带音量控制的 9W 立体声、8.5V 至 14V 电源电压、模拟输入 D 类音频放大器
| Audio input type | Analog Input |
| Architecture | Class-D |
| Speaker channels (Max) | Stereo |
| Power stage supply (Max) (V) | 14 |
| Power stage supply (Min) (V) | 8.5 |
| Load (Min) (ohms) | 8 |
| Output power (W) | 9 |
| SNR (dB) | 96 |
| THD + N @ 1 kHz (%) | 0.2 |
| Iq (Typ) (mA) | 16 |
| Control interface | Hardware |
| Closed/open loop | Open |
| Analog supply (Min) (V) | 8.5 |
| Analog supply (Max) (V) | 14 |
| PSRR (dB) | 80 |
| Operating temperature range (C) | -40 to 85 |
- 9-W/Ch Into an 8-
Load From 12-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? Packaging
- Thermal and Short-Circuit Protection
- APPLICATIONS
- LCD Monitors and TVs
- Powered Speakers
PowerPAD is a trademark of Texas Instruments.
The TPA3002D2 is a 9-W (per channel) efficient, Class-D audio amplifier for driving bridged-tied stereo speakers. The TPA3002D2 can drive stereo speakers as low as 8 . The high efficiency of the TPA3002D2 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.
