Samsung GT-S5200 Service Manual page 25

Block Diagrams
7-2. RF Blcok Diagram
ANTENNA
RX LINE
PNX6517
ARM946
GSM/GPRS/EDGE
IN
IP
QN
QP
TX LINE
FEM
HWXR874
VC1
QUADBAND
VC2
RX LINE
I-
I+
IQ
Q-
Q+
TRANSCEIVER
QS1001
RF_EN
GSM/GPRS/EDGE
RF_CLK
RF_DATA
RAMP
REF_OUT
REF_CLK(26MHz)
BT_CLK(26MHz)
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GSM_TX
TX LINE
DPCS_TX
GSM_IN
TX LINE
DCS_IN
RAMP_OUT
26MHz
PON_PA(PAM_EN)
BAND_SEL
7-2
TX
LINE
PAM
SKY77344
PAM CONTROL SIGNAL
MODE_SEL