Texas Instruments TAS5508-5121K8EVM, TAS5121 manual Control Interface J30, 11. J30 Pin Description

Control Interface (J30)

2.7 Control Interface (J30)

This interface connects the TAS5508−5121K8EVM board to a TI input board.

Table 2−11. J30 Pin Description

Pin	Net-Name at
No.	Schematics	Description
1	GND	Ground
2	PSVC−MCPU	Power supply volume control from (mC) input board
3	GND	Ground
4		System reset (bidirectional). Activate		before		for quiet reset.
	RESET		MUTE		RESET
5		Backend error (or soft reset) provides reduced click and pop reset, without resetting I2C
	BKND−ERR
		volume register settings.
6		Ramp volume from any setting to noiseless soft mute. Mute can also be activated by I2C.
	MUTE
7		Power down. The TAS5508B goes to a power-down state when activated.
	PDN

8RESERVED

10	SDA	I2C data clock
11	GND	Ground
12	SCL	I2C bit clock

13RESERVED

15	CONF−SEL	Configuration select. Channel 5 and 6 speaker outputs active and line outputs inactive
		when high. Line outputs active and channel 5 and 6 speaker outputs inactive when low.
16	RESERVED
17	GND	Ground

18RESERVED

20		Shutdown error reporting for front left, front right, and center channels. Activated if the
	SD1
		TAS5121 has high current or high temperature. See Chapter 3.
21		Shutdown error reporting for rear left, rear right, surround left, surround right, and
	SD2
		subwoofer channels. Activated if TAS5121 has high current or high temperature. See
		Chapter 3.
22		Temperature warning. Activated if one or more TAS5121 has reached the temperature
	OTW
		warning level.
23	RESERVED
24		Headphone select. Headphone is active when low and inactive when high.
	HP−SEL
25	GND	Ground
26

27RESERVED

31	GND	Ground
32
33	+5V	5-V dc power supply (output)
34

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