 5.4. Transmitter (TX) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34 5.5. Crystal Oscillator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38 6. Data Handling and Packet Handler . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .39 6.1. RX and TX FIFOs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39 6.2. Packet Handler . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39 7. RX Modem Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41 8. Auxiliary Blocks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41 8.1. Wake-up Timer and 32 kHz Clock Source . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41 8.2. Low Duty Cycle Mode (Auto RX Wake-Up) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43 8.3. Temperature, Battery Voltage, and Auxiliary ADC . . . . . . . . . . . . . . . . . . . . . . . . . . 44 8.4. Low Battery Detector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .45 8.5. Antenna Diversity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45 9. Pin Descriptions: Si4464/63/61/60 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46 10. Ordering Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48 11. Package Outline: Si4464/63/61/60 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .49 12. PCB Land Pattern: Si4464/63/61/60 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51 13. Top Marking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .53 13.1. Si4464/63/61/60 Top Marking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53 13.2. Top Marking Explanation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53 Document Change List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .54 Contact Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .56 Rev 1.2 3 Si4464/63/61/60 1. Electrical Specifications Table 1. DC Characteristics1 Parameter Supply Voltage Range Symbol Min Typ Max Unit 1.8 3.3 3.6 V RC Oscillator, Main Digital Regulator, and Low Power Digital Regulator OFF — 30 — nA IStandby Register values maintained and RC oscillator/WUT OFF — 50 — nA ISleepRC RC Oscillator/WUT ON and all register values maintained, and all other blocks OFF — 900 — nA ISleepXO Sleep current using an external 32 kHz crystal.2 — 1.7 — µA ISensor Low battery detector ON, register values maintained, and all other blocks OFF — 1 — µA IReady Crystal Oscillator and Main Digital Regulator ON, all other blocks OFF — 1.8 — mA ITune_RX RX Tune, High Performance Mode — 7.2 — mA ITune_TX TX Tune, High Performance Mode — 8 — mA IRXH High Performance Mode — 13.7 — mA — 10.7 — mA +20 dBm output power, class-E match, 915 MHz, 3.3 V — 85 — mA +20 dBm output power, class-E match, 460 MHz, 3.3 V — 75 — mA +20 dBm output power, square-wave match, 169 MHz, 3.3 V — 70 — mA ITX_+16 +16 dBm output power, class-E match, 868 MHz, 3.3 V2 — 43 — mA ITX_+14 +14 dBm output power, Switched-current match, 868 MHz, 3.3 V2 — 37 — mA ITX_+13 +13 dBm output power, switched-current match, 868 MHz, 3.3 V2 — 29 — mA ITX_+10 +10 dBm output power, Class-E match, 868 MHz, 3.3 V2 — 18 — mA VDD Power Saving Modes IShutdown -LBD TUNE Mode Current RX Mode Current IRXL TX Mode Current (Si4464/63) TX Mode Current (Si4461) TX Mode Current (Si4460) Test Condition ITX_+20 Low Power Mode2 Notes: 1. All specifications guaranteed by production test unless otherwise noted. Production test conditions and max limits are listed in the "Production Test Conditions" section of "1.1. Definition of Test Conditions" on page 14. 2. Guaranteed by qualification. Qualification test conditions are listed in the “Qualification Test Conditions” section in "1.1. Definition of Test Conditions" on page 14. 4 Rev 1.2 Si4464/63/61/60 Table 2. Synthesizer AC Electrical Characteristics1 Parameter Synthesizer Frequency Range (Si4463/61/60) Synthesizer Frequency Range (Si4464) Synthesizer Frequency Resolution3 Symbol Test Condition FSYN FSYN Min Typ Max Unit 850 — 1050 MHz 420 — 525 MHz 284 — 350 MHz 142 — 175 MHz 705 — 960 MHz 353 — 639 MHz 177 — 319 MHz 119 — 159 MHz FRES-960 850–1050 MHz — 28.6 — Hz FRES-525 420–525 MHz — 14.3 — Hz FRES-350 283–350 MHz — 9.5 — Hz FRES-175 142–175 MHz — 4.7 — Hz FRES-960 705–960 MHz — 28.6 — Hz FRES-639 470–639 MHz — 19.1 — Hz FRES-479 353–479 MHz — 14.3 — Hz FRES-319 235–319 MHz — 9.5 — Hz FRES-239 177–239 MHz — 7.1 — Hz FRES-159 119–159 MHz — 4.7 — Hz Synthesizer Settling Time4 tLOCK Measured from exiting Ready mode with XOSC running to any frequency. Including VCO Calibration. — 50 — µs Phase Noise4 L(fM) F = 10 kHz, 460 MHz, High Perf Mode — –106 — dBc/Hz F = 100 kHz, 460 MHz, High Perf Mode — –110 — dBc/Hz F = 1 MHz, 460 MHz, High Perf Mode — –123 — dBc/Hz F = 10 MHz, 460 MHz, High Perf Mode — –130 — dBc/Hz Synthesizer Frequency Resolution (Si4464)3 Notes: 1. All specification guaranteed by production test unless otherwise noted. Production test conditions and max limits are listed in the “Production Test Conditions” section in "1.1. Definition of Test Conditions" on page 14. 2. For applications that use the major bands covered by Si4463/61/60, customers should use those parts instead of Si4464. 3. Default API setting for modulation deviation resolution is double the typical value specified. 