Texas Instruments TAS5825P Audio Amplifier

Texas Instruments TAS5825P Audio Amplifier is a stereo high-efficiency closed-loop audio Class-D audio amplifier with an advanced Hybrid-Pro algorithm. This algorithm improves system efficiency and reduces heat without clipping distortion. This audio amplifier supports up to 4ms of delay buffer to look ahead at the audio signal and prevent audio clipping distortion. The TAS5825P amplifier increased the runtime of 1S and 2S batteries by greater than 50% while continuously playing music. This audio amplifier supports multiple output configurations and provides excellent integrated self-protection. The TAS5825P amplifier operates at -25°C to 85°C temperature range. This audio amplifier is ideal for use in battery-powered speaker, set-top box, soundbar or subwoofer, Bluetooth speaker, and efficiency sensitive audio system.

Features

High-efficiency Class-D operation with Hybrid-Pro:
- Approximately 50% longer battery life compared to fixed supply voltage solutions
Supports multiple output configurations:
- 1 × 53W, 1.0 Mode (4Ω, 22V, THD+N=1%)
- 1 × 65W, 1.0 Mode (4Ω, 22V, THD+N=10%)
- 2 × 30W, 2.0 Mode (8Ω, 24V, THD+N=1%)
- 2 × 38W, 2.0 Mode (8Ω, 24V, THD+N=10%)
Excellent audio performance:
- THD+N ≤ 0.03% at 1W, 1kHz, PVDD = 12V
- SNR ≥ 110dB (A-weighted), ICN ≤ 35µV_RMS
Flexible audio I/O:
- Supports 32, 44.1, 48, 88.2, 96kHz SR
- Supports I²S, LJ, RJ, and TDM format
- Supports 3-wire digital audio interface
Flexible processing features:
- PVDD sensing to avoid clipping distortion while voltage rail drops
- Up to 4ms lookahead delay buffer for HybridPro algorithm audio signal tracking
- Optional 8 or 16 Hybrid-Pro DC-DC control steps with max 10ms peak sample hold

Excellent integrated self-protection:
- Over Current Error (OCE)
- Cycle-by-cycle current limit
- Over Temperature Warning (OTW)
- Over Temperature Error (OTE)
- Under Voltage Lock Out (UVLO)
- Over Voltage Lock Out (OVLO)
Easy System Integration:
- I²C Software Control
- Reduced solution size:
  - Small 5mm × 5mm package
  - Fewer passives required compared to open-loop Class-D devices
  - No bulky electrolytic capacitors or large inductors required for most applications