3.1
Digital Audio Interface
3.1.1 Digital Input Header
3.1.2 Digital Output Header
Digital Audio Interface
www.ti.com
The digital audio interface contains the digital I
2
S clocks and data. Please refer to the TAS3208 Data
Manual for signal timing an overview of the I
2
S protocol.
Table 3-1. Digital Audio Input Interface (J1)
HEADER
SIGNAL NAME
SCHEMATIC NET NAME
PIN ASSIGNMENT
Master clock input
MCLKIN
1
Digital ground
GND
2
Serial clock input
SCLKIN
3
Digital ground
GND
4
Left/right clock input
LRCLKIN
5
Digital ground
GND
6
Serial data 1 input
SDIN1
7
Digital ground
GND
8
Serial data 2 input
SDIN2
9
Digital ground
GND
10
Serial data 3 input
SDIN3
11
Sony/Philips digital interface format input
SPDIF_IN
12
Table 3-2. Digital Audio Output Interface (J3)
HEADER
SIGNAL NAME
SCHEMATIC NET NAME
PIN ASSIGNMENT
Not connected
NC
1
Not connected
NC
2
Serial data 2 output
SDOUT2
3
Digital ground
GND
4
Serial data 1 output
SDOUT1
5
Digital ground
GND
6
Serial clock output
SCLKOUT
7
Digital ground
GND
8
Left/right clock output
LRCLKOUT
9
Digital ground
GND
10
Master clock output
MCLKOUT
11
Digital ground
GND
12
18
System Interfaces
SLEU097 – April 2008
