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Wireless RF
FSK Transceivers

Semtech SX1212

Ultra Low Power (3mA RX) RF Transceiver 310-510MHz

The SX1212 is a low cost single-chip transceiver operating in the frequency ranges from 300MHz to 510MHz. The SX1212 is optimized for very low power consumption (3mA in receiver mode).

Remote Keyless Entry Reference Design


 

Overview

Features

  • Low Rx power consumption: 3mA
  • Low Tx power consumption: 25 mA @ +10 dBm
  • Good reception sensitivity: down to -104 dBm at 25 kb/s in FSK, -110 dBm at 2kb/s in OOK
  • Programmable RF output power: up to +12.5 dBm in 8 steps
  • Packet handling feature with data whitening and automatic CRC generation
  • RSSI (Received Signal Strength Indicator)
  • Bit rates up to 150 kb/s, NRZ coding
  • On-chip frequency synthesizer
  • FSK and OOK modulation
  • Incoming sync word recognition
  • Built-in Bit-Synchronizer for incoming data and clock synchronization and recovery
  • 5 x 5 mm TQFN package
  • Optimized Circuit Configuration for Low-cost applications

Applications

  • Wireless alarm and security systems
  • Wireless sensor networks
  • Automated Meter Reading
  • Home and building automation
  • Industrial monitoring and control
  • Remote Wireless Control
  • Active RFID PHY

Packaging

TQFN32

Order Codes

  • SX1212IWLTRT: Transceiver Ultra-Low Power Integrated 300-510MHz Transceiver
  • SX1230-13RKEA433: Turnkey Remote Keyless Entry Reference Design Kit with SX1230 transmitter, SX1211 or SX1212 Transceiver, KEELOQ® code-hopping encryption software and Microchip’s PIC16F631 or PIC16F677 8-bit MCU

Block Diagram

Click diagram to enlarge

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