Texas Instruments TPA3144D2 Class-D Audio Amplifier
Texas Instruments TPA3144D2 Class-D Audio Amplifier is an efficient, Class-D audio power amplifier for driving bridged-tied stereo speakers at up to 6W at 6Ω or 8Ω (per channel). This amplifier uses Advanced EMI Suppression Technology with Spread Spectrum Control and a 1SPW modulation scheme. TPA3144D2 is fully protected against shorts and overload. It also includes SpeakerGuard™ speaker protection circuitry with an adjustable Automatic Gain Limit (AGL), an adjustable power limiter, and a DC detection circuit for protection of the connected speakers. The AGL allows adjustment of the maximum output voltage without signal clipping for enhanced speaker protection and audio quality.
Features
- 2x6 W/ch into 4Ω Loads at 10% THD+N from a 7V Supply
- 2x6 W/ch into 6Ω Loads at 10% THD+N from a 9.5V Supply
- 2x6 W/ch into 8Ω Loads at 10% THD+N from a 10V Supply
- Up to 90% Efficient Class-D Operation (8Ω) Eliminates Need for Heat Sinks
- <0.05% THD+N at 1W/4Ω/1kHz
- <65µV A-wgt Output Noise
- Wide Supply Voltage Range Allows Operation SpeakerGuard speaker protection circuitry includes from 4.5V to 14.4V
- Inductor-Free Operation
- Enhanced EMI Performance with Spread Spectrum and 1SPW Operation
- SpeakerGuard Speaker Protection Includes Automatic Gain Limit, Adjustable Power Limiter and DC Protection
- Robust Pin-to-Pin, Pin-to-Ground and Pin-to-Power Short Circuit Protection and Thermal Protection
- Four Selectable, Fixed Gain Settings
- Single Ended or Differential Analog Inputs
- Click and Pop Free Startup
Applications
- Televisions
- BT Speakers
- Wireless Speakers
- Mini Speakers
- USB Speakers
- Consumer Audio Equipment
Simplified Schematic
發佈日期: 2015-10-28
| 更新日期: 2022-03-11