4. Guaranteed by qualification. Qualification test conditions are listed in the "Qualification Test Conditions" section in "1.1. Definition of Test Conditions" on page 14. Rev 1.2 5 Si4464/63/61/60 Table 3. Receiver AC Electrical Characteristics1 Parameter RX Frequency Range (Si4463/61/60) RX Frequency Range (Si4464) Symbol Test Condition FRX FRX Min Typ Max Unit 850 — 1050 MHz 420 — 525 MHz 284 — 350 MHz 142 — 175 MHz 705 — 960 MHz 353 — 639 MHz 177 — 319 MHz 119 — 159 MHz Notes: 1. All specification guaranteed by production test unless otherwise noted. Production test conditions and max limits are listed in the "Production Test Conditions" section in "1.1. Definition of Test Conditions" on page 14. 2. For applications that use the major bands covered by Si4463/61/60, customers should use those parts instead of Si4464. 3. Guaranteed by qualification. BER is specified for the 450–470 MHz band. Qualification test conditions are listed in the "Qualification Test Conditions" section in "1.1. Definition of Test Conditions" on page 14. 4. For PER tests, 48 preamble symbols, 4 byte sync word, 10 byte payload and CRC-32 was used. PER and BER tested in the 450–470 MHz band. 5. Guaranteed by bench characterization. 6 Rev 1.2 Si4464/63/61/60 Table 3. Receiver AC Electrical Characteristics1 (Continued) Parameter RX Sensitivity Symbol Test Condition Min Typ Max Unit PRX_0.5 (BER < 0.1%) (500 bps, GFSK, BT = 0.5, f = 250Hz)3 — –126 — dBm PRX_40 (BER < 0.1%) (40 kbps, GFSK, BT = 0.5, f = 20 kHz)3 — –110 — dBm PRX_100 (BER < 0.1%) (100 kbps, GFSK, BT = 0.5, f = 50 kHz)1 — –106 — dBm PRX_125 (BER < 0.1%) (125 kbps, GFSK, BT = 0.5, f = 62.5 kHz)3 — –105 — dBm PRX_500 (BER < 0.1%) (500 kbps, GFSK, BT = 0.5, f = 250 kHz)3 — –97 — dBm PRX_9.6 (PER 1%) (9.6 kbps, 4GFSK, BT = 0.5, f =  kHz)3,4 — –110 — dBm PRX_1M (PER 1%) (1 Mbps, 4GFSK, BT = 0.5, inner deviation = 83.3 kHz)3,4 — –88 — dBm PRX_OOK (BER < 0.1%, 4.8 kbps, 350 kHz BW, OOK, PN15 data)3 — –110 — dBm (BER < 0.1%, 40 kbps, 350 kHz BW, OOK, PN15 data)3 — –104 — dBm (BER < 0.1%, 120 kbps, 350 kHz BW, OOK, PN15 data)3 — –99 — dBm 1.1 — 850 kHz — 0 0.1 ppm — ±0.5 — dB RX Channel Bandwidth5 BW BER Variation vs Power Level3 PRX_RES RSSI Resolution RESRSSI Up to +5 dBm Input Level Notes: 1. All specification guaranteed by production test unless otherwise noted. Production test conditions and max limits are listed in the "Production Test Conditions" section in "1.1. Definition of Test Conditions" on page 14. 2. For applications that use the major bands covered by Si4463/61/60, customers should use those parts instead of Si4464. 3. Guaranteed by qualification. BER is specified for the 450–470 MHz band. Qualification test conditions are listed in the "Qualification Test Conditions" section in "1.1. Definition of Test Conditions" on page 14. 4. For PER tests, 48 preamble symbols, 4 byte sync word, 10 byte payload and CRC-32 was used. PER and BER tested in the 450–470 MHz band. 5. Guaranteed by bench characterization. Rev 1.2 7 Si4464/63/61/60 Table 3. Receiver AC Electrical Characteristics1 (Continued) Parameter Symbol Test Condition Min Typ Max Unit 1-Ch Offset Selectivity, 169 MHz3 C/I1-CH — –60 — dB 1-Ch Offset Selectivity, 450 MHz3 C/I1-CH — –58 — dB 1-Ch Offset Selectivity, 868 / 915 MHz3 C/I1-CH Desired Ref Signal 3 dB above sensitivity, BER < 0.1%. Interferer is CW, and desired is modulated with 2.4 kbps F = 1.2 kHz GFSK with BT = 0.5, RX channel BW = 4.8 kHz, channel spacing = 12.5 kHz — –53 — dB Blocking 1 MHz Offset3 1MBLOCK — –75 — dB Blocking 8 MHz Offset3 8MBLOCK Desired Ref Signal 3 dB above sensitivity, BER = 0.1%. Interferer is CW, and desired is modulated with 2.4 kbps, F = 1.2 kHz GFSK with BT = 0.5, RX channel BW = 4.8 kHz No image rejection calibration. Rejection at the image frequency. IF = 468 kHz — –84 — dB — 35 — dB With image rejection calibration in Si446x. Rejection at the image frequency. IF = 468 kHz — 55 — dB Image Rejection3 ImREJ Notes: 1. All specification guaranteed by production test unless otherwise noted. Production test conditions and max limits are listed in the "Production Test Conditions" section in "1.1. Definition of Test Conditions" on page 14. 2. For applications that use the major bands covered by Si4463/61/60, customers should use those parts instead of Si4464. 3. Guaranteed by qualification. BER is specified for the 450–470 MHz band. Qualification test conditions are listed in the "Qualification Test Conditions" section in "1.1. Definition of Test Conditions" on page 14. 4. For PER tests, 48 preamble symbols, 4 byte sync word, 10 byte payload and CRC-32 was used. PER and BER tested in the 450–470 MHz band. 5. Guaranteed by bench characterization. 8 Rev 1.2 Si4464/63/61/60 Table 4. Transmitter AC Electrical Characteristics1 Parameter Symbol Test Condition TX Frequency Range (Si4463/61/60) Min Typ Max Unit 850 — 1050 MHz 420 — 525 MHz 284 — 350 MHz 142 — 175 MHz 705 — 960 MHz 353 — 639 MHz 177 — 319 MHz 119 — 159 MHz FTX TX Frequency Range (Si4464) FTX (G)FSK Data Rate3,4 DRFSK 0.1 — 500 kbps 4(G)FSK Data Rate3,4 DR4FSK 0.2 — 1000 kbps OOK Data Rate3,4 DROOK 0.1 — 120 kbps Modulation Deviation Range3 Modulation Deviation Range (Si4464)3 f960 850–1050 MHz — 1.5 — MHz f525 420–525 MHz — 750 — kHz f350 283–350 MHz — 500 — kHz f175 142–175 MHz — 250 — kHz f960 705–960 MHz — 1.5 — MHz f639 470–639 MHz — 1 — MHz f479 353–479 MHz — 750 — kHz f319 235–319 MHz — 500 — kHz f239 177–239 MHz — 375 — kHz f159 119–159 MHz — 250 — kHz Notes: 1. All specification guaranteed by production test unless otherwise noted. Production test conditions and max limits are listed in the "Production Test Conditions" section in "1.1. Definition of Test Conditions" on page 14. 