Description
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.
- 20-Winto an 😯 Load From an 18-V Supply
- Two Serial Audio Inputs (Four Audio Channels)
- 2-Ch Bridged Outputs (20 W × 2)
- 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)
- 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
- No Separate Supply Required for Gate Drive
- 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 OutputMixers
- Automatic Sample-Rate Detection and Coefficient Banking
- Serial Control Interface Operational Without MCLK
- Factory-Trimmed Internal OscillatorAvoids the Need for External Crystal
- Surface Mount, 64-Terminal, 10-mm × 10-mm HTQFP Package
- Thermal and Short-Circuit Protection
