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7. Block Diagrams
7-
1
7-1. RF Solution Block Diagram
Tx Module
DUAL ASM
(GSM, DCS)
LNA
LNA
LNA
LNA
DI
GITA
L
FI
LT
ER
RFRX
VCO + FREQUENCY
SYNTHESIZER
ф
DET
DCXO
0 / 90
DSP
PGA
PGA
I
ADC
Q
ADC
PGA
PGA
Low-IF
XOUT
AFC
Q
I
Crystal
Antenna
EGSM Tx
DCS Tx