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TAS5707 Datasheet

Part NameTAS5707 TI
Texas Instruments TI
TAS5707 image

The TAS5707 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 TAS5707 is a slave-only device receiving all clocks from external sources. The TAS5707 operates with a PWM carrier between a 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..
The TAS5707A is identical in function to the HTQFP packaged TAS5707, but has a unique I2C device address. The address of the TAS5707 is 0x36. The address of the TAS5707A is 0x3A.

• Audio Input/Output
   – 20-W Into an 8-Ω Load From an 18-V Supply
   – Wide PVDD Range, From 8 V to 26 V
   – Efficient Class-D Operation Eliminates
      Need for Heatsinks
   – Requires Only 3.3 V and PVDD
   – One Serial Audio Input (Two Audio Channels)
   – Supports 8-kHz to 48-kHz Sample Rate
• Audio/PWM Processing
   – Independent Channel Volume Controls With
      24 dB to Mute
   – Soft Mute (50% Duty Cycle)
   – Programmable Dynamic Range Control
   – 14 Programmable Biquads for Speaker EQ
      and Other Audio Processing Features
   – Programmable Coefficients for DRC Filters
   – DC Blocking Filters
• General Features
   – Serial Control Interface Operational Without
   – Factory-Trimmed Internal Oscillator for
      Automatic Rate Detection
   – Surface Mount, 48-PIN, 7-mm × 7-mm
      HTQFP Package
   – Thermal and Short-Circuit Protection
• Benefits
   – EQ: Speaker Equalization Improves Audio
   – DRC: Dynamic Range Compression. Can
      Be Used As Power Limiter. Enables
      Speaker Protection, Easy Listening,
      Night-Mode Listening
   – 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

• Television
• iPod™ Dock
• Sound Bar

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