RDA6220E R DA6220E T RANSCEIVER FOR GSM/EDGE W IRELESS C OMMUNICATION (Version 0.1) Features Single chips solution: RDA6220E Multi-band GSM cellular systems: z GSM 850 z E-GSM 900 z DCS 1800 z PCS 1900 Integrated LDO Integrated GSM/EDGE transceiver including the following: z Digital low-IF receiver z Direct modulation transmitter z Frequency synthesizer Integrated VCO, loop filters, etc. Two reference oscillator options z 26MHz VC-TCXO z 26MHz Crystal Support digital AFC Universal analog baseband interface and DigRF V1.12 digital interface GPRS/EDGE multi slot up to class 33/38 RF FEM control 3.3 to 4.2 V operation CMOS process technology Lead-free Applications Multiband GSM/GPRS/EDGE digital cellular handsets Multiband GSM/GPRS/EDGE wireless data modems Description The RDA6220E transceiver is a complete RF front end for GSM/GPRS/EDGE wireless communication. It has an integrated power manager unit, can be directed connected to battery power supply. The receive section interfaces between the RF band-select SAW filter and the baseband IC. The RDA6220E receiver employs a digital low-IF architecture, and support both universal analog baseband interfaces and DigRF 1.12 digital interface. In GSM GMSK modulation mode, the transmit section of RDA6220E provides a direct modulation PLL transmitter path from the baseband subsystem to the power amplifier (PA). And in 8PSK mode, the AM signal directly modulation the PA driver block to rebuild the RF signal. A fast settling fractional-N synthesizer is fully integrated, including RF VCO, loop filters, and varactors, etc. The RDA6220E transceiver includes a digitally-controlled crystal (DCXO) and completely integrates the reference oscillator and frequency tuning varactors. The RDA6220E integrated four GPIO and build precise timing control for RF FEM. The information contained herein is the exclusive property of RDA and shall not be distributed, reproduced, or disclosed in whole or in part without prior written permission of RDA. 1