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TAS5701 Datasheet

Part NameTAS5701 TI
Texas Instruments TI
TAS5701 image

The TAS5701 is a 20-W efficient, digital audio power amplifier for driving stereo bridge-tied speakers. Two serial data inputs support up to 3 discrete audio channels. The SDIN1 input is routed to the internal left and right outputs. The SDIN2 input is dedicated to the SUB_PWM± outputs.
The TAS5701 is a clock slave-only device receiving clocks from external sources. The TAS5701 operates at a 384-kHz switching rate for 32-, 48-, 96-, and 192-kHz data and 352.8-kHz switching rate 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.

• Audio Input/Output
   – 20-W Into an 8-Ω Load From an 18-V Supply
   – Wide PVDD Range (0 V to 21 V)
   – Efficient Class-D Operation Eliminates
      Need for Heat Sinks
   – Two Serial Audio Inputs (3 Audio channels)
   – Supports 32-kHz to 192-kHz Sample Rates
   – Line-Level Subwoofer PWM Outputs
• Audio/PWM Processing
   – BD (Filter-free) Modulation Supporting
      Bridge-Tied Loads ONLY
   – 4-Step Volume Control (0 dB, 6 dB, 12 dB, 18 dB)
   – All Channels Share Same Control
   – Soft Mute (50% Duty Cycle)
   – DC Blocking Filters
   – Fixed Maximum Modulation Limit At 97.7%
   – ≥100-dB SNR – Measured at Maximum
      Output With THD+N = 1%, 1 kHz,
      A-Weighted Noise, Gain = 0 dB
   – THD < 0.1% at 1/2 Rated Power
• General Features
   – 5-V Tolerant Inputs (See pin list for details
      on which inputs are 5-V tolerant)
   – Shutdown Mode for Low Power
   – Thermal and Short-Circuit Protection
   – Autodetect: Automatically Detect
      Sample-Rate Changes – No Need for
      External Microprocessor Intervention

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