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20-W Stereo Digital Audio Power Amplifier


The EUA2306 is a 20-W, efficient, digital audio power amplifier with 4 half-bridged power drivers. The EUA2306 is a slave device that all clocks are provided by the external sources. One serial data input allows processing of up to two discrete audio channels and seamless integration to most digital audio processors. The speaker protection circuