TAS5711 20-W Stereo I2S Audio Amplifier with Speaker EQ, DRC, and 2.1 support | TI.com

TAS5711 (ACTIVE)

20-W Stereo I2S Audio Amplifier with Speaker EQ, DRC, and 2.1 support

 

Next Generation 20-W Stereo, 16V Open-Loop Digital Input Audio Class-D Amplifier with EQ and 3-Band AGL:  TAS5733L

Next Generation 25-W Stereo, 26V Open-Loop Digital Input Audio Class-D Amplifier with EQ and 3-Band AGL:  TAS5751M

Next Generation 25-W Stereo, 26V Open-Loop Digital Input Audio Class-D Amplifier with EQ, 3-Band AGL and Headphone Output:  TAS5753MD

Description

The TAS5711 is a 20-W, efficient, digital audio power amplifier for driving stereo bridge-tied speakers. 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 TAS5711 is an I2S slave-only device receiving all clocks from external sources. The TAS5711 operates with a PWM carrier between 384-kHz switching rate and 352-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.

Features

  • Audio Input/Output
    • 20-W Into an 8- Load From an 18-V Supply
    • Wide PVDD Range, From 8 V to 26 V
    • Efficient Class-D Operation Eliminates Need for Heatsinks
    • One Serial Audio Input (Two Audio Channels)
    • 2.1 Mode (2 SE + 1 BTL)
    • 2.0 Mode (2 BTL)
    • Single-Filter PBTL Mode Support
    • I2C Address Selection Pin (Chip Select)
    • Supports 8-kHz to 48-kHz Sample Rate (LJ/RJ/I2S)
  • Audio/PWM Processing
    • Independent Channel Volume Controls With 24-dB to Mute
    • Separate Dynamic Range Control for Satellite and Subchannels
    • 21 Programmable Biquads for Speaker EQ and Other Audio Processing Features
    • Programmable Coefficients for DRC Filters
    • DC Blocking Filters
    • Support for 3D Effects
  • General Features
    • Serial Control Interface Operational Without MCLK
    • Factory-Trimmed Internal Oscillator for Automatic Rate Detection
    • Surface Mount, 48-Pin, 7-mm × 7-mm HTQFP Package
    • Thermal and Short-Circuit Protection
    • Support for AD or BD Mode
  • Benefits
    • Up to 90% Efficient
    • AD and BD Filter Mode Support
    • SNR: 106 dB, A-Weighted
    • EQ: Speaker Equalization Improves Audio Performance
    • DRC: Dynamic Range Compression. Can Be Used As Power Limiter. Enables
      Speaker Protection, Easy Listening, Night-Mode Listening.
    • Separate DRC for Satellite and Subchannels
    • Autobank Switching: Preload Coefficients for Different Sample Rates.
      No Need to Write new Coefficients to the Part When Sample Rate Changes.
    • Autodetect: Automatically Detects Sample-Rate Changes. No Need for
      External Microprocessor Intervention
  • Requires Only 3.3 V and PVDD
  • APPLICATIONS
    • Television
    • iPod™ Dock
    • Sound Bar

iPod is a trademark of Apple Inc.

Parametrics

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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
TAS5711 Order now Digital Input     Class-D     3     8     26     20     4     106     0.06     29     Software     Open     3     3.6     42.8     48     0 to 85     Catalog    
TAS5721 Order now Digital Input     Class-D     3     4.5     26.4     10     4     106     0.07     21     Software     Open     3     3.6     30     48     0 to 85     Catalog    
TAS5731M Order now Digital Input     Class-D     Stereo     8     26.4     30     2     104     0.03     27     Software     Open     3     3.6     70     48     -40 to 85     Catalog    
TAS5755M Order now Digital Input     Class-D     3     8     26.4     50     4     104     0.05     32     I2C
Software    
Open     3     3.6     70     48     0 to 125     Catalog