www.ti.com ......................................................................................................................................................................................... SBAS452 – SEPTEMBER 2008
TERMINAL FUNCTIONS
TERMINAL
PULL-
5-V
NAME
PIN
I/O
DOWN
TOLERANT
DESCRIPTION
VCOMAD
1
—
No
ADC analog common voltage decoupling
AGNDAD2
2
—
No
Analog ground 2 for ADC
VCCAD2
3
—
No
ADC analog power supply 2, +5 V
RST
4
I
Yes
Reset and power-down control input with active low
OVF
5
O
No
Overflow flag output for ADC
LRCKAD
6
I/O
Yes
No
Audio data word clock input/output for ADC
BCKAD
7
I/O
Yes
No
Audio data bit clock input/output for ADC
DOUT1
8
O
No
Audio data digital output for ADC1 and ADC2
DOUT2
9
O
No
Audio data digital output for ADC3 and ADC4
DOUT3
10
O
No
Audio data digital output for ADC5 and ADC6
DGND2
11
—
No
Digital ground 2
VDD2
12
—
No
Digital power supply 2, +3.3 V
ZERO
13
O
No
Zero detect flag output for DAC
VCCDA1
14
—
No
DAC analog power supply 1, +5 V
VCOMDA
15
—
No
DAC voltage common decoupling
AGNDDA1
16
—
No
Analog ground 1 for DAC
VOUT8+
17
O
No
Positive analog output from DAC8
VOUT8–
18
O
No
Negative analog output from DAC8
VOUT7+
19
O
No
Positive analog output from DAC7
VOUT7–
20
O
No
Negative analog output from DAC7
VOUT6+
21
O
No
Positive analog output from DAC6
VOUT6–
22
O
No
Negative analog output from DAC6
VOUT5+
23
O
No
Positive analog output from DAC5
VOUT5–
24
O
No
Negative analog output from DAC5
VOUT4+
25
O
No
Positive analog output from DAC4
VOUT4–
26
O
No
Negative analog output from DAC4
VOUT3+
27
O
No
Positive analog output from DAC3
VOUT3–
28
O
No
Negative analog output from DAC3
VOUT2+
29
O
No
Positive analog output from DAC2
VOUT2–
30
O
No
Negative analog output from DAC2
VOUT1+
31
O
No
Positive analog output from DAC1
VOUT1–
32
O
No
Negative analog output from DAC1
AGNDDA2
33
—
No
Analog ground 2 for DAC
VCCDA2
34
—
No
DAC analog power supply 2, +5 V
LRCKDA
35
I/O
Yes
No
Audio data word clock input/output for DAC
BCKDA
36
I/O
Yes
No
Audio data bit clock input/output for DAC
DIN1
37
I
No
Audio data input for DAC1 and DAC2
DIN2
38
I
No
Audio data input for DAC3 and DAC4
DIN3
39
I
No
Audio data input for DAC5 and DAC6
DIN4
40
I
No
Audio data Input for DAC7 and DAC8
SCKI
41
I
No
Yes
System clock input
MC/SCL/FMT
42
I
No
Yes
Clock for SPI, clock for I2C, format select for hardware control mode
Input data for SPI, data for I2C(1), de-emphasis control for hardware
MDI/SDA/DEMP
43
I/O
No
Yes
control mode
(1)
Open-drain configuration in I2C.
Copyright 2008, Texas Instruments Incorporated
9