Tpa3004D2; General Description; Features; Pinning - Hitachi 42PD3200A Service Manual

12.29. TPA3004D2

12.29.1. General Description

The TPA3004D2 is a 12-W (per channel) efficient, Class-D audio amplifier for driving bridged-tied
stereo speakers. The TPA3004D2 can drive stereo speakers as low as 4
TPA3004D2 eliminates the need for external heatsinks when playing music.
Stereo speaker volume is controlled with a dc voltage applied to the volume control terminal offering a
range of gain from –40 dB to 36 dB. Line outputs, for driving external headphone amplifier inputs, are
also dc voltage controlled with a range of gain from –56 dB to 20 dB.
An integrated 5-V regulated supply is provided for powering an external headphone amplifier.

12.29.2. Features

• 12-W/Ch Into an 8- Load From 15-V Supply
•
Efficient, Class-D Operation Eliminates Heatsinks and Reduces Power Supply Requirements
•
32-Step DC Volume Control From 40 dB to 36 dB
•
Line Outputs For External Headphone Amplifier With Volume Control
•
Regulated 5-V Supply Output for Powering TPA6110A2
•
Space-Saving, Thermally-Enhanced PowerPAD
• Thermal and Short-Circuit Protection.

12.29.3. Pinning

TM
Packaging
32
. The high efficiency of the