'GFSK' related articles 1

  1. 2009/06/13 A7121 - 2.4GHz GFSK Transceiver
General Description
A7121 is a monolithic CMOS integrated circuit for wireless applications in 2.4GHz ISM band. The device is provided in a 32-lead plastic QFN5X5 packaging and is designed as a complete GFSK transceiver up to 3Mbps data rate. The chip features a fully programmable frequency synthesizer with integrated VCO circuitry.

Features
*2400MHz~2484MHz worldwide license free frequency band
*Up to 79 selectable channels
*2.2 V – 2.8 V voltage supply
*Programmable output power up to 0dBm
*Channel switching time < 200us
*1 or 3Mbps high speed data rate
*-20 ºC to 85 ºC operating temperature
*-87dBm sensitivity
*Direct / FIFO mode operation
*Modem interface for low speed, low cost microcontroller
*Low IF architecture with few external components

Typical Applications
*Wireless digital audio
*Wireless Mouse and Keyboard
*2.4GHz ISM Band Communication System
*Wireless game pad
*Wireless toy

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