25-W Stereo I2S Audio Amplifier with Speaker EQ, 2-Band DRC, and DC Protection  - TAS5715


25-W Stereo I2S Audio Amplifier with Speaker EQ, 2-Band DRC, and DC Protection


Recommended alternative parts

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  • TAS5711  -  I2S Digital Input Audio Amplifier with 2.1 support (Open-Loop)


The TAS5715 is a 25-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 TAS5715 is a slave-only device receiving all clocks from external sources. The TAS5715 operates with a PWM carrier between a 384-kHz switching rate and a 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.


  • Audio Input/Output
    • 25-W Into an 8- Load From an 18-V Supply
    • 50-W Support in PBTL Mode With 4- Load
    • 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)
    • I2C Address Selection via PIN (Chip Select)
    • Supports 8-kHz to 48-kHz Sample Rate (LJ/RJ/I2S)
    • Headphone PWM Outputs
    • Dedicated Pin for External Headphone-Amplifier Shutdown
    • Single-Filter PBTL Support
  • Audio/PWM Processing
    • Independent Channel Volume Controls With 24-dB to Mute
    • Independent Headphone Volume
    • Programmable Two-Band Dynamic Range Control
    • Up to Eight User-Programmable Biquads per Channel
    • Programmable Coefficients for DRC Filters
    • DC Blocking Filters and PWM DC Detect
    • CRC Checksum to Detect Biquad Coefficient Corruption
  • 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
  • Benefits
    • EQ: Speaker Equalization Improves Audio Performance
    • DRC: Automatic Gain Limiter. Can Be Used As Power Limiter.
      Enables Speaker Protection, Easy Listening
    • Two-Band DRC: Set Two Different Thresholds for Low- and
      High-Frequency Content
    • 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
    • Single-Filter PBTL Support Reduces BOM Cost
    • Thgermal Dissipation, Improving System Stability

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Parametrics Compare all products in Digital I2S Input Class-D

Speaker Channels (Max)
Power to Bridge Tied Load (Max) (W)
Power to Parallel Bridge Tied Load (Max) (W)
Supported Bridge Tied Load (Min) (Ohms)
Closed/Open Loop
Control Interface
Analog Supply (V) (Min)
Analog Supply (V) (Max)
Power Stage Supply (Max) (V)
Audio Input Type
Sampling Rate (Max) (kHz)
Operating Temperature Range (C)
Package Group
Package Size: mm2:W x L (PKG)
0 to 85   
48HTQFP: 81 mm2: 9 x 9(HTQFP)   

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