Si4430/31/32 RF Transceivers

Si4430/31/32 devices remain in production, but are not recommended for new designs. For new designs, please use Si4460/1/3/4 RF Transceivers instead.
The Si4430/31/32 ISM band transceiver ICs are members of the EZRadioPRO® product family. While retaining all the attractive features of the earlier products such as high integration, low cost, flexibility, low BOM and easy design-in, these transceivers target more sophisticated applications and offer several enhanced parameters and features including continuous frequency coverage from 240 - 960 MHz and output power up to +20 dBm.
The ISM band transceiver ICs include built-in features such as wake-up timer, low battery detector, transmit and receive data FIFOs, power-on reset circuit and general-purpose digital I/Os. The ICs incorporate a high-performance ADC and digital modem, which perform demodulation, filtering and packet handling in the digital domain, making the ICs ideal for configuration to mutiple applications. These features simplify the system design and allow the use of cost-effective microcontrollers.
 
 

Features

  • Fully integrated: low BOM, easy design-in, no production alignments
  • Wide range of operating conditions: supply voltage, temperature, frequency
  • Antenna diversity & TR switch control
  • Auto-frequency calibration (AFC)
  • Ultra low power sleep mode
  • Digital RSSI
  • On-chip crystal tuning
  • Green lead free package
  • Wake-on-radio
  • Configurable packet structure
  • Preamble quality detector
  • TX & RX 64 byte FIFOs
  • Low battery detector
  • Low power consumption
 
 

Applications

​​​
Si4430/31/32 devices are not recommended for new designs. Please use Si4460/1/3/4 RF Transceivers instead.

Documentation

Expand AllCollapse All

Data Sheet (1)

DescriptionVersionUpdatedSize
Si4430/Si4431/Si4432 ISM Transceiver
1.112/14/2009818 kB

Data Short (1)

DescriptionVersionUpdatedSize
Si4432/31/30 ISM Transceiver Data Short
2.20.092/20/200993 kB

Errata (4)

DescriptionVersionUpdatedSize
Si4430 Rev A0 Errata
06.29.097/6/200949 kB
Si4431 Rev A0 Errata
06.29.097/6/200948 kB
Si4432 Rev V2 Errata
0521096/1/200967 kB
Si4x3x Rev B Errata
04.17.125/6/2010127 kB

User Guides (6)

DescriptionVersionUpdatedSize
EZLink™ Fast Prototyping Modules—User Guide
0.111/25/20081753 kB
EZMac-EZHop User's Guide
3.26/18/2012575 kB
RF-to-USB Reference Design 2 User's Guide
0.25/13/20111293 kB
SDBC-DK3 User Guide
0.48/25/20091078 kB
WDS Chip Configurator User Guide
0.24/9/20101416 kB
Wireless M-Bus Demonstration Kit User's Guide
0.12/22/2010329 kB

Quick Start Guide (2)

DescriptionVersionUpdatedSize
Energy Harvesting-RD Quick-Start Guide
0.25/25/2011208 kB
Wireless M-Bus Quick Start Guide
0.12/16/201069 kB

Application Notes (34)

DescriptionVersionUpdatedSize
AN361: Wireless M-Bus Implementation using EZRadioPRO Devices
1.010/8/2009115 kB
AN379: Antenna Diversity with EZRadioPRO®
0.22/15/2010928 kB
AN414: EZRadioPRO® Layout Design Guide
0.211/30/20101326 kB
AN415: EZRadioPRO® Programming Guide
0.77/13/2010504 kB
AN417: Si4x3x Family and Crystal Oscillators
0.26/22/2009169 kB
AN419: ARIB STD-T67 Narrow-Band 426/429 MHz Measured on the Si4431-A0
0.32/9/2011328 kB
AN427: EZRadioPRO™ Si433x & Si443x RX LNA matching
0.16/25/2009636 kB
AN429: Using the DC-DC Converter on the F9xx Series MCU for Single Battery Operation with the EZRadioPRO® RF Devices
0.18/5/2009112 kB
AN432: RX BER Measurement on EZRadioPRO with a Looped Bit Sequence
0.24/19/2010232 kB
AN435: Si4032/4432 PA Matching
0.22/11/2011396 kB
AN436: Si4030/4031/4430/4431 PA Matching
0.24/4/20111774 kB
AN437: Si4432 RF Performance and FCC Compliance Test Results
0.310/31/2012172 kB
AN439: EZRadioPRO RF Testing Quick-Start Guide
0.110/27/2009514 kB
AN440: Si4430/31/32 Register Descriptions
0.77/1/2013300 kB
AN445: Si4431 RF Performance and ETSI Compliance Test Results
0.34/12/20111098 kB
AN451: Wireless M-Bus Software Implementation
0.12/22/201083 kB
AN452: Wireless M-Bus Stack Programmer's Guide
0.12/22/2010110 kB
AN457: Transitioning Si4432 from Rev V2 to Rev B
0.21/26/201062 kB
AN458: Transitioning Si4430/31 from Rev A0 to Rev B
0.21/7/201144 kB
AN459: Si4430-B Measurement Results
0.49/2/20101507 kB
AN463: Raw Data Mode with EZRadioPRO
0.212/13/20101200 kB
AN514: Using the EZLink™ Reference Design to Create a Two-Channel PWM Motor Control Circuit
0.16/23/2010534 kB
AN537: FIFO Mode, Direct Mode, and Packet Handler Operation for EZRadioPro
0.34/30/2013553 kB
AN539: EZMac®PRO Overview
0.19/7/201060 kB
AN545: EZRadioPRO and 802.15.4D Compliance
0.110/26/20101068 kB
AN548: Si4432 Compliance Test Results in Chinese AMR Band
0.15/20/201196 kB
AN548: Si4432 Compliance Test Results in Chinese AMR Band (Chinese)
0.15/20/2011148 kB
AN550: EZMac®PRO Programming Guide
0.110/18/2010115 kB
AN585: EZRadioPro Low Duty Cycle Mode Operation
0.19/23/2011176 kB
AN588: Energy Harvesting Reference Design User's Guide
0.25/18/2011666 kB
AN592: Data Whitening Demo Code
0.111/30/201141 kB
AN593: Temperature Sensor Usage and Frequency Calibration for the Si4x3x
0.13/24/201195 kB
AN657: Radio Evaluation Demo for EZRadioPRO®
0.112/20/2011578 kB
AN799: Transitioning from the Si443x to the Si446x
0.212/4/2013133 kB

