RDA Microelectronics, Inc. RDA6625e Front-end Module RDA6625e Front-end Module The RDA6625e is a high-power, high-efficiency quad-band front-end Module. This device is designed for GSM850, EGSM900, DCS1800, PCS1900 handheld digital cellular equipment. The module consists of quad band power amplifiers and antenna switch. The power amplifiers, switch and their controller are fabricated with GaAs HBT and CMOS respectively. The device package is 5mmx5mmx1.1mm 32-pins LGA. The input and output are realized on-chip matched to 50. The RDA6625e requires few external components, simplifying PCB layout and reducing PCB board space. Features Ultra-Small 5mmx5mm Package Quad-Band Power Amplifier with RF switches ESD protection at Antenna Complete Power Control Solution High efficiency Low supply voltage (3~4.5V) Input/Output matched @ 50 Advanced HBT/CMOS process Pin Assignment Function Block Diagram RX2 Matching Circuit DCSIN DCS/PCS PA RAMP TXEN Controller CTR1 VCCCT GSM/EGSM PA Matching Circuit GSMIN GND GND NC GND NC GND 31 30 29 28 27 26 25 1 24 GSMIN GND 2 23 DCSIN GND 3 22 4 21 NC ESD protect GND 32 GND GND CTR0 GND GND 5 20 CAP NC CAP RX2 6 19 RAMP RX3 7 18 TXEN GND 8 17 CTR0 RX3 9 10 11 12 13 14 15 16 ANT GND GND GND VCC VCC GND CTR1 Pin Name definition Pin Pin Name Description Pin Pin Name Description 1~4 GND Ground 18 TXEN TX enable pin 5 NC Reserved 19 RAMP Ramp control pin 6 RX2 RX port 20 CAP Connected capacitor 7 RX3 RX port 21 NC Reserved 8 GND Ground 22 CAP Connected capacitor 9 ANT Antenna port 23 DCSIN DCS/PCS RF input port 10~12 GND Ground 24 GSMIN GSM/EGSM RF input port 13~14 VCC Power supply 25 GND Ground 15 GND Ground 26,28 NC Reserved 16 CTR1 Control logic pin 27 GND Ground 17 CTR0 Control logic pin 29~32 GND Ground The information contained herein is the exclusive property of RDA and shall not be distributed, reproduced, or disclosed in Page 2 of 15 whole or in part without prior written permission of RDA.