Dac And Adc - Samyung SI-30 Service Manual

9-6 DAC AND ADC

1
D
3V3
L47
60R
R186
1K8
D12
1.2V
C235
10u/6.3
DAC_DATA
DAC_CLK
C
3V3
L48
60R
R117 R118
3K3 3K3
B
ADC_/CS
R122
ADC_DI
ADC_CLK
ADC_SARS
33R
ADC_DO
ADC_/SE
A
1
2
R174 C183
10K 22p
R176
2K7
BUF_3V3
C191 C38
C42
100n 100n
10u/6.3 R177 C185
10K 22p
IC6
C39
TLV5621I
100n
2 REFA 13
HWAT DAC_HWAT
3 REFB 12
DACA
4 REFC 11
DACB
5 REFD 10
DACC
6 DATA 9
DACD
C187
7 CLK 8
R180
EN DAC_EN
22p
R123
10K
33R
R116
3K3
C189
22p
R183
10K
R170 R171
C173 C41
C179 C180
3K3 3K3
100n 100n
22p 22p
IC7
20 VCC 1
C36 CH0
19 NC 2
10u/6.3 CH1
18 /CS 3
CH2
17 DI 4
CH3
16 CLK 5
CH4
15 SARS 6
CH5
14 DO 7
CH6
13 /SE 8
CH7
12 REF 9
COM
C174 R154 C175 R167 C176
11 AGND 10
DGND
22p 3K3 22p 3K3 22p
TLV0838
2
3
IC15/A
3 + LMV324
1
2 -
R175
1K
C184
IC15/B
22p
5 + LMV324
7
6 -
R179
10K
R178
0R
C186
22p
IC15/C
LMV324
10 +
8
9 -
R182
10K
R155 22R 22R R156
C188
R181
22p
0R
R157 22R
R158
BUF_3V3
IC15/D 22R
LMV324
12 +
14
13 -
R184
R185
0R
10K
C190
22p
R172
C181 C182
3K3
22p 22p
R173
3K3
R159
R160 22R
22R RSSI_RX1
RSSI_RX2
R161
RSSI_RX3
R162
22R
TX_FWD_PWR
R163
22R
TX_REV_PWR
R164
22R
12V_MONITOR
22R
5V_MONIOTR
R165
LOOPBACK_ADC
22R
R166
R168 C178 R169
22R
3K3 22p 3K3
3
4
TX_PWR_CNTL
SPARE_DAC1
SPARE_DAC2
LOOPBACK_DAC
C169 C170 C171 C172
22p 22p 22p 22p
4
D
C
B
A