White Papers (3)

PCN (6)

​​​
Si4430/31/32 devices are not recommended for new designs. Please use Si4460/1/3/4 RF Transceivers instead.

Design Resources

 
 

Si4432/31/30 Test Cards

Part Number Type Freq. Antenna Configuration Price (USD) Buy Download
4432-T-B1 A 915
Si4432
915 MHz Two (2) antennas mounted at 90°; used to evaluate the embedded Antenna Diversity algorithm
4432-T-B1 B 915
Si4432
915 MHz Separate TX and RX designed for lab testing (not recommended for range testing) $70 Si4432 TRX
4432-T-B1 C 915
Si4432
915 MHz Single antenna implemented with RF switch $65 Si4432 TRX
4432-T-B1 C 868
Si4432
868 MHz Single antenna implemented with RF switch
4432-T-B1 B 470
Si4432
470 MHz Separate TX and RX designed for lab testing (not recommended for range testing) $70 Si4432 TRX
4432-T-B1 C 470
Si4432
470 MHz Single antenna implemented with RF switch $65 Si4432 TRX
4432-T-B1 D 470
Si4432
470 MHz Single antenna implemented without RF switch
4431-T-B1 B 868
Si4431
868 MHz Separate TX and RX designed for lab testing (not recommended for range testing) $65 Si4431 TRX
4431-T-B1 D 868
Si4431
868 MHz Single antenna implemented without RF switch $60 Si4431 TRX
4431-T-B1 B 434
Si4431
434 MHz Separate TX and RX designed for lab testing (not recommended for range testing) $65 Si4431 TRX
4431-T-B1 D 434
Si4431
470 MHz Single antenna implemented without RF switch $60 Single Antenna 4431 TRX Test Card High Band
4430-T-B1 B 950
Si4430
950 MHz Separate TX and RX designed for lab testing (not recommended for range testing)
4430-T-B1 D 950
Si4430
950 MHz Single antenna implemented without RF switch $50 Si4430 TRX
 
 

Design Tools

Expand AllCollapse All

Software (21)

Schematics/Layout (23)

Example Code (2)

DescriptionVersionUpdatedSize
AN415_EZRadioPRO_Sample_Code
1.04/11/20111053 kB
AN463 Deglitch Reference Code
0.212/14/201028 kB

Training (1)

DescriptionVersionUpdatedSize
EZMacPRO Overview
2341 kB
​​​
Si4430/31/32 devices are not recommended for new designs. Please use Si4460/1/3/4 RF Transceivers instead.
Product Matrix
Zoom
Part NumberOutput Power RangeRX Current+11/+20 dBm TX Current+13 dBm TX CurrentPackage TypeFSK/GFSKDescriptionOOKFrequency Range2/4.8 Sensitivity (dBm)
Si4430-8 to +1318.5 mA—/—30 mAQFN20256 kbpsTRX40 kbps900 - 960 MHz-121/-110
Si4431-8 to +1318.5 mA—/—30 mAQFN20256 kbpsTRX40 kbps240 - 930 MHz-121/-110
Si4432+1 to +2018.5 mA35 mA/85 mAQFN20256 kbpsTRX40 kbps240 - 930 MHz-121/-110
​​The Si4432 has configurable output power from +11 to +20 dBm and is ideal for frequency hopping systems where maximum range is desired. The Si4430/31 ICs have configurable output power from -8 to +13 dBm. The Si4431 and Si4432 comply with FCC and ETSI requirements when used in any of the standard ISM Bands. A 30 MHz crystal and supply bypass capacitors are the only necessary external components, making the devices ideal for high-volume production in applications where size and cost are important.

Overview

Product Matrix

Documentation

Tools

Education

Technology

More Info