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SILICON LABS  SI4431-B1-FM  RF TRANSCEIVER, 240-930MHZ, QFN-20

SILICON LABS SI4431-B1-FM
Technical Data Sheet (799.18KB) EN See all Technical Docs

Image is for illustrative purposes only. Please refer to product description.

Product Overview

The SI4431-B1-FM is a highly integrated single-chip Wireless ISM Transceiver with the extremely low receive sensitivity (-121dBm) coupled with industry leading 20dBm output power ensures extended range and improved link performance. Built-in antenna diversity and support for frequency hopping can be used to further extend range and enhance performance. It offers advanced radio features including continuous frequency coverage from 240 to 960MHz in 156 or 312Hz steps allowing precise tuning control. The digital receive architecture features a high-performance ADC and DSP based modem which performs demodulation, filtering and packet handling for increased flexibility and performance. The direct digital transmit modulation and automatic PA power ramping ensure precise transmit modulation and reduced spectral spreading ensuring compliance with global regulations including FCC, ETSI, ARIB and 802.15.4d regulations.
  • Low power consumption
  • FSK, GFSK and OOK modulation
  • Ultra low power shutdown mode
  • Digital RSSI
  • Wake-up timer
  • Auto frequency calibration (AFC)
  • Power ON-reset (POR)
  • Antenna diversity and TR switch control
  • Configurable packet handler
  • Preamble detector
  • Low battery detector
  • Integrated voltage regulator
  • Frequency hopping capability
  • On-chip crystal tuning
  • Low BOM

Product Information

Frequency Min:
240MHz
Frequency Max:
930MHz
RF / IF Modulation:
FSK, GFSK, OOK
Data Rate:
256Kbps
Receiving Current:
18.5mA
RF IC Case Style:
QFN
No. of Pins:
20Pins
Supply Voltage Min:
1.8V
Supply Voltage Max:
3.6V
Transmitting Current:
30mA
Output Power (dBm):
13dBm
Sensitivity dBm:
-101dBm
RF Transceiver Applications:
Automatic Meter Reading, Wireless Sensor Networks, Home and Building Automation
Operating Temperature Min:
-40°C
Operating Temperature Max:
85°C
Packaging:
Cut Tape
Product Range:
-
MSL:
MSL 1 - Unlimited
SVHC:
To Be Advised

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Applications

  • Signal Processing;
  • Security;
  • Communications & Networking;
  • System Monitoring;
  • Computers & Computer Peripherals;
  • Automation & Process Control;
  • Sensing & Instrumentation

Legislation and Environmental

Moisture Sensitivity Level:
MSL 1 - Unlimited
Country of Origin:
Malaysia

Country in which last significant manufacturing process was carried out

RoHS Compliant:
Yes
Tariff No:
85423990
Weight (kg):
.000037