PIN

NAME

FUNCTION

1, 2

OUTL-

Left-Channel Negative Speaker Output

3

BOOT

Charge-Pump Output. Connect a 1µF charge-pump holding capacitor from BOOT to PVDD.

4

MONO

Mono Select. Set MONO high for mono mode, low for stereo mode.

5

FBL

Left-Channel Feedback. Connect feedback resistor between FBL and INL to set amplifier gain.

6

INL

Stereo Left-Channel Inverting Input. In mono mode, INL is the inverting audio input for the mono amplifier.

7, 8, 17

N.C.

No Connection. Not internally connected. OK to connect to PGND.

9

MUTE

Mute Input. Drive MUTE low to place the device in mute mode.

10

SHDN

Shutdown Input. Drive SHDN low to place the device in shutdown mode.

11

REGEN

Internal Regulator Enable Input. Connect REGEN to SHDN to enable the internal regulator. Drive REGEN

low to disable the internal regulator, and supply the device with an external 5V supply on VS. See the

Power-Supply Sequencing section.

12

COM

Internal 2V Bias. Bypass COM to AGND with a 1µF capacitor.

13, 14

AGND

Analog Ground

15

REG

Internal Regulator Output. Bypass REG to AGND with a 1µF capacitor.

16

VS

5V Regulator Supply. Bypass VS to AGND with a 1µF capacitor. If REGEN is low, the internal regulator is

disabled, and an external 5V supply must be connected to VS. See the Power-Supply Sequencing section.

MAX9736

TQFN

TOP VIEW

29

30

28

27

12

11

13

14

1

2

PGND

4

5

6

7

23

24

22

20 19 18

PGND

PVDD

AGND

AGND

COM

REGEN

3

21

31

10

OUTL+

SHDN

32

9

OUTL+

MUTE

EP*

+

EP* = EXPOSED PAD, CONNECT TO PGND.

PVDD

26

15 REG

OUTR+

25

16 VS

8

17

OUTR+

MAX9736

Mono/Stereo High-Power Class D Amplifier

www.maximintegrated.com

Maxim Integrated │ 13

Pin Description

Pin Configuration