Rf Function Block - Panasonic GSM EB-A100 Service Manual

5.1.2. RF Function Block

GSM
DCS
PCS
GSM
PA
PA
DCS
PCS
SKY77324
LNA800IN
LNA1800IN
LNA1900IN
LOG EN
UVTUNE
VCPO
LOG EN
TXVCO
TLCPO
CP
Figure 5.1. : RF Function Block Diagram
– 5-2 –
DCOC
Σ∆
FRAC-N PLL
DIV
Σ
DIV
RXI+
RXI–
RQI+
RQI–
T/H
DCOC DCOC
DATA, CLK, LE
FRQ
13 MHz
TXI+
TXI–
90
TQI+
TQI–
SKY74963