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TAS5706B

ACTIVE

20-W stereo, 10- to 26-V, digital input, Class-D audio amplifier w/ speaker EQ & DRC, SE output

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Data sheet

TAS5706B

ACTIVE
Data sheet Order now

Product details

Audio input type Digital Input Architecture Class-D Speaker channels (max) 4 Rating Catalog Power stage supply (max) (V) 26 Power stage supply (min) (V) 10 Load (min) (Ω) 4 Output power (W) 20 SNR (dB) 99 THD + N at 1 kHz (%) 0.05 Iq (typ) (mA) 33 Control interface Hardware, Software Closed/open loop Closed Analog supply (min) (V) 3 Analog supply voltage (max) (V) 3.6 Sampling rate (max) (kHz) 192 PSRR (dB) 60 Operating temperature range (°C) 0 to 85
Audio input type Digital Input Architecture Class-D Speaker channels (max) 4 Rating Catalog Power stage supply (max) (V) 26 Power stage supply (min) (V) 10 Load (min) (Ω) 4 Output power (W) 20 SNR (dB) 99 THD + N at 1 kHz (%) 0.05 Iq (typ) (mA) 33 Control interface Hardware, Software Closed/open loop Closed Analog supply (min) (V) 3 Analog supply voltage (max) (V) 3.6 Sampling rate (max) (kHz) 192 PSRR (dB) 60 Operating temperature range (°C) 0 to 85
HTQFP (PAP) 64 144 mm² 12 x 12
  • Audio Input/Output
    • 20-W into an 8- Load From an 18-V Supply
    • Two Serial Audio Inputs (Four Audio Channels)
  • TAS5706A Supports:
    • 2-Ch Bridged Outputs (20 W × 2)
  • TAS5706B Supports:
    • 2-Ch Bridged Outputs (20 W × 2)
    • 4-Ch Single-Ended Outputs (10 W × 4)
    • 2-Ch Single-Ended + 1-Ch Bridged (2.1 Mode) (10 W × 2 + 20 W)
  • Supports 32-kHz-192-kHz Sample Rates (LJ/RJ/I2S)
  • Closed Loop Power Stage Architecture
    • Improved PSRR Reduces Power Supply Performance Requirements
    • Higher Damping Factor Provides for Tighter, More Accurate Sound With Improved Bass Response
    • Constant Output Power Over Variation in Supply
  • Wide PVCC Range From (10 V to 26 V)
    • No Separate Supply Required for Gate Drive
  • Headphone PWM Outputs
  • Subwoofer PWM Outputs
  • AM Interference Avoidance Support
  • Audio/PWM Processing
    • Independent Channel Volume Controls With 48-dB to -79-dB Range—Soft Mute (50% Duty Cycle)
    • Programmable Dynamic Range Control
    • 7 Programmable Biquads for Speaker Equalization for Left and Right Channels
    • 4 Programmable Biquads for Bass Processing
    • Adaptive Biquad Coefficients for EQ and DRC Filters
    • Programmable Input and Output Mixers
    • Automatic Sample-Rate Detection and Coefficient Banking
  • General Features
    • Serial Control Interface Operational Without MCLK
    • Factory-Trimmed Internal Oscillator Avoids the Need for External Crystal
    • Surface Mount, 64-Terminal, 10-mm × 10-mm HTQFP Package
    • Thermal and Short-Circuit Protection

All trademarks are the property of their respective owners.
  • Audio Input/Output
    • 20-W into an 8- Load From an 18-V Supply
    • Two Serial Audio Inputs (Four Audio Channels)
  • TAS5706A Supports:
    • 2-Ch Bridged Outputs (20 W × 2)
  • TAS5706B Supports:
    • 2-Ch Bridged Outputs (20 W × 2)
    • 4-Ch Single-Ended Outputs (10 W × 4)
    • 2-Ch Single-Ended + 1-Ch Bridged (2.1 Mode) (10 W × 2 + 20 W)
  • Supports 32-kHz-192-kHz Sample Rates (LJ/RJ/I2S)
  • Closed Loop Power Stage Architecture
    • Improved PSRR Reduces Power Supply Performance Requirements
    • Higher Damping Factor Provides for Tighter, More Accurate Sound With Improved Bass Response
    • Constant Output Power Over Variation in Supply
  • Wide PVCC Range From (10 V to 26 V)
    • No Separate Supply Required for Gate Drive
  • Headphone PWM Outputs
  • Subwoofer PWM Outputs
  • AM Interference Avoidance Support
  • Audio/PWM Processing
    • Independent Channel Volume Controls With 48-dB to -79-dB Range—Soft Mute (50% Duty Cycle)
    • Programmable Dynamic Range Control
    • 7 Programmable Biquads for Speaker Equalization for Left and Right Channels
    • 4 Programmable Biquads for Bass Processing
    • Adaptive Biquad Coefficients for EQ and DRC Filters
    • Programmable Input and Output Mixers
    • Automatic Sample-Rate Detection and Coefficient Banking
  • General Features
    • Serial Control Interface Operational Without MCLK
    • Factory-Trimmed Internal Oscillator Avoids the Need for External Crystal
    • Surface Mount, 64-Terminal, 10-mm × 10-mm HTQFP Package
    • Thermal and Short-Circuit Protection

All trademarks are the property of their respective owners.

The TAS5706A/B is a 20-W, efficient, digital audio power amplifier for driving stereo bridged-tied speakers. Two serial data inputs allow processing of up to four discrete audio channels and seamless integration to most digital audio processors and MPEG decoders, accepting a wide range of input data and clock rates. A fully programmable data path allows these channels to be routed to the internal speaker drivers or output via the subwoofer or headphone PWM outputs.

The TAS5706A/B is a slave-only device receiving all clocks from external sources. The TAS5706A/B operates at a 384-kHz switching rate for 32-, 48-, 96-, and 192-kHz data, and at a 352.8 kHz switching rate for 44.1-, 88.2-, and 176.4-kHz data. The 8× oversampling combined with the fourth-order noise shaper provides a flat noise floor and excellent dynamic range from 20 Hz to 20 kHz.

The TAS5706A/B is a 20-W, efficient, digital audio power amplifier for driving stereo bridged-tied speakers. Two serial data inputs allow processing of up to four discrete audio channels and seamless integration to most digital audio processors and MPEG decoders, accepting a wide range of input data and clock rates. A fully programmable data path allows these channels to be routed to the internal speaker drivers or output via the subwoofer or headphone PWM outputs.

The TAS5706A/B is a slave-only device receiving all clocks from external sources. The TAS5706A/B operates at a 384-kHz switching rate for 32-, 48-, 96-, and 192-kHz data, and at a 352.8 kHz switching rate for 44.1-, 88.2-, and 176.4-kHz data. The 8× oversampling combined with the fourth-order noise shaper provides a flat noise floor and excellent dynamic range from 20 Hz to 20 kHz.
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Type Title Date
* Data sheet 20W stereo Digital Audio Power Amplifier With EQ and DRC. datasheet (Rev. D) 10 Sep 2009
Application note Guidelines for Measuring Audio Power Amplifier Performance (Rev. A) 26 Aug 2019
Application note AN-1849 An Audio Amplifier Power Supply Design (Rev. C) 27 Jun 2019
Application note AN-1737 Managing EMI in Class D Audio Applications (Rev. A) 01 May 2013

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