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RF22




Overview

The RF22 802.11 b/g/n (1x1 single spatial stream) WLAN CMOS radio frequency IC (RFIC) implements all required transceiver functions for complying with full single-band 802.11 b/g/n (1x1 single spatial stream) PHY layer specifications.

Produced with Taiwan Semiconductor Manufacturing Company (TSMC) 0.18um CMOS technology, the RF22 includes a complete RF transceiver, PA, Tx-Rx antenna diversity switch, and crystal oscillator. Customized for low power consumption, the RF22 is offered in a QFN-56 package, and features a low external component count.

Target Applications

The RF22 is part of DSP Group™'s line of solutions utilized in the following applications:
  • Infotainment center
  • Portable multimedia DECT/Wi-Fi base station with Wi-Fi backhaul and Linux OS support
  • Internet radio
  • Wireless digital picture frame (DPF)
  • Wi-Fi VoIP phone
Highlights
  • Single band – 2.4GHz
  • 802.11 b/g/n (mobile station) standards support
  • Integrated front end (FE)
    • PA with up to 20dBm xX output power
    • Tx-Rx antenna switch
  • Integrated Rx channel filters
  • Integrated PLL synthesizer, including VCO and PLL loop filter
  • Integrated “trimmable” XTAL oscillator
  • Single-ended RF interfaces
  • IQ mismatch mechanism
  • Integrated voltage regulators
 

Product Graphics