TH71221 Series 27 to 930 MHz 115 kbps SMT FSK/AM/ASK Transceiver - QFN-32

Mfr Part#: TH71221ELQ-BAA-000-TU
Mounting Method:  Surface Mount
Package Style:  QFN-32
Packaging:  TUBE
Std Packaging Qty:  73



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$4.54 USD (each)
5+ $4.54


Qty in Stock : 1,010
Factory Stock : N/A
Factory Lead-Time: N/A
Min. Order Qty: 5
Multiple of: 1
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Product Highlight

  • Frequency Range: 27 to 930 MHz
  • Data Rate: 115 kbps
  • Output Power: 10 dBm
  • Supply Voltage: 2.2 to 5.5 V
  • Sensitivity: -107 dBm

The TH71221ELQ-BAA-000-TU is a single chip FSK/FM/ASK Transceiver IC with operating frequency of 300 to 930 MHz, available in surface mount QFN-32 package.

It is designed to operate in low-power multichannel programmable or single-channel stand-alone, half-duplex data transmission systems.


  • Single chip solution with only a few external components
  • Stand-alone fixed-frequency user mode
  • Programmable multi-channel user mode
  • Low current consumption in active mode and very low standby current
  • PLL-stabilized RF VCO (LO) with internal varactor diode
  • Lock detect output in programmable user mode
  • On-chip AFC for extended input frequency acceptance range
  • 3wire bus serial control interface
  • FSK/ASK mode selection
  • FSK for digital data or FM for analog signal reception
  • RSSI output for signal strength indication and ASK reception
  • Peak detector for ASK detection
  • Switchable LNA gain for improved dynamic range
  • Automatic PA turn-on after PLL lock
  • ASK modulation achieved by PA on/off keying
  • 32-pin Quad Flat Lead Package (QFN)


  • General bi-directional half duplex digital data
  • RF signaling or analog signal communication
  • Tire Pressure Monitoring Systems (TPMS)
  • Remote Keyless Entry (RKE)
  • Low-power telemetry systems
  • Alarm and security systems
  • Wireless access control
  • Garage door openers
  • Networking solutions
  • Active RFID tags
  • Remote controls
  • Home and building automation

View the TH7122 series of Transceiver ICs

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