2. For applications that use the major bands covered by Si4463/61/60, customers should use those parts instead of Si4464. 3. Guaranteed by qualification. Qualification test conditions are listed in the "Qualification Test Conditions" section in "1.1. Definition of Test Conditions" on page 14. 4. The maximum data rate is dependant on the XTAL frequency and is calculated as per the formula: Maximum Symbol Rate = Fxtal/60, where Fxtal is the XTAL frequency (typically 30 MHz). 5. Default API setting for modulation deviation resolution is double the typical value specified. 6. Output power is dependent on matching components and board layout. Rev 1.2 9 Si4464/63/61/60 Table 4. Transmitter AC Electrical Characteristics1 (Continued) Parameter Modulation Deviation Resolution2,5 Modulation Deviation Resolution (Si4464)3 Symbol Test Condition Min Typ Max Unit FRES-960 850–1050 MHz — 28.6 — Hz FRES-525 420–525 MHz — 14.3 — Hz FRES-350 283–350 MHz — 9.5 — Hz FRES-175 142–175 MHz — 4.7 — Hz FRES-960 705–960 MHz — 28.6 — Hz FRES-639 470–639 MHz — 19.1 — Hz FRES-479 353–479 MHz — 14.3 — Hz FRES-319 235–319 MHz — 9.5 — Hz FRES-239 177–239 MHz — 7.1 — Hz FRES-159 119–159 MHz — 4.7 — Hz Output Power Range (Si4464/63)6 PTX –20 — +20 dBm Output Power Range (Si4461)6 PTX61 –40 — +16 dBm Output Power Range (Si4460)6 PTX60 –40 — +13 dBm TX RF Output Steps3 PRF_OUT Using switched current match within 6 dB of max power — 0.1 — dB TX RF Output Level3 Variation vs. Temperature PRF_TEMP –40 to +85 C — 1 — dB TX RF Output Level Variation vs. Frequency3 PRF_FREQ Measured across 902–928 MHz — 0.5 — dB B*T Gaussian Filtering Bandwith Time Product — 0.5 — Transmit Modulation Filtering3 Notes: 1. All specification guaranteed by production test unless otherwise noted. Production test conditions and max limits are listed in the "Production Test Conditions" section in "1.1. Definition of Test Conditions" on page 14. 2. For applications that use the major bands covered by Si4463/61/60, customers should use those parts instead of Si4464. 3. Guaranteed by qualification. Qualification test conditions are listed in the "Qualification Test Conditions" section in "1.1. Definition of Test Conditions" on page 14. 4. The maximum data rate is dependant on the XTAL frequency and is calculated as per the formula: Maximum Symbol Rate = Fxtal/60, where Fxtal is the XTAL frequency (typically 30 MHz). 5. Default API setting for modulation deviation resolution is double the typical value specified. 6. Output power is dependent on matching components and board layout. 10 Rev 1.2 Si4464/63/61/60 Table 5. Auxiliary Block Specifications1 Parameter Symbol Test Condition Min Typ Max Unit Temperature Sensor Sensitivity2 TSS — 4.5 — ADC Codes/ °C Low Battery Detector Resolution LBDRES — 50 — mV Microcontroller Clock Output Frequency Range3 Temperature Sensor Conversion2 XTAL Range4 30 MHz XTAL Start-Up Time 30 MHz XTAL Cap Resolution2 32 kHz XTAL Start-Up Time2 32 kHz Accuracy using Internal RC Oscillator2 POR Reset Time FMC Configurable to Fxtal or Fxtal divided by 2, 3, 7.5, 10, 15, or 30 where Fxtal is the reference XTAL frequency. In addition, 32.768 kHz is also supported. 32.768K — Fxtal Hz TEMPCT Programmable setting — 3 — ms 32 MHz XTALRange 25 — 250 — µs 30MRES — 70 — fF t32k — 2 — sec 32KRCRES — 2500 — ppm tPOR — — 5 ms t30M Using XTAL and board layout in reference design. Start-up time will vary with XTAL type and board layout. Notes: 1. All specification guaranteed by production test unless otherwise noted. Production test conditions and max limits are listed in the "Production Test Conditions" section in "1.1. Definition of Test Conditions" on page 14. 2. Guaranteed by qualification. Qualification test conditions are listed in the "Qualification Test Conditions" section in "1.1. Definition of Test Conditions" on page 14. 3. Microcontroller clock frequency tested in production at 1 MHz, 30 MHz and 32.768 kHz. Other frequencies tested in bench characterization. 4. XTAL Range tested in production using an external clock source (similar to using a TCXO). Rev 1.2 11 Si4464/63/61/60 Table 6. Digital IO Specifications (GPIO_x, SCLK, SDO, SDI, nSEL, nIRQ, SDN)1 Parameter Rise Time 2,3 Fall Time3,4 Symbol Test Condition Min Typ Max Unit TRISE 0.1 x VDD to 0.9 x VDD, CL = 10 pF, DRV = HH — 2.3 — ns TFALL 0.9 x VDD to 0.1 x VDD, CL = 10 pF, DRV = HH — 2 — ns Input Capacitance CIN — 2 — pF Logic High Level Input Voltage VIH VDD x 0.7 — — V Logic Low Level Input Voltage VIL — — VDD x 0.3 V Input Current IIN 0 3.3 V. When Vdd < 3.3 V, the Vhi will be closely following the Vdd, and ramping time will be smaller also. Vlo = 0 V when NO current needed to be sunk into TXRAMP pin. If 10uA need to be sunk into the chip, Vlo will be 10 µA x 10k = 100 mV. Number Command Summary 0x2200 PA_MODE 0x2201 PA_PWR_LVL 0x2202 PA_BIAS_CLKDUTY Adjust TX power in coarse steps and optimizes for different match configurations. 0x2203 PA_TC Changes the ramp up/down time of the PA. Sets PA type. Adjust TX power in fine steps. 5.4.1. Si4464/63: +20 dBm PA The +20 dBm configuration utilizes a class-E matching configuration. Typical performance for the 900 MHz band for output power steps, voltage, and temperature are shown in Figures 10–12. The output power is changed in 128 steps through PA_PWR_LVL API. For detailed matching values, BOM, and performance at other frequencies, refer to the PA Matching application note. TX Power vs. PA_PWR_LVL TX Power(dBm) 25 20 15 10 5 0 -5 -10 -15 -20 -25 -30 -35 0 10 20 30 40 50 60 70 80 90 100 110 120 PA_PWR_LVL Figure 10. +20 dBm TX Power vs. PA_PWR_LVL Rev 1.2 35 Si4464/63/61/60 TX Power vs. PA_PWR_LVL TX Power(dBm) 25 20 15 10 5 0 -5 -10 -15 -20 -25 -30 -35 0 10 20 30 40 50 60 70 80 90 100 110 120 PA_PWR_LVL Figure 11. +20 dBm TX Power vs. VDD TX Power vs Temp TX Power (dBm) 20.5 20 19.5 19 18.5 18 -40 -30 -20 -10 0 10 20 30 40 50 60 Temperature (C) Figure 12. +20 dBm TX Power vs. Temp 36 Rev 1.2 70 80 Si4464/63/61/60 5.4.2. Si4461 +16 dBm PA The Si4461 PA can utilize different matches to optimize the performance for 16, 14, 13 dBm, or a lower power. A class-E match is recommended for 16 dBm to maximize the efficiency and battery life. For 13 and 14 dBm, a switched current match is recommended to provide optimal performance over VDD and temperature variation. Typical performance for the 900 MHz band for output power steps, voltage, and temperature are shown in Figures 13 and 14. The output power is changed in 128 steps through the PA_PWR_LVL API. For detailed matching values, BOM, and performance at other frequencies, refer to “AN627: Si4460/61 Low-Power PA Matching. Figure 13. +13 dBm TX Power vs. PA_PWR_LVL Figure 14. +13 dBm TX Power vs. Supply Voltage (VDD) Rev 1.2 37 Si4464/63/61/60 5.5. Crystal Oscillator The Si446x includes an integrated crystal oscillator with a fast start-up time of less than 250 µs. The design is differential with the required crystal load capacitance integrated on-chip to minimize the number of external components. By default, all that is required off-chip is the crystal. The default crystal is 30 MHz, but the circuit is designed to handle any XTAL from 25 to 32 MHz. If a crystal different than 30 MHz is used, the POWER_UP API boot command must be modified. The WDS calculator crystal frequency field must also be changed to reflect the frequency being used. The crystal load capacitance can be digitally programmed to accommodate crystals with various load capacitance requirements and to adjust the frequency of the crystal oscillator. The tuning of the crystal load capacitance is programmed through the GLOBAL_XO_TUNE API property. The total internal capacitance is 11 pF and is adjustable in 127 steps (70 fF/step). The crystal frequency adjustment can be used to compensate for crystal production tolerances. The frequency offset characteristics of the capacitor bank are demonstrated in Figure 15. Figure 15. Capacitor Bank Frequency Offset Characteristics Utilizing the on-chip temperature sensor and suitable control software, the temperature dependency of the crystal can be canceled. A TCXO or external signal source can easily be used in place of a conventional XTAL and should be connected to the XIN pin. The incoming clock signal is recommended to have a peak-to-peak swing in the range of 600 mV to 1.4 V and ac-coupled to the XIN pin. If the peak-to-peak swing of the TCXO exceeds 1.4 V peak-to-peak, then dc coupling to the XIN pin should be used. The maximum allowed swing on XIN is 1.8 V peak-to-peak. The XO capacitor bank should be set to 0 whenever an external drive is used on the XIN pin. In addition, the POWER_UP command should be invoked with the TCXO option whenever external drive is used. 38 Rev 1.2 Si4464/63/61/60 6. Data Handling and Packet Handler 6.1. RX and TX FIFOs Two 64-byte FIFOs are integrated into the chip, one for RX and one for TX, as shown in Figure 16. Writing to command Register 66h loads data into the TX FIFO, and reading from command Register 77h reads data from the RX FIFO. The TX FIFO has a threshold for when the FIFO is almost empty, which is set by the “TX_FIFO_EMPTY” property. An interrupt event occurs when the data in the TX FIFO reaches the almost empty threshold. If more data is not loaded into the FIFO, the chip automatically exits the TX state after the PACKET_SENT interrupt occurs. The RX FIFO has one programmable threshold, which is programmed by setting the “RX_FIFO_FULL” property. When the incoming RX data crosses the Almost Full Threshold, an interrupt will be generated to the microcontroller via the nIRQ pin. The microcontroller will then need to read the data from the RX FIFO. The RX Almost Full Threshold indication implies that the host can read at least the threshold number of bytes from the RX FIFO at that time. Both the TX and RX FIFOs may be cleared or reset with the “FIFO_RESET” command. RX FIFO TX FIFO RX FIFO Almost Full Threshold TX FIFO Almost Empty Threshold Figure 16. TX and RX FIFOs 6.2. Packet Handler Config 0, 2, o r 4 Bytes Con fig 0, 2, o r 4 Bytes Con fig 0, 2, o r 4 B ytes C RC Field 5 (op t) Field 5 (opt) Data C RC Field 4 (op t) Field 4 (opt) Data C RC Field 3 (op t) Field 3 (opt) Data Con fig C RC Field 2 (op t) 1-4 Bytes F ield 2 (o pt) Pkt Len gth or Data Field 1 Header or Data 1-255 Bytes C RC Field 1 (op t) Preamble Sync Word When using the FIFOs, automatic packet handling may be enabled for TX mode, RX mode, or both. The usual fields