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www.ti.com
SBAS327A − JUNE 2004 − REVISED SEPTEMBER 2004
Terminal Functions
TERMINAL
NAME
PIN NO.
I/O
Input
Input
—
DESCRIPTION
1
2
3
V
1−
1+
Channel 1 Analog Input, Inverting
IN
V
IN
Channel 1 Analog Input, Non-inverting
No Internal Connection
No Internal Connection
Analog Supply, +5V Nominal
Analog Ground
NC
NC
4
—
5
V 1
CC
Power
Ground
Ground
Ground
Power
Input
Input
Input
Input
Input
Input
Ground
Input
Input
Input
Input
—
6
AGND1
BGND1
DGND1
7
Substrate Ground
8
Digital Ground
9
V 1
DD
Digital Supply, +3.3V Nominal
10
11
12
13
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
40
RST
TEST
FS0
Reset/Power Down (Active Low with internal pull-up to V 1)
DD
Test Pin (Active High with internal pull-down to DGND)
Sampling Mode
FS1
Sampling Mode
FS2
Sampling Mode
SCKI
BGND2
S/M
System Clock
Substrate Ground
Audio Serial Port Slave/Master Mode (0 = Master, 1 = Slave)
Audio Data Format
FMT0
FMT1
FMT2
NC
Audio Data Format
Audio Data Format
No Internal Connection
Digital Ground
DGND2
Ground
Power
I/O
V 2
DD
Digital Supply, +3.3V Nominal
DSD Data Clock
DSDCLK
DSD1
DSD2
DSD3
DSD4
BCK
I/O
Channel 1 DSD Data
I/O
Channel 2 DSD Data
I/O
Channel 3 DSD Data
I/O
Channel 4 DSD Data
I/O
Audio Serial Port Bit Clock
Audio Serial Port Left/Right (or Word) Clock
LRCK
SDOUT1
SDOUT2
BGND3
CLIP1
CLIP2
CLIP3
CLIP4
HPFD
SUB
I/O
(1)
Output
Output
Ground
Output
Output
Output
Output
Input
Input
Power
PCM Data for Channels 1 and 2
PCM Data for Channels 3 and 4
Substrate Ground
(1)
Channel 1 Clipping Flag (Active High)
Channel 2 Clipping Flag (Active High)
Channel 3 Clipping Flag (Active High)
Channel 4 Clipping Flag (Active High)
High-Pass Filter Disable (Active High)
TDM Sub-Frame Assignment (0 = SF 0, 1 = SF 1)
Digital Supply, +3.3V Nominal
V 3
DD
(1)
For TDM formats, SDOUT1 carries data for all four channels, while SDOUT2 is driven low.
7
BB [ BURR-BROWN CORPORATION ]
