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TRF600-150 , PolySwitch Resettable Devices Telecommunications & Networking Devices
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TPA6030A4-TPA6030A4PWP-TPA6030A4PWPR-TPA6030A4PWPRG4
3-W Stereo Audio Power Amplifier with Advanced DC Volume Control
TPA6030A4
SLOS395B − DECEMBER 2002 − REVISED JANUARY 2005
3-W STEREO AUDIO POWER AMPLIFIER
WITH ADVANCED DC VOLUME CONTROL
FEATURES 3 W Into 16 Ω From 12-V Supply Volume Control for Speakers (BTL) andHeadphones (SE) Differential Inputs Depop Circuitry 1 µA Shutdown Current Surface-Mount Package
APPLICATIONS LCD Monitors and LCD TVs Multimedia Speakers Notebook Computers
DESCRIPTIONThe TPA6030A4 is designed to drive 3 W into 16-Ωspeakers using a surface-mount package without the need
for an external heatsink. These features make it ideal for15�−17� LCD monitors, small multimedia speakers, and
notebook computers.
To simplify system design, the speaker volume level isadjusted by applying a dc voltage to the VOLUME
terminal. The delta between speaker volume andheadphone volume can be adjusted by applying a dc
voltage to the SEDIFF terminal. To avoid an unexpectedhigh volume level through the headphones, a third
terminal, SEMAX, limits the headphone volume levelwhen a dc voltage is applied. Integrated depop circuitry
and the fully differential design minimize pops, clicks, andunwanted 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 totransfer heat into the ground plane, eliminating the needfor external heat sinks—minimizing solution cost and size.
From TV
From TV
From TV
From TV
47 nF
From DAC or
Potentiometers
(DC Voltage)
System
Control
IN2/IN1
From CD
Player
From CD
Player
From CD
Player
From CD
Player
0.47 µF
0.47 µF
0.47 µF
0.47 µF
0.47 µF
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