for network communication, such as preamble, synchronization word, headers, packet length, and CRC, can be configured to be automatically added to the data payload. The fields needed for packet generation normally change infrequently and can therefore be stored in registers. Automatically adding these fields to the data payload in TX mode and automatically checking them in RX mode greatly reduces the amount of communication between the microcontroller and Si446x. It also greatly reduces the required computational power of the microcontroller. The general packet structure is shown in Figure 17. Any or all of the fields can be enabled and checked by the internal packet handler. Con fig 0, 2, or 4 Bytes 0, 2, or 4 Bytes Figure 17. Packet Handler Structure Rev 1.2 39 Si4464/63/61/60 The fields are highly programmable and can be used to check any kind of pattern in a packet structure. The general functions of the packet handler include the following: Detection/validation of Preamble quality in RX mode (PREAMBLE_VALID signal) of Sync word in RX mode (SYNC_OK signal) Detection of valid packets in RX mode (PKT_VALID signal) Detection of CRC errors in RX mode (CRC_ERR signal) Data de-whitening and/or Manchester decoding (if enabled) in RX mode Match/Header checking in RX mode Storage of Data Field bytes into FIFO memory in RX mode Construction of Preamble field in TX mode Construction of Sync field in TX mode Construction of Data Field from FIFO memory in TX mode Construction of CRC field (if enabled) in TX mode Data whitening and/or Manchester encoding (if enabled) in TX mode For details on how to configure the packet handler, see “AN626: Packet Handler Operation for Si446x RFICs”. Detection 40 Rev 1.2 Si4464/63/61/60 7. RX Modem Configuration The Si446x can easily be configured for different data rate, deviation, frequency, etc. by using the WDS settings calculator, which generates an initialization file for use by the host MCU. 8. Auxiliary Blocks 8.1. Wake-up Timer and 32 kHz Clock Source The chip contains an integrated wake-up timer that can be used to periodically wake the chip from sleep mode. The wake-up timer runs from either the internal 32 kHz RC Oscillator, or from an external 32 kHz XTAL. The wake-up timer can be configured to run when in sleep mode. If WUT_EN = 1 in the GLOBAL_WUT_CONFIG property, prior to entering sleep mode, the wake-up timer will count for a time specified defined by the GLOBAL_WUT_R and GLOBAL_WUT_M properties. At the expiration of this period, an interrupt will be generated on the nIRQ pin if this interrupt is enabled in the INT_CTL_CHIP_ENABLE property. The microcontroller will then need to verify the interrupt by reading the chip interrupt status either via GET_INT_STATUS or a fast response register. The formula for calculating the Wake-Up Period is as follows: WUT_R 42 WUT = WUT_M  -----------------------------  ms  32 768 The RC oscillator frequency will change with temperature; so, a periodic recalibration is required. The RC oscillator is automatically calibrated during the POWER_UP command and exits from the Shutdown state. To enable the recalibration feature, CAL_EN must be set in the GLOBAL_WUT_CONFIG property, and the desired calibration period should be selected via WUT_CAL_PERIOD[2:0] in the same API property. During the calibration, the 32 kHz RC oscillator frequency is compared to the 30 MHz XTAL and then adjusted accordingly. The calibration needs to start the 30 MHz XTAL, which increases the average current consumption; so, a longer CAL_PERIOD results in a lower average current consumption. The 32 kHz XTAL accuracy is comprised of both the XTAL parameters and the internal circuit. The XTAL accuracy can be defined as the XTAL initial error + XTAL aging + XTAL temperature drift + detuning from the internal oscillator circuit. The error caused by the internal circuit is typically less than 10 ppm. Rev 1.2 41 Si4464/63/61/60 Table 15. WUT Specific Commands and Properties API Properties Description Requirements/Notes GLOBAL_WUT_CONFIG GLOBAL WUT configuration WUT_EN—Enable/disable wake up timer. WUT_LBD_EN—Enable/disable low battery detect measurement on WUT interval. WUT_LDC_EN: 0 = Disable low duty cycle operation. 1 = RX LDC operation treated as wake up START_RX WUT state is used 2 = TX LDC operation treated as wakeup START_TX WUT state is used CAL_EN—Enable calibration of the 32 kHz RC oscillator WUT_CAL_PERIOD[2:0]—Sets calibration period. GLOBAL_WUT_M_15_8 Sets HW WUT_M[15:8] WUT_M—Parameter to set the actual wakeup time. See equation above. GLOBAL_ WUT_M_7_0 Sets HW WUT_M[7:0] WUT_M—Parameter to set the actual wakeup time. See equation above. GLOBAL_WUT_R Sets WUT_R[4:0] Sets WUT_SLEEP to choose WUT state WUT_R—Parameter to set the actual wakeup time. See equation above. WUT_SLEEP: 0 = Go to ready state after WUT 1 = Go to sleep state after WUT GLOBAL_WUT_LDC Sets FW internal WUT_LDC WUT_LDC—Parameter to set the actual wakeup time. See equation in "8.2. Low Duty Cycle Mode (Auto RX Wake-Up)" on page 43. Table 16. WUT Related API Commands and Properties Command/Property Description Requirements/Notes WUT Interrupt Enable INT_CTL_ENABLE INT_CTL_CHIP_ENABLE Interrupt enable property CHIP_INT_STATUS_EN—Enables chip status interrupt. Chip interrupt enable property WUT_EN—Enables WUT interrupt. 32 kHz Clock Source Selection GLOBAL_CLK_CFG Clock configuration options CLK_32K_SEL[2:0]—Configuring the source of WUT. WUT Interrupt Output GPIO_PIN_CFG Host can enable interrupt on WUT expire GPIOx_MODE[5:0] = 14 and NIRQ_MODE[5:0] = 39. RX/TX Operation START_RX/TX 42 START RX/TX when wake up START = 1. timer expire Rev 1.2 Si4464/63/61/60 8.2. Low Duty Cycle Mode (Auto RX Wake-Up) The low duty cycle (LDC) mode is implemented to automatically wake-up the receiver to check if a valid signal is available or to enable the transmitter to send a packet. It allows low average current polling operation by the Si446x for which the wake-up timer (WUT) is used. RX and TX LDC operation must be set via the GLOBAL_WUT_CONFIG property when setting up the WUT. The LDC wake-up period is determined by the following formula: WUT_R 42 LDC = WUT_LDC  -----------------------------  ms  32 768 where the WUT_LDC parameter can be set by the GLOBAL_WUT_LDC property. The WUT period must be set in conjunction with the LDC mode duration; for the relevant API properties, see the wake-up timer (WUT) section. Figure 18. RX and TX LDC Sequences The basic operation of RX LDC mode is shown in Figure 19. The receiver periodically wakes itself up to work on RX_STATE during LDC mode duration. If a valid preamble is not detected, a receive error is detected, or an entire packet is not received, the receiver returns to the WUT state (i.e., ready or sleep) at the end of LDC mode duration and remains in that mode until the beginning of the next wake-up period. If a valid preamble or sync word is detected, the receiver delays the LDC mode duration to receive the entire packet. If a packet is not received during two LDC mode durations, the receiver returns to the WUT state at the last LDC mode duration until the beginning of the next wake-up period. Figure 19. Low Duty Cycle Mode for RX In TX LDC mode, the transmitter periodically wakes itself up to transmit a packet that is in the data buffer. If a packet has been transmitted, nIRQ goes low if the option is set in the INT_CTL_ENABLE property. After transmitting, the transmitter immediately returns to the WUT state and stays there until the next wake-up time expires. Rev 1.2 43 Si4464/63/61/60 8.3. Temperature, Battery Voltage, and Auxiliary ADC The Si446x family contains an integrated auxiliary ADC for measuring internal battery voltage, an internal temperature sensor, or an external component over a GPIO. The ADC utilizes a SAR architecture and achieves 11-bit resolution. The Effective Number of Bits (ENOB) is 9 bits. When measuring external components, the input voltage range is 1 V, and the conversion rate is between 300 Hz to 2.44 kHz. The ADC value is read by first sending the GET_ADC_READING command and enabling the inputs that are desired to be read: GPIO, battery, or temp. The temperature sensor accuracy at 25 °C is typically ±2 °C. Command Stream GET_ADC_READING Command 7 6 5 4 3 CMD 2 1 0x14 ADC_EN 0 0 0 ADC_CFG Reply TEMPERATURE_EN BATTERY_VOLTAGE_EN ADC_GPIO_EN ADC_GPIO_PIN[1:0] UDTIME[3:0] GPIO_ATT[3:0] Stream GET_ADC_READING Reply 7 6 5 4 3 CTS CTS[7:0] GPIO_ADC GPIO_ADC[15:8] GPIO_ADC GPIO_ADC[7:0] BATTERY_ADC BATTERY_ADC[15:8] BATTERY_ADC BATTERY_ADC[7:0] TEMP_ADC TEMP_ADC[15:8] TEMP_ADC TEMP_ADC[7:0] RESERVED Reserved RESERVED Reserved 2 1 Parameters TEMPERATURE_EN 0 = Do not perform ADC conversion of temperature. This will read 0 value in reply TEMPERATURE. 1 = Perform ADC conversion of temperature. This results in TEMP_ADC. Temp (°C) = TEMP_ADC[15:0] x 568/2560 – 297 BATTERY_VOLTAGE_EN 0 = Don't do ADC conversion of battery voltage, will read 0 value in reply BATTERY_ADC 1 = Do ADC conversion of battery voltage, results in BATTERY_ADC. Vbatt = 3*BATTERY_ADC/1280 ADC_GPIO_EN 0 = Don't do ADC conversion on GPIO, will read 0 value in reply 1 = Do ADC conversion of GPIO, results in GPIO_ADC. Vgpio = GPIO_ADC/GPIO_ADC_DIV where GPIO_ADC_DIV is defined by GPIO_ATT selection. ADC_GPIO_PIN[1:0] - Select GPIOx pin. The pin must be set as input. 0 = Measure voltage of GPIO0 1 = Measure voltage of GPIO1 2 = Measure voltage of GPIO2 3 = Measure voltage of GPIO3 UDTIME[7:4] - ADC conversion Time = SYS_CLK / 12 / 2^(UDTIME + 1). Defaults to 0xC if ADC_CFG is 0. 44 0 Rev 1.2 0 Si4464/63/61/60 Selecting shorter conversion times will result in lower ADC resolution and longer times will result in higher ADC resolution. GPIO_ATT[3:0] - Sets attenuation of gpio input voltage when vgpio measured. Defaults to 0xC if ADC_CFG is 0. 0x0 = ADC range 0 to 0.8V. GPIO_ADC_DIV = 2560 0x4 = ADC range 0 to 1.6V. GPIO_ADC_DIV = 1280 0x8 = ADC range 0 to 2.4V. GPIO_ADC_DIV = 853.33 0x9 = ADC range 0 to 3.6V. GPIO_ADC_DIV = 426.66 0xC = ADC range 0 to 3.2V. GPIO_ADC_DIV = 640 Response GPIO_ADC[15:0] - ADC value of voltage on GPIO - ADC value of battery voltage TEMP_ADC[15:0] - ADC value of temperature sensor voltage RESERVED[7:0] - RESERVED FOR FUTURE USE RESERVED[7:0] - RESERVED FOR FUTURE USE BATTERY_ADC[15:0] 8.4. Low Battery Detector The low battery detector (LBD) is enabled and utilized as part of the wake-up-timer (WUT). The LBD function is not available unless the WUT is enabled, but the host MCU can manually check the battery voltage anytime with the auxiliary ADC. The LBD function is enabled in the GLOBAL_WUT_CONFIG API property. The battery voltage will be compared against the threshold each time the WUT expires. The threshold for the LBD function is set in GLOBAL_LOW_BATT_THRESH. The threshold steps are in increments of 50 mV, ranging from a minimum of 1.5 V up to 3.05 V. The accuracy of the LBD is ±3%. The LBD notification can be configured as an interrupt on the nIRQ pin or enabled as a direct function on one of the GPIOs. 8.5. Antenna Diversity To mitigate the problem of frequency-selective fading due to multipath propagation, some transceiver systems use a scheme known as antenna diversity. In this scheme, two antennas are used. Each time the transceiver enters RX mode the receive signal strength from each antenna is evaluated. This evaluation process takes place during the preamble portion of the packet. The antenna with the strongest received signal is then used for the remainder of that RX packet. The same antenna will also be used for the next corresponding TX packet. This chip fully supports antenna diversity with an integrated antenna diversity control algorithm. The required signals needed to control an external SPDT RF switch (such as a PIN diode or GaAs switch) are available on the GPIOx pins. The operation of these GPIO signals is programmable to allow for different antenna diversity architectures and configurations. The antdiv[2:0] bits are found in the MODEM_ANT_DIV_CONTROL API property descriptions and enable the antenna diversity mode. The GPIO pins are capable of sourcing up to 5 mA of current; so, it may be used directly to forward-bias a PIN diode if desired. The antenna diversity algorithm will automatically toggle back and forth between the antennas until the packet starts to arrive. The recommended preamble length for optimal antenna selection is 8 bytes. Rev 1.2 45 Si4464/63/61/60 SDN 1 XOUT XIN GND GPIO2 GPIO3 9. Pin Descriptions: Si4464/63/61/60 20 19 18 17 16 RXp 2 15 nSEL RXn 3 14 SDI GND PAD TX 4 13 SDO Pin Pin Name 7 8 9 VDD GPIO0 10 11 nIRQ GPIO1 6 TXRamp 12 SCLK VDD NC 5 I/0 Description 1 SDN I Shutdown Input Pin. 0–VDD V digital input. SDN should be = 0 in all modes except Shutdown mode. When SDN = 1, the chip will be completely shut down, and the contents of the registers will be lost. 2 RXp I Differential RF Input Pins of the LNA. 3 RXn I See application schematic for example matching network. 4 TX O 5 NC 6 VDD VDD 7 TXRAMP O 8 VDD VDD 9 GPIO0 I/O General Purpose Digital I/O. 10 GPIO1 I/O May be configured through the registers to perform various functions including: Microcontroller Clock Output, FIFO status, POR, Wake-Up timer, Low Battery Detect, TRSW, AntDiversity control, etc. Transmit Output Pin. The PA output is an open-drain connection, so the L-C match must supply VDD (+3.3 VDC nominal) to this pin. No Connect. Not connected internally to any circuitry. +1.8 to +3.6 V Supply Voltage Input to Internal Regulators. The recommended VDD supply voltage is +3.3 V. Programmable Bias Output with Ramp Capability for External FET PA. See "5.4. Transmitter (TX)" on page 34. +1.8 to +3.6 V Supply Voltage Input to Internal Regulators. The recommended VDD supply voltage is +3.3 V. General Microcontroller Interrupt Status Output. 11 46 nIRQ O When the Si4463/61 exhibits any one of the interrupt events, the nIRQ pin will be set low = 0. The Microcontroller can then determine the state of the interrupt by reading the interrupt status. No external resistor pull-up is required, but it may be desirable if multiple interrupt lines are connected. Rev 1.2 Si4464/63/61/60 Pin Pin Name I/0 Description Serial Clock Input. 12 SCLK I 13 SDO O 0–VDD V digital input. This pin provides the serial data clock function for the 4-line serial data bus. Data is clocked into the Si4463/61 on positive edge transitions. 0–VDD V Digital Output. Provides a serial readback function of the internal control registers. Serial Data Input. 14 SDI I 0–VDD V digital input. This pin provides the serial data stream for the 4-line serial data bus. Serial Interface Select Input. 15 nSEL I 0–VDD V digital input. This pin provides the Select/Enable function for the 4-line serial data bus. Crystal Oscillator Output. 16 XOUT O 17 XIN I 18 GND GND 19 GPIO2 I/O General Purpose Digital I/O. I/O May be configured through the registers to perform various functions, including Microcontroller Clock Output, FIFO status, POR, Wake-Up timer, Low Battery Detect, TRSW, AntDiversity control, etc. GND The exposed metal paddle on the bottom of the Si446x supplies the RF and circuit ground(s) for the entire chip. It is very important that a good solder connection is made between this exposed metal paddle and the ground plane of the PCB underlying the Si446x. 20 PKG GPIO3 PADDLE_GND Connect to an external 25 to 32 MHz crystal, or leave floating when driving with an external source on XIN. Crystal Oscillator Input. Connect to an external 25 to 32 MHz crystal, or connect to an external source. Connect to PCB ground. Rev 1.2 47 Si4464/63/61/60 10. Ordering Information Part Number1,2 Description Package Type Si4464-Bxx-FM ISM EZRadioPRO Transceiver QFN-20 Pb-free –40 to 85 °C Si4463-Bxx-FM ISM EZRadioPRO Transceiver QFN-20 Pb-free –40 to 85 °C Si4461-Bxx-FM ISM EZRadioPRO Transceiver QFN-20 Pb-free –40 to 85 °C Si4460-Bxx-FM ISM EZRadioPRO Transceiver QFN-20 Pb-free –40 to 85 °C Notes: 1. Add an “(R)” at the end of the device part number to denote tape and reel option. 