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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.