Data Sheet AD1934
Rev. D | Page 9 of 28
PIN CONFIGURATION AND FUNCTION DESCRIPTIONS
06106-020
AVDD
48
LF
47
NC
46
NC
45
NC
44
NC
43
NC
42
NC
41
NC
40
NC
39
CM
38
AVDD
37
DVDD
13
DSDATA3
14
DSDATA2
15
DSDATA1
16
DBCLK
17
DLRCLK
18
AUXDATA1
19
NC
20
AUXTDMBCLK
21
AUXTDMLRCLK
22
CIN
23
COUT
24
AGND
1
MCLKI/XI
2
MCLKO/XO
3
AGND
4
AVDD
5
OL3
6
OR3
7
OL4
8
OR4
9
PD/RST
10
DSDATA4
11
DGND
12
AGND
36
FILTR
35
AGND
34
AVDD
33
AGND
32
OR2
31
OL2
30
OR1
29
OL1
28
CLATCH
27
CCLK
26
DGND
25
AD1934
TOP VIEW
(Not to Scale)
SINGLE-ENDED
OUTPUT
NC = NO CONNECT
Figure 2. Pin Configuration
Table 10. Pin Function Description
Pin No. Input/Output Mnemonic Description
1 I AGND Analog Ground.
2 I MCLKI/XI Master Clock Input/Crystal Oscillator Input.
3 O MCLKO/XO Master Clock Output/Crystal Oscillator Output.
5 I AVDD Analog Power Supply. Connect to analog 3.3 V supply.
6 O OL3 DAC 3 Left Output.
7 O OR3 DAC 3 Right Output.
8 O OL4 DAC 4 Left Output.
9 O OR4 DAC 4 Right Output.
10 I
PD
/
RST
Power-Down Reset (Active Low).
11 I/O DSDATA4 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).
12 I DGND Digital Ground.
13 I DVDD Digital Power Supply. Connect to digital 3.3 V supply.
14 I/O DSDATA3 DAC Serial Data Input 3. Data input to DAC3 data in/TDM DAC2 data in (dual-line
mode)/AUX not used.
15 I/O DSDATA2 DAC Serial Data Input 2. Data input to DAC2 data in/TDM DAC2 data out/AUX not used.
16 I DSDATA1 DAC Serial Data Input 1. Data input to DAC1 data in/TDM DAC data in/AUX TDM data in.
17 I/O DBCLK Bit Clock for DACs (Regular Stereo, TDM, or Daisy-Chain TDM Mode).
18 I/O DLRCLK LR Clock for DACs (Regular Stereo, TDM, or Daisy-Chain TDM Mode).
19 O AUXDATA1 AUX DAC1 data out (to external DAC1).
20 NC No Connect.
21 I/O AUXTDMBCLK Auxiliary Mode Only DAC TDM Bit Clock.
22 I/O AUXTDMLRCLK Auxiliary Mode Only DAC LR TDM Clock.
23 I CIN/ADR0 Control Data Input (SPI).
24 I/O COUT/SDA Control Data Output (SPI).
25 I DGND Digital Ground.
