TAS5733L Stereo 20-W, 8V-16.5V Open-Loop Digital Input Audio Power Amplifier with EQ and 3-Band AGL: TAS5733L | TI.com

TAS5733L (ACTIVE) Stereo 20-W, 8V-16.5V Open-Loop Digital Input Audio Power Amplifier with EQ and 3-Band AGL: TAS5733L


Special note

Next generation with closed-loop feedback, Hybrid Modulation, higher performance and more features: TAS5805M.

For a 23W 96kHz closed-loop inductor-less Stereo Class-D audio amplifier, with a lower total solution cost, see TAS5805M

For a higher performance 38W 192kHz closed-loop inductor-less , small solution size Stereo Class-D audio amplifier with flexible processing, seeTAS5825M


The TAS5733L device is an efficient, digital-input audio amplifier for driving stereo speakers configured as a bridge tied load (BTL). In parallel bridge tied load (PBTL) in can produce higher power by driving the parallel outputs into a single lower impedance load. 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 TAS5733L device is a slave-only device receiving all clocks from external sources. The TAS5733L 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.


  • Audio Input/Output
    • One-Stereo Serial Audio Input
    • Supports 44.1-kHz and 48-kHz Sample Rates
    • Supports 3-Wire I²S Mode (no MCLK required)
    • Automatic Audio Port Rate Detection
    • Supports BTL and PBTL Configuration
    • POUT = 10 W @ 10% THD+N
      • PVDD = 12 V, 8 Ω, 1 kHz
  • Audio/PWM Processing
    • 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
    • 104-dB SNR, A-Weighted, Referenced to Full
      Scale (0 dB)
    • I²C Serial Control Interface w/ two Addresses
    • Thermal, Short-Circuit, and Undervoltage
    • Up to 90% Efficient
    • AD, BD, and Ternary Modulation
    • PWM Level Meter


Compare all products in Speaker amps Email Download to Excel
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
TAS5733L Order now Digital Input     Class-D     Stereo     8     16.5     12     4     104     0.25     23     Software     Closed     3     3.6     50     48     0 to 85     Catalog    
TAS5805M Order now Digital Input     Class-D     Stereo     4.5     26.4     23     4     107     0.03     16.5     I2C     Closed     4.5     26.4     45     96     -25 to 85     Catalog    
TAS5825M Order now Digital Input     Class-D
Smart Amp    
Stereo     4.5     26.4     38     4     111     0.02     14.8     Software     Closed     4.5     26.4     80     192     -25 to 85     Catalog