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LG SN4A - Page 61

LG SN4A
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3-32
Copyright © 2021 LG Electronics Inc. All rights reserved.
Only for training and service purposes.
7. FM
FIG 7-1. ADC IC 5 V
16
FIG 7-2. ADC IC 3.3 V
17
FIG 7-3. TUNER AUDIO
1.27 Vrms
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18
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16
C219 100nF
D_3.3V
C222
100nF
VCC_5V
C220
100nF
IC201
1
VREF
2
AGND
3
VCC
4
VDD
11
MD1
12
FMT
13
VINL
14
VINR
5
DGND
6
SCKI
7
LRCK
8
BCK
9
DOUT
10
MD0
DGND
DGND
DGND
C218
10uF
C223
10uF
C221
10uF
FB206
FB205
PZ1608U221-1R4TF
C225
10uF
TGND
18
C436
100nF
/16V
TUNER_R
C438
10uF
/10V(M)
C434
100nF
/16V
FB401
PZ1608U221-1R4TF
C439
10uF
/10V(M)
IC402
1
NC
2
FMI
3
RFGND
4
LPI
5
RST
6
SEB
7
SCLK
8
SDIO
10
VD
11
VA
12
GND
13
ROUT/[DOUT]
15
DOUT
16
DFS
9
RCLK
14
LOUT/[DFS]
17
GPO3/[DCLK]
18
GPO2/[INT]
19
GPO1
20
NC
FB402
PZ1608U221-1R4TF
TUNER_L
TGND
TGND
TGND
TGND
R408 100
R409 100
TUNNER_3.3V
Close to pin
Close to pin

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