20-W stereo, 39-W mono, 4.5-to 26.4-V, digital input open loop Class-D audio amplifier w/ AGL & HP


Product details


Audio input type Digital Input Architecture Class-D Speaker channels (Max) Stereo Power stage supply (Max) (V) 26.4 Power stage supply (Min) (V) 8 Load (Min) (ohms) 2 Output power (W) 20 SNR (dB) 105 THD + N @ 1 kHz (%) 0.13 Iq (Typ) (mA) 23 Control interface I2C Closed/open loop Open Analog supply (Min) (V) 3 Analog supply (Max) (V) 3.6 Power to parallel bridge tied load (Max) (W) 65 Sampling rate (Max) (kHz) 48 Operating temperature range (C) 0 to 85 open-in-new Find other Speaker amps

Package | Pins | Size

HTSSOP (DCA) 48 101 mm² 12.5 x 8.1 open-in-new Find other Speaker amps


  • Audio Input/Output
    • Supports BTL Configuration With 4-Ω Load
    • One Stereo Serial Audio Input
    • I2C Address Selection Pin
    • Supports 44.1-kHz and 48-kHz Sample Rates (LJ/RJ/I2S)
  • Headphone Amplifier and Line Driver
    • Independent Channel Volume Controls With Gain of 24 dB to Mute in 0.125-dB Steps
    • Programmable Three-Band Automatic Gain Limiting (AGL)
    • 20 Programmable Biquads for Speaker EQ and Other Audio-Processing Features
  • General Features
    • I2C Serial Control Interface Operational Without MCLK
    • Automatic Rate Detection
    • Thermal, Short-Circuit, and Undervoltage Protection
    • 105-dB SNR, A-Weighted, Referenced to Full Scale (0 dB)
    • Up to 90% Efficient
    • AD, BD, and Ternary Modulation
    • PWM Level Meter
    • Operates from 4.5-V to 24-V PVDD

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The TAS5753MD device is an efficient, digital-input audio amplifier for driving stereo speakers configured as a bridge tied load (BTL). One serial data input allows processing of up to two discrete audio channels and seamless integration to most digital audio processors and MPEG decoders. The device accepts a wide range of input data and data rates. A fully programmable data path routes these channels to the internal speaker drivers.

The TAS5753MD device is a slave-only device receiving all clocks from external sources. The TAS5753MD device operates with a PWM carrier between a 384-kHz switching rate and a 288-kHz switching rate, depending on the input sample rate. Oversampling combined with a fourth-order noise shaper provides a flat noise floor and excellent dynamic range from 20 Hz to 20 kHz. The device has an integrated Directpath™ Headphone amplifier and linedriver to increase the system-level integration and reduce total solution costs.

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Technical documentation

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Type Title Date
* Datasheet TAS5753MD 20-W I²S Input Class-D Amplifier With Digital Audio Processor and DirectPath™ HP and Line Driver datasheet (Rev. C) May 15, 2017
User guides TAS5753MD Evaluation Module User's Guide May 05, 2016

Design & development

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Hardware development

document-generic User guide

The TAS5753MDEVM allows evaluation of the TAS5753MD, I2S-input, open loop amplifier from Texas Instruments. The evaluation module is populated with two TAS5753MD devices, one configured for two channel operation and one configured for mono operation. The TAS5733L combine a PWM processor with an open (...)

  • 25-W/8-Ω Stereo  and 50-W/4-Ω Mono outputs with 24-V supply
  • I2S input, 8kHz-48kHz Fs, configurable I2C Address, ternary modulation, up to 10 BQ per channel, 3-Band AGL and a Full band AGL
  • Integrated Headphone/Line Driver Amplifier
  • TAS5751MEVM is configured as a 2.1 solution using one TAS5751M for (...)

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HTSSOP (DCA) 48 View options

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