N°

Pin

Function

Definition

1

TAB

TAB connection

Internal

2

OUT4-

Channel 4 (right rear) negative output

Power Output

3

VCC34

Channel 3 and 4 positive supply

Power Supply

4

PWGND4 Power ground channel 4

Power Ground

5

OUT4+

Channel 4 (right rear) positive output

Power Output

6

ADD

Logic Input

7

SDA

Logic Input

8

SCL

Logic Input

9

UNMUTE Hardware Unmute

Logic Input

10

WS

Logic Input

11

SD13

Logic Input

12

SD24

Logic Input/Output

(Push-Pull when it is configured as output)

13

SCK

Logic Input

14

STBY

STBY pin

Logic Input

15

OUT2+

Channel 2 (Left Rear) positive output

Power Output

16 PWGND2 Power ground channel 2

Power Ground

17

VCC12

Channel 1 and 2 positive supply

Power Supply

18

OUT2-

Channel 2 (Left Rear) negative output

Power Output

19

OUT1-

Channel 1 (Left Front) negative output

Power Output

20

VCC12

Channel 1 and 2 positive supply

Power Supply

21 PWGND1 Power ground channel 1

Power Ground

22

OUT1+

Channel 1 (Left Front) positive output

Power Output

23

CD/DIAG

Clip detector and diagnostic output

Open Drain

24

DGND

Digital ground

Supply Ground

25

D3V3

Digital 3.3V supply filter

Internal

26

AGND

Analog ground

Supply Ground

27

A3V3

Analog 3.3V supply filter

Internal

28

VBUCK

BUCK regulated voltage output (to internal voltage monitor)

Power Supply

29

RSENSE

Current Sense Input

Logic Input

30

GH

Gate driver for external P channel MOS

Logic Output

31 VBATM6V Internal regulator (VBAT-6V) to supply buck driver

Internal

32

VBAT

Battery Supply for Buck and common blocks

Supply

33

OUT3+

Channel 3 (right front) positive output

Power Output

34 PWGND3 Power ground channel 3

Power Ground

35

VCC34

Channel 3 and 4 positive supply

Power Supply

36

OUT3-

Channel 3 (right front) negative output

Power Output

TDA7901

Pin description

DB4653 - Rev 1

page 4/13