FEATURES

3 W Into 16 Ω From 12-V Supply

Volume Control for Speakers (BTL) and

Headphones (SE)

Differential Inputs

Depop Circuitry

1 μA Shutdown Current

Surface-Mount Package

APPLICATIONS

LCD Monitors and LCD TVs

Multimedia Speakers

Notebook Computers

DESCRIPTION

The TPA6030A4 is designed to drive 3 W into 16-Ω

speakers using a surface-mount package without the need

for an external heatsink. These features make it ideal for

15−17 LCD monitors, small multimedia speakers, and

notebook computers.

To simplify system design, the speaker volume level is

adjusted by applying a dc voltage to the VOLUME

terminal. The delta between speaker volume and

headphone volume can be adjusted by applying a dc

voltage to the SEDIFF terminal. To avoid an unexpected

high volume level through the headphones, a third

terminal, SEMAX, limits the headphone volume level

when a dc voltage is applied. Integrated depop circuitry

and the fully differential design minimize pops, clicks, and

unwanted noise to provide a high level of audio

performance.

The device is available in a 28-pin TSSOP PowerPAD

package. The PowerPAD package is designed to

transfer heat into the ground plane, eliminating the need

for external heat sinks—minimizing solution cost and size.