Product details

Audio input type Digital Input Architecture Class-D, Smart Amp Speaker channels (Max) Stereo Power stage supply (Max) (V) 26.4 Power stage supply (Min) (V) 4.5 Load (Min) (ohms) 4 Output power (W) 38 SNR (dB) 111 THD + N @ 1 kHz (%) 0.02 Iq (Typ) (mA) 14.8 Control interface Software Closed/open loop Closed Analog supply (Min) (V) 4.5 Analog supply (Max) (V) 26.4 Sampling rate (Max) (kHz) 192 Operating temperature range (C) -25 to 85
Audio input type Digital Input Architecture Class-D, Smart Amp Speaker channels (Max) Stereo Power stage supply (Max) (V) 26.4 Power stage supply (Min) (V) 4.5 Load (Min) (ohms) 4 Output power (W) 38 SNR (dB) 111 THD + N @ 1 kHz (%) 0.02 Iq (Typ) (mA) 14.8 Control interface Software Closed/open loop Closed Analog supply (Min) (V) 4.5 Analog supply (Max) (V) 26.4 Sampling rate (Max) (kHz) 192 Operating temperature range (C) -25 to 85
VQFN (RHB) 32 25 mm² 5 x 5
  • High-efficiency Class-D operation with Hybrid-Pro:
    • Approximately 50% longer battery life compared to fixed supply voltage solutions
    • > 90% Power efficiency, 90 mΩ RDSon
    • Low quiescent current, < 20 mA at 12 V PVDD
  • Supports multiple output configurations:
    • 1 × 53 W, 1.0 Mode (4-Ω, 22 V, THD+N=1%)
    • 1 × 65 W, 1.0 Mode (4-Ω, 22 V, THD+N=10%)
    • 2 × 30 W, 2.0 Mode (8-Ω, 24 V, THD+N=1%)
    • 2 × 38 W, 2.0 Mode (8-Ω, 24 V, THD+N=10%)
  • Excellent audio performance:
    • THD+N ≤ 0.03% at 1 W, 1 kHz, PVDD = 12 V
    • SNR ≥ 110 dB (A-weighted), ICN ≤ 35 µVRMS
  • Flexible audio I/O:
    • Supports 32, 44.1, 48, 88.2, 96 kHz SR
    • Supports I2S, LJ, RJ, TDM format
    • Supports 3-wire digital audio interface
  • Flexible processing features:
    • 3-Band advanced DRC + AGL, 2 × 15 BQs
    • PVDD sensing to avoid clipping distortion while voltage rail drops
    • Up to 4 ms lookahead delay buffer for Hybrid-Pro algorithm audio signal tracking
    • Optional 8 or 16 Hybrid-Pro DC-DC control steps with max 10 ms peak sample hold
  • Flexible power supply configurations:
    • PVDD: 4.5 V to 26.4 V
    • DVDD and I/O: 1.8 V or 3.3 V
  • Excellent integrated self-protection:
    • Over-current error (OCE)
    • Cycle-by-cycle current limit
    • Over-temperature warning (OTW)
    • Over-temperature error (OTE)
    • Under, over-voltage lock-out (UVLO, OVLO)
  • Easy System Integration:
    • I2C Software Control
    • Reduced solution size:
      • Small 5 × 5 mm package
      • Fewer passives required compared to open-loop Class-D devices
      • No bulky electrolytic capacitors or large inductors required for most applications
  • High-efficiency Class-D operation with Hybrid-Pro:
    • Approximately 50% longer battery life compared to fixed supply voltage solutions
    • > 90% Power efficiency, 90 mΩ RDSon
    • Low quiescent current, < 20 mA at 12 V PVDD
  • Supports multiple output configurations:
    • 1 × 53 W, 1.0 Mode (4-Ω, 22 V, THD+N=1%)
    • 1 × 65 W, 1.0 Mode (4-Ω, 22 V, THD+N=10%)
    • 2 × 30 W, 2.0 Mode (8-Ω, 24 V, THD+N=1%)
    • 2 × 38 W, 2.0 Mode (8-Ω, 24 V, THD+N=10%)
  • Excellent audio performance:
    • THD+N ≤ 0.03% at 1 W, 1 kHz, PVDD = 12 V
    • SNR ≥ 110 dB (A-weighted), ICN ≤ 35 µVRMS
  • Flexible audio I/O:
    • Supports 32, 44.1, 48, 88.2, 96 kHz SR
    • Supports I2S, LJ, RJ, TDM format
    • Supports 3-wire digital audio interface
  • Flexible processing features:
    • 3-Band advanced DRC + AGL, 2 × 15 BQs
    • PVDD sensing to avoid clipping distortion while voltage rail drops
    • Up to 4 ms lookahead delay buffer for Hybrid-Pro algorithm audio signal tracking
    • Optional 8 or 16 Hybrid-Pro DC-DC control steps with max 10 ms peak sample hold
  • Flexible power supply configurations:
    • PVDD: 4.5 V to 26.4 V
    • DVDD and I/O: 1.8 V or 3.3 V
  • Excellent integrated self-protection:
    • Over-current error (OCE)
    • Cycle-by-cycle current limit
    • Over-temperature warning (OTW)
    • Over-temperature error (OTE)
    • Under, over-voltage lock-out (UVLO, OVLO)
  • Easy System Integration:
    • I2C Software Control
    • Reduced solution size:
      • Small 5 × 5 mm package
      • Fewer passives required compared to open-loop Class-D devices
      • No bulky electrolytic capacitors or large inductors required for most applications

TAS5825P is a stereo high-efficiency Closed-Loop audio Class-D audio amplifier with an advanced Hybrid-Pro algorithm to improve system efficiency and reduce heat without clipping distortion.

The supply voltage (PVDD) of an audio amplifier is normally provided by a DC-DC converter. Compared with a fixed PVDD, a variable PVDD that fluctuates based on the audio signal significantly improves efficiency, lowers idle current, and reduces heat.

The powerful audio DSP core of TAS5825P implements a proprietary algorithm called Hybrid-Pro. The Hybrid-Pro algorithm detects the upcoming audio power demand and provides a PWM control signal for the former DC-DC converter via the Hybrid-Pro feedback pin (HPFB). The TAS5825P supports up to 4 ms of delay buffer to look ahead at the audio signal and prevent audio clipping distortion. In various experiments, the TAS5825P increased the runtime of 1S and 2S batteries by greater than 50% while continuously playing music.

TAS5825P is a stereo high-efficiency Closed-Loop audio Class-D audio amplifier with an advanced Hybrid-Pro algorithm to improve system efficiency and reduce heat without clipping distortion.

The supply voltage (PVDD) of an audio amplifier is normally provided by a DC-DC converter. Compared with a fixed PVDD, a variable PVDD that fluctuates based on the audio signal significantly improves efficiency, lowers idle current, and reduces heat.

The powerful audio DSP core of TAS5825P implements a proprietary algorithm called Hybrid-Pro. The Hybrid-Pro algorithm detects the upcoming audio power demand and provides a PWM control signal for the former DC-DC converter via the Hybrid-Pro feedback pin (HPFB). The TAS5825P supports up to 4 ms of delay buffer to look ahead at the audio signal and prevent audio clipping distortion. In various experiments, the TAS5825P increased the runtime of 1S and 2S batteries by greater than 50% while continuously playing music.

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Type Title Date
* Data sheet TAS5825P 4.5 V to 26.4 V, 38 W Stereo, Digital Input, High Efficiency Closed-Loop Class-D Audio Amplifier with Hybrid-Pro Algorithm datasheet PDF | HTML 31 May 2019
Technical article How smart amps are bringing high-fidelity audio into the smart home 03 May 2021
Technical article How to extend battery life and reduce power consumption with Class-D audio amplifiers 10 Dec 2020
Technical article How audio amplifiers with integrated DSPs are increasing efficiency 08 Dec 2020
EVM User's guide TAS5825PEVM Evaluation Module User's Guide 03 Sep 2019

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TAS5825PEVM — TAS5825P high efficiency class-D audio amplifier with Hybrid-Pro algorithm evaluation module

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