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

  • TPA3110D2  -  Analog Input Audio Amplifier (BTL Output)
  • TPA3123D2  -  Analog Input Audio Amplifier (SE Output)
  • TAS5710  -  I2S Digital Input Audio Amplifier (Closed-Loop)
  • 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 Mid/High-Power Class D Amplifiers

Max. Power to Single-Ended Load
Max. Power to Bridge Tied Load
Max. Power to Parallel Bridge Tied Load
Min. Supported Single-Ended Load
Min. Supported Bridge Tied Load
Min. Supported Parallel Bridge Tied Load
Closed/Open Loop
Max Speaker Outputs (#)
Input Type
Control Type
Analog Supply Min [V]
Analog Supply Max [V]
Power Stage Supply Min (V)
Headphone Channels
Power Stage Supply Max (V)
Operating Temperature Range (C)
Approx. Price (US$)
Dynamic Range Control (DRC)
Digital Supply Max [V]
Digital Supply Min [V]
Volume Control
TAS5715 TAS5707A TAS5709A TAS5711 TAS5717 TAS5719 TAS5727
      16         10    
25     21     20     21     10     20     25    
50         42.8          
      4         2    
4     6     6     6     4     4     4    
4         4          
Open     Open     Open     Open     Open     Open     Open    
2     2     2     3     2     2      
Digital     Digital     Digital     Digital     Digital     Digital     Digital    
Software     Hardware
Software     Software     Software     Software    
3     3     3     3     3     3     3    
3.6     3.6     3.6     3.6     3.6     3.6     3.6    
8     8     8     8     4.5     4.5     8    
        Yes     Yes      
26     26     24     26     26     26     26    
Catalog     Catalog     Catalog     Catalog     Catalog     Catalog     Catalog    
0 to 85     0 to 85     0 to 85     0 to 85     0 to 85     0 to 85     0 to 85    
2.25 | 1ku     1.80 | 1ku     2.40 | 1ku     2.35 | 1ku     1.65 | 1ku     1.95 | 1ku     2.00 | 1ku    
Class D     Class D     Class D     Class D     Class D     Class D     Class D    
2-Band     Single-Band     2-Band     2-Band     2-Band     2-Band     2-Band    
3.6     3.6     3.6     3.6     3.6     3.6     3.6    
3     3     3     3     3     3     3    
Yes     Yes     Yes     Yes     Yes     Yes     Yes    

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