LG LH-T3039X Service Manual page 48

4. IC201 ADC(CS5345)
• BLOCK DIAGRAM
+3.3V to +5V
+1.8V
to +5V
Digital Audio
Capture
Micro-
Controller
2 k
See Note 1
+1.8V
to +5V
Note 1: Resistors are required
for IC control port operation
Note 2 The value of R is
L
dictated by the microphone
carteridge.
10 µF
0.1 µF
47 µF
Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
10 µF
0.1 µF
VD VA
VLS
0.1 µF
MCLK
SCLK
LRCK
SDOUT
INT
OVFL
RESET
SCL/CCLK
SDA/CDOUT
AD1/CDIN
AD0/CS
2 k
VLC
0.1 µF
NC
NC
NC
NC
NC
TSTI
TSTO
TSTO
TSTO
VQ
FILT+
0.1 µF
AGND
DGND
0.1 µF
0.1 µF 10 µF
VA
PGAOUTA
PGAOUTB
AIN1A
1800 pF
10 µF
*
*
10 µF
1800 pF
AIN1B
AIN2A
1800 pF
* 10 µF
*
10 µF
1800 pF
AIN2B
AIN3A
1800 pF 10 µF
*
*
10 µF
1800 pF
AIN3B
AIN4A/MICIN1
1800 pF
10 µF
*
* 10 µF
1800 pF
AIN4B/MICIN2
AIN5A
1800 pF 10 µF
*
*
10 µF
1800 pF
AIN5B
AINA
1800 pF
10 µF
*
*
10 µF
1800 pF
AIN6B
See Note 2
MICBIAS
47 µF
AGND
AGND
* *
2.2nF
AFILTA
AFILTB
* Capacitors must be C0G or equivalent
2-39
+3.3V to +5V
3.3 µF
3.3 µF
Left Analog Input 1
100
100 k
100 k
100
Right Analog Input 1
Left Analog Input 2
100
100 k
100 k
100
Right Analog Input 2
Left Analog Input 3
100
100 k
100 k
100
Right Analog Input 3
Left Analog Input 4
100
100 k
100 k
100
Right Analog Input 4
Left Analog Input 5
100
100 k
100 k
100
Right Analog Input 5
Left Analog Input ;
100
100 k
100 k
100
Right Analog Input 6
R
L
2.2nF
LGE Internal Use Only