Pam Schematic - LG GM360i Service Manual

3.22 PAM Schematic

PGND
15
GND3
8
GND2
11
GND1
14
BY_CAP2
9
BY_CAP1
13
GSM850_900_OUT
10
DCS_PCS_OUT
12
C590 C591
10n 10n
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Only for training and service purposes
GSM850_900_IN
7
TX_EN
6
VRAMP
5
VBATT
4
U502
BS
3
MODE_SELECT
2
DCS_PCS_IN
1
C546 C520 C547
1u 33u 27p
Figure 28 PAM schematic
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3. TECHNICAL BRIEF
R513
100p
R507
10K
C549 C524 C548 C639
100p 100p 100p 47p
LBAND_PAM_IN
TXON_PA
PA_LEVEL
PA_BAND
PA_MODE
HBAND_PAM_IN
LGE Property
LGE Internal Use Only