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TPA2008D2

SLOS413C – JULY 2003 – REVISED MAY 2004

TERMINAL FUNCTIONS

TERMINAL

I/O

DESCRIPTION

NO.

NAME

AGND

12

-

Analog ground

BYPASS

22

I

Tap to voltage divider for internal mid-supply bias generator used for internal analog reference.

COSC

10

I

A capacitor connected to this terminal sets the oscillation frequency in conjunction with ROSC. For

proper operation, connect a 220-pF capacitor from COSC to ground.

LINN

1

I

Negative differential audio input for left channel

LINP

2

I

Positive differential audio input for left channel

LOUTN

8

O

Negative audio output for left channel

LOUTP

5

O

Positive audio output for left channel

NC

15

I

No connection

PGNDL

6, 7

-

Power ground for left channel H-bridge

PGNDR

18, 19

-

Power ground for right channel H-bridge

PVDDL

4, 9

Power supply for left channel H-bridge

PVDDR

16, 21

Power supply for right channel H-bridge

RINN

24

I

Positive differential audio input for right channel

RINP

23

I

Negative differential audio input for right channel

ROSC

11

I

A resistor connected to the ROSC terminal sets the oscillation frequency in conjunction with COSC. For

proper operation, connect a 120-k

Ω resistor from ROSC to ground.

ROUTN

17

O

Negative output for right channel

ROUTP

20

O

Positive output for right channel

SHUTDOWN

3

I

Places the amplifer in shutdown mode if a TTL logic low is placed on this terminal; normal operation if a

TTL logic high is placed on this terminal.

VDD

13

-

Analog power supply

VOLUME

14

I

DC volume control for setting the gain on the internal amplifiers. The dc voltage range is 0 to VDD.

Thermal Pad

-

-

Connect to analog ground and the power grounds must be soldered down in all applications to properly

secure device on the PCB.

3