AD1937 AD [Analog Devices], AD1937 Datasheet - Page 11

• Manufacturer Part Number: AD1937
• Description: Four ADCs/Eight DACs with PLL, 192 kHz, 24-Bit Codec
• Manufacturer: AD [Analog Devices]

PIN CONFIGURATION AND FUNCTION DESCRIPTIONS
Table 11. Pin Function Descriptions
Pin No.
1, 4, 44, 46, 48
2
3
5, 45, 51, 62
6
7
8
9
10
11
12
13
14
15
16, 33
17, 32
18
19
20
21
22
Type
I
I
O
I
O
O
O
O
O
O
O
O
I
I/O
I
I
I/O
I/O
I
I/O
I/O
1
MCLKO/MCLKXO
Mnemonic
AGND
MCLKI/MCLKXI
MCLKO/MCLKXO
AVDD
DAC3LP
DAC3LN
DAC3RP
DAC3RN
DAC4LP
DAC4LN
DAC4RP
DAC4RN
PD/RST
DSDATA4
DGND
DVDD
DSDATA3
DSDATA2
DSDATA1
DBCLK
DLRCLK
MCLKI/MCLKXI
NC = NO CONNECT
DSDATA4
DAC3RN
DAC4RN
DAC3LN
DAC3RP
DAC4LN
DAC4RP
DAC3LP
DAC4LP
PD/RST
AGND
AGND
DGND
AVDD
10
11
12
13
14
15
16
1
2
3
4
5
6
7
8
9
64
17
Description
Analog Ground.
Master Clock Input/Crystal Oscillator Input.
Master Clock Output/Crystal Oscillator Output.
Analog Power Supply. Connect this pin to analog 3.3 V supply.
DAC3 Left Positive Output.
DAC3 Left Negative Output.
DAC3 Right Positive Output.
DAC3 Right Negative Output.
DAC4 Left Positive Output.
DAC4 Left Negative Output.
DAC4 Right Positive Output.
DAC4 Right Negative Output
Power-Down Reset (Active Low).
DAC Serial Data Input 4. Data input to DAC4 data in/TDM DAC2 data out (dual-line mode)/
AUX DAC2 data out (to external DAC2).
Digital Ground.
Digital Power Supply. Connect this pin to digital 3.3 V supply.
DAC Serial Data Input 3. Data input to DAC3 data in/TDM DAC2 data in (dual-line mode)/AUX
ADC2 data in (from external ADC2).
DAC Serial Data Input 2. Data input to DAC2 data in/TDM DAC data out/AUX ADC1 data in
(from external ADC1).
DAC Serial Data Input 1. Data input to DAC1 data in/TDM DAC data in/TDM data in.
Bit Clock for DACs. Can be programmed as input or output in all modes.
Frame Clock for DACs. Can be programmed as input or output in all modes.
18
63
62
19
61
20
Figure 4. Pin Configuration
60
21
Rev. 0 | Page 11 of 36
DIFFERENTIAL OUTPUT
22
59
58
23
(Not to Scale)
AD1937
TOP VIEW
57
24
25
56
55
26
54
27
28
53
52
29
51
30
31
50
49
32
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
AGND
FILTR
AGND
AVDD
AGND
DAC2RN
DAC2RP
DAC2LN
DAC2LP
DAC1RN
DAC1RP
DAC1LN
DAC1LP
ADDR1
SCL
DGND
AD1937