BK2421

BK2421 Low Power High Performance 2.4 GHz GFSK Transceiver Features Pin Assignments  2400-2483.5 MHz ISM band operation  Support 1 and 2 Mbps air data rate  Programmable output power (-40dBm to 5dBm)  Low power consumption  Tolerate +/- 60ppm 16 MHz crystal  Variable payload length from 1 to 32bytes  Automatic packet processing  6 data pipes for 1:6 star networks  1.9V to 3.6V power supply  4-pin SPI interface with maximum 8 MHz clock rate  Compact 20-pin 4x4 mm QFN package Applications  Wireless PC peripherals  Wireless mice and keyboards  Wireless gamepads  Wireless audio  VOIP and wireless headsets Block Diagram VSS CDVDD VDD 20 19 18 VSS IREF 17 16 CE 1 CSN 2 SCK 3 MOSI 4 MISO 5 BK2421 15 VDD 14 VSS 13 RFN 12 RFP 11 VDDPA 6 7 8 9 10 IRQ VDD VSS XTALP XTALN  Remote controls  Consumer electronics  Home automation  Toys  Personal health and entertainment RFP RFN FM Demodulator Data Slicer Integrated TDD RF T...