RMPA1850 Datasheet, PDF (1/9 Pages) Fairchild Semiconductor – Quad Band GSM/GPRS Power Amplifier Module

December 2004
RMPA1850
Quad Band GSM/GPRS Power Amplifier Module
Features
I Quad band, matched module
I High efficiency- 55% GSM850/900, 50% DCS/PCS
I Integrated power control function
I Compact 7*10*1.6mm module
I InGaP HBT technology
I GPRS class 12 capable
I Ruggedness 10:1
I 50 dB power control range
Functional Block Diagram
General Description
The RMPA1850 power amplifier module (PAM) is designed for
GSM/GPRS cellular handset applications. The PAM a fully
input and output 50Ω matched. It also includes integrated power
control and band select.
DCS/PCS IN 1
BAND SELECT ²
TX EN 3
VBAT 4
VREG 5
VRAMP 6
GSM IN 7
VCC2
12
Match
Match
Power
Sensing
CMOS
Power
Controller
Match
8
VCC2
Match
Power
Sensing
11 DCS/PCS OUT
10 VOUT
9 GSM OUT
©2004 Fairchild Semiconductor Corporation
1
RMPA1850 Rev. A1
www.fairchildsemi.com