Texas Instruments TAS3308EVM, Руководство пользователя, Страница: 24 / 34

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3.1 Control Interface (Control1), Input
3.2 Digital Audio Interface, Input (J1)
Control Interface (Control1), Input
This interface connects the TAS3308EVM board to an internal controller. This is a general-purpose
interface.
Table 3-1. Control1 Pin Description
PIN NO. NET-NAME AT SCHEMATICs DESCRIPTION
1 SDA I
2
C bidirectional data line
2 SCL I
2
C input clock line
3 GND Ground
4 3.3 V Power
5 GPIO1 General-purpose bidirectional I/O 1
6 GPIO2 General-purpose bidirectional I/O 2
7 RESETZ System reset (bidirectional). Activate /MUTE before /RESET for quiet reset
Ramp volume from any setting to noiseless soft mute. Mute can also be activated by
8 MUTEZ
I
2
C
9 GPIO3 General-purpose bidirectional I/O 3
10 GPIO4 General-purpose bidirectional I/O 4
The digital audio interface contains digital audio signal data (I
2
S), clocks etc. See TAS3308 Data Manual
for signal timing and details not explained in this document.
Table 3-2. J1 Pin Description
PIN NO. NET-NAME AT SCHEMATICS DESCRIPTION
1 GND Ground
2 MCLKin Master clock input
3 GND Ground
4 SCLKin I
2
S bit clock
5 GND Ground
6 LRCLKin I
2
S left-right clock
7 GND Ground
8 SDIN1 I
2
S data 1, channel 1 and 2
9 GND Ground
10 SDIN2 I
2
S data 2, channel 3 and 4
11 GND Ground
12 SDIN3 I
2
S data 3, channel 5 and 6
13 GND Ground
14 GND Ground
24 System Interfaces SLEU093 – March 2008
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