2. For Bxx, the first “x” indicates the ROM version, and the second “x” indicates the FW version in OTP. 48 Operating Temperature Rev 1.2 Si4464/63/61/60 11. Package Outline: Si4464/63/61/60 Figure 20 illustrates the package details for the Si446x. Table 17 lists the values for the dimensions shown in the illustration.   2X bbb C B A D D2 Pin 1 (Laser) e 20 20x L 1 E E2 2X aaa C A1 20x b ccc C ddd C A B eee C A SEATING PLANE A3 C Figure 20. 20-Pin Quad Flat No-Lead (QFN) Rev 1.2 49 Si4464/63/61/60 Table 17. Package Dimensions Dimension Min Nom Max A 0.80 0.85 0.90 A1 0.00 0.02 0.05 A3 b 0.20 REF 0.18 0.25 D D2 0.30 4.00 BSC 2.45 2.60 e 0.50 BSC E 4.00 BSC 2.75 E2 2.45 2.60 2.75 L 0.30 0.40 0.50 aaa 0.15 bbb 0.15 ccc 0.10 ddd 0.10 eee 0.08 Notes: 1. All dimensions are shown in millimeters (mm) unless otherwise noted. 2. Dimensioning and tolerancing per ANSI Y14.5M-1994. 3. This drawing conforms to the JEDEC Solid State Outline MO-220, Variation VGGD-8. 4. Recommended card reflow profile is per the JEDEC/IPC J-STD-020C specification for Small Body Components. 50 Rev 1.2 Si4464/63/61/60 12. PCB Land Pattern: Si4464/63/61/60 Figure 21 illustrates the PCB land pattern details for the Si446x. Table 18 lists the values for the dimensions shown in the illustration. Figure 21. PCB Land Pattern Rev 1.2 51 Si4464/63/61/60 Table 18. PCB Land Pattern Dimensions Symbol Millimeters Min Max C1 3.90 4.00 C2 3.90 4.00 E 0.50 REF X1 0.20 0.30 X2 2.55 2.65 Y1 0.65 0.75 Y2 2.55 2.65 Notes: General 1. All dimensions shown are in millimeters (mm) unless otherwise noted. 2. This land pattern design is based on IPC-7351 guidelines. Solder Mask Design 3. All metal pads are to be non-solder mask defined (NSMD). Clearance between the solder mask and the metal pad is to be 60 µm minimum, all the way around the pad. Stencil Design 4. A stainless steel, laser-cut and electro-polished stencil with trapezoidal walls should be used to assure good solder paste release. 5. The stencil thickness should be 0.125 mm (5 mils). 6. The ratio of stencil aperture to land pad size should be 1:1 for the perimeter pads. 7. A 2x2 array of 1.10 x 1.10 mm openings on 1.30 mm pitch should be used for the center ground pad. Card Assembly 8. A No-Clean, Type-3 solder paste is recommended. 9. The recommended card reflow profile is per the JEDEC/IPC J-STD-020 specification for small body components. 52 Rev 1.2 Si4464/63/61/60 13. Top Marking 13.1. Si4464/63/61/60 Top Marking 13.2. Top Marking Explanation Mark Method YAG Laser Line 1 Marking Part Number 44641B = Si4464 Rev 1B1 44631B = Si4463 Rev 1B1 44611B = Si4461 Rev 1B1 44601B = Si4460 Rev 1B1 Line 2 Marking TTTTT = Internal Code Internal tracking code.2 Line 3 Marking YY = Year WW = Workweek Assigned by the Assembly House. Corresponds to the last significant digit of the year and workweek of the mold date. Notes: 1. The first letter after the part number is part of the ROM revision. The last letter indicates the firmware revision. 2. The first letter of this line is part of the ROM revision. Rev 1.2 53 Si4464/63/61/60 DOCUMENT CHANGE LIST Revision 0.4 to Revision 1.0 Updated Table 3 on page 6. Updated Table 6 on page 12.  Updated Figure 13 on page 37.  Replaced Table 12 on page 28.  Updated "11. Package Outline: Si4464/63/61/60" on page 49.   Revision 1.0 to Revision 1.1                Updated RX Mode Current in Table 1 on page 4. Updated Synthesizer Frequency Range in Table 2 on page 5. Updated RX Frequency Range and RX Sensitivity in Table 3 on page 6. Updated TX Frequency Range in Table 4 on page 9. Updated Temperature Sensor Sensitivity in Table 5 on page 11. Updated Drive Strength in Table 6 on page 12. Updated Figure 1 and Figure 2 on page 16. Updated "3.2. Fast Response Registers" on page 19. Updated Table 9 on page 20. Updated Figure 9 on page 29. Updated "5.2.4. Received Signal Strength Indicator" on page 31. Updated "5.4. Transmitter (TX)" on page 34. Updated "8.3. Temperature, Battery Voltage, and Auxiliary ADC" on page 44. Updated "9. Pin Descriptions: Si4464/63/61/60" on page 46. Updated "11. Package Outline: Si4464/63/61/60" on page 49. Revision 1.1 to Revision 1.2       54 Updated all instances of frequency range for Si4463/61/60 and Si4464, primarily in the electrical specifications Tables. Removed emissions and harmonics specifications from the electrical specifications. Updated Tables 13 and 14 to reflect frequency coverage. Updated sections 5.2.3 and 5.2.4. Updated “13.1. Si4464/63/61/60 Top Marking”. Updated “9. Pin Descriptions: Si4464/63/61/60” for pins 16 and 17. Rev 1.2 Si4464/63/61/60 NOTES: Rev 1.2 55 Si4464/63/61/60 CONTACT INFORMATION Silicon Laboratories Inc. 400 West Cesar Chavez Austin, TX 78701 Tel: 1+(512) 416-8500 Fax: 1+(512) 416-9669 Toll Free: 1+(877) 444-3032 Please visit the Silicon Labs Technical Support web page: https://www.silabs.com/support/pages/contacttechnicalsupport.aspx and register to submit a technical support request. Patent Notice Silicon Labs invests in research and development to help our customers differentiate in the market with innovative low-power, small size, analog-intensive mixed-signal solutions. Silicon Labs' extensive patent portfolio is a testament to our unique approach and world-class engineering team. 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