24
S-101
AD1837 (IC711: 1U-3694)
AD1837 Terminal Function
DescriptionPin No.
Pin Name
Input/
Output
1,39 DVDD Digital Power Supply. Connect to digital 5V supply.
2 CLATCH I Latch Input for Control Data
33 CIN I Serial Control Input
4 PD/RST I Power-Down/Reset
5,10,16,24,30,35 AGND Analog Ground
6,12,25,31 NC Not connected
7,13,26,32 OUTLx O DACx Left Channel Output
8,14,27,33 NC Not connected
9,15,28,34 OUTRx O DACx Right Channel Output
11,19,29 AVDD Analog Power Supply. Connect to analog 5V supply.
17 FILTD Filter Capacitor Connection. Recommend 10µF/100nF.
18 FILTR Reference Filter Capacitor Connection. Recommended 10µF/100nF.
20 ADCLN I ADC Left Channel Negative Input
21 ADCLP I ADC Left Channel Positive Input
22 ADCRN I ADC Right Channel Negative Input
23 ADCRP I ADC Right Channel Positive Input
36 M/S I ADC Master/Slave Select
37 DLRCLK I/O DAC LR Clock
38 DBCLK I/O DAC Bit Clock
40,52 DGND Digital Ground
41-44 DSDATAx I DACx Input Data (Left and Right Supply)
45 ABCLK I/O ADC Bit Clock
46 ALRCLK I/O ADC LR Clock
47 MCLK I Master Clock Input
48 ADVDD Digital Output Driver Power Supply
49 ASDATA O ADC Serial Data Output
50 COUT O Output for Control Data
51 CCLK I Control Clock Input for Control Data
1
2
3
4
5
6
7
8
9
10
11
12
13
AGND
AVDD
OUTR2
NC
OUTL2
NC
OUTR1
NC
OUTL1
NC
PD/RST
CIN
CLATCH
DVDD
NC
OUTL3
NC
OUTR3
NC
OUTL4
NC
OUTR4
AGND
DLRCLK
DBCLK
DGND
14 15 16 17 18 19 20 21 22 23 24 25 26
27
28
29
30
31
32
33
34
35
36
37
38
39
52
51
50 49
48
47 46 45 44 43 42 41 40
FILTD
FILTR
AGND
M/S
AGND
AVDD
ADCLN
ADCLP
ADCRN
ADCRP
AGND
AGND
DGND
CCLK
COUT
ASDATA
ODVDD
MCLK
ALRCLK
ABCLK
DSDATA4
DSDATA3
DSDATA2
DSDATA1
DVDD
AVDD
TOP VIEW
OUTL1
CONTROL PORT
CLOCK
FILTD
FILTR
ADCLP
ADCLN
ADCRP
ADCRN
DLRCLK
DBCLK
DSDATA1
DSDATA2
DSDATA3
DSDATA4
MCLKASDATAABCLKALRCLKODVDDDVDD DVDD
DGND AGND AGND AGND AGNDDGND
CINCLATCHCCLK COUT
DIGITAL
FILTER
PD/RST M/S AVDD AVDD
VOLUME
OUTR1
OUTL2
OUTR2
OUTL3
OUTR3
OUTL4
OUTR4
AD1837
DIGITAL
FILTER
SERIAL DATA
I/O PORT
VOLUME
VOLUME
VOLUME
VOLUME
VOLUME
VOLUME
VOLUME
DIGITAL
FILTER
DIGITAL
FILTER
DIGITAL
FILTER
DIGITAL
FILTER
V
REF
Σ-∆
ADC
Σ-∆
ADC
Σ-∆
DAC
Σ-∆
DAC
Σ-∆
DAC
Σ-∆
DAC
w
w
w
.
x
i
a
o
y
u
1
6
3
.
c
o
m
Q
Q
3
7
6
3
1
5
1
5
0
9
9
2
8
9
4
2
9
8
T
E
L
1
3
9
4
2
2
9
6
5
1
3
9
9
2
8
9
4
2
9
8
0
5
1
5
1
3
6
7
3
Q
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com
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