TAS5766M 20W Class-D Stereo PurePath™ Smart Amp | TI.com

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20W Class-D Stereo PurePath™ Smart Amp

20W Class-D Stereo PurePath™ Smart Amp - TAS5766M


The TAS576xM PurePath Smart Amp enhance the bass, sound fidelity and provide more loudness and at the same time drive a speaker to its thermal and mechanical limits.

The TAS576xM contains two BTL class-D amplifiers – with up to 2x50W peak into 4Ω. The amplifier is thermally designed to fit with the typical speaker so it can handle high peaks for the time it takes the speaker voice-coil to heat up, and then it lowers the average power to safe limits.

The wide supply range of 4.5 V to 26.4 V enables the use of a wide range of different power supply options from 2-cell Li-Ion batteries to fixed 24 V supply.

TI’s PurePath Smart Amp technology allow speakers to be driven with more peak power than their average power rating, without fear of damage to the speaker through over excursion or thermal-overload.


  • PurePath Smart Amp:
    • Optimizes and Protects Dynamic Loudspeakers
    • Bass Q-compensation and Frequency Extension: More Loudness, Bass Enhancement, Better Clarity and Higher Fidelity.
    • Thermal and Excursion Limitation.
  • Stereo Class-D Amplifier With:
    • Wide Power Supply Range: 4.5 V –26.4 V
    • Wide Load Range: 2 Ω – 8 Ω;
    • High output current: 2x 7.5 A
    • Peak output power 2x 50 W/4 Ω
    • Continuous Power: 2x 20 W w/o heat sink
    • Click and Pop free: Power, Mute and Standby ON/OFF
    • Low Output Noise: <60 µVrms at 12 V-supply, <90 µVrms at 24-V supply
    • Low THD+N: <0.02% at 1 W/4 Ω, 1 kHz
    • Thermal, Over-Current and Short-Circuit Protected
  • Configurable Digital Audio Processor.
    • Down Mixing and Custom EQ with 10 BiQuads
  • Digital Audio Interface: I2S or TDM input w.
    • 44.1 kHz and 48 kHz FS
    • Configurable Digital Output
  • Multisegment DAC with Excellent Jitter Suppression
  • Integrated High-Performance Audio PLL
  • I2C control
  • 48-pin PowerPAD™ HTSSOP or VQFN Package

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Part number Order Audio input type Architecture Speaker channels (Max) Power stage supply (Min) (V) Power stage supply (Max) (V) Output power (W) Load (Min) (ohms) SNR (dB) THD + N @ 1 kHz (%) Iq (Typ) (mA) Control interface Closed/open loop Analog supply (Min) (V) Analog supply (Max) (V) Power to parallel bridge tied load (Max) (W) Sampling rate (Max) (kHz) Operating temperature range (C) Rating
TAS5766M Order now Digital Input     Class-D
Smart Amp    
Stereo     4.5     26.4     50     1     106     0.02     20     Software     Closed     4.5     26.4     40     48     -25 to 85     Catalog