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AD1935 Datasheet(PDF) 17 Page - Analog Devices

Part # AD1935
Description  4 ADC/8 DAC with PLL, 192 kHz, 24 Bit CODEC
PDF  30 Pages
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Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

AD1935 Datasheet(HTML) 17 Page - Analog Devices

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Preliminary Technical Data
AD1935/AD1936/AD1937/AD1938/AD1939
Rev. Pr
I | Page 17 of 30
64-Lead LQFP Plastic Package – AD1937, AD1939
Pin No.
In/Out
Mnemonic
Description
1
I
AGND
Analog Ground.
2
I
MCLKI/XI
Master Clock Input/ Crystal Oscillator Input.
3
I
MCLK/XO
Master Clock Output/ Crystal Oscillator Output.
4
I
AGND
Analog Ground.
5
I
AVDD
Analog Power Supply. Connect to analog 3.3 V supply.
6
O
OL3P
DAC 3 Left Positive Output.
7
O
OL3N
DAC 3 Left Negative Output.
8
O
OR3P
DAC 3 Right Positive Output.
9
O
OR3N
DAC 3 Right Negative Output.
10
O
OL4P
DAC 4 Left Positive Output.
11
O
OL4N
DAC 4 Left Negative Output.
12
O
OR4P
DAC 4 Right Positive Output.
13
O
OR4N
DAC 4 Right Negative Output.
14
I
PD/RST
Power-Down Reset (Active Low).
15
I
DSDATA4
DAC Input 4 (Input to DAC 4 L and R).
16
I
DGND
Digital Ground.
17
I
DVDD
Digital Power Supply. Connect to digital 3.3 V supply.
18
I
DSDATA3
DAC Input 3 (Input to DAC 3 L and R).
19
I
DSDATA2
DAC Input 2 (Input to DAC 2 L and R).
20
I
DSDATA1
DAC Input 1 (Input to DAC 1 L and R).
21
I/O
DBCLK
Bit Clock for DACs.
22
I/O
DLRCLK
LR Clock for DACs.
23
VSUPPLY
+5V Input to Regulator, Emitter of Pass Transistor
24
VSENSE
+3.3V Output of Regulator, Collector of Pass Transistor
25
VDRIVE
Drive for Base of Pass Transistor
26
O
ASDATA2
ADC Serial Data Output 2 (ADC 2 L and R).
27
O
ASDATA1
ADC Serial Data Output 1 (ADC 1 L and R).
28
I/O
ABCLK
Bit Clock for ADCs.
29
I/O
ALRCLK
LR Clock for ADCs.
30
I
CIN/ADR0
Control Data Input (SPI)/Address 0 (I2C).
31
I/O
COUT/SDA
Control Data Output (SPI)/Serial Data (I2C).
32
I
DVDD
Digital Power Supply. Connect to digital 3.3 V supply.
33
I
DGND
Digital Ground.
34
I
CCLK/SCL
Control Clock Input (SPI)/Serial Clock (I2C).
35
I
CLATCH/ADR1
Latch Input for Control Data (SPI)/Address 1 (I2C).
36
O
OL1P
DAC 1 Left Positive Output.
37
O
OL1N
DAC 1 Left Negative Output.
38
O
OR1P
DAC 1 Right Positive Output.
39
O
OR1N
DAC 1 Right Negative Output.
40
O
OL2P
DAC 2 Left Positive Output.
41
O
OL2N
DAC 2 Left Negative Output.
42
O
OR2P
DAC 2 Right Positive Output.
43
O
OR2N
DAC 2 Right Negative Output.
44
I
AGND
Analog Ground.
45
I
AVDD
Analog Power Supply. Connect to analog 3.3 V supply.
46
I
AGND
Analog Ground.
47
O
FILTR
Voltage Reference Filter Capacitor Connection. Bypass with 10 µF||100 nF to AGND.
48
I
AGND
Analog Ground.
49
No Connect.
50
No Connect.
51
I
AVDD
Analog Power Supply. Connect to analog 3.3 V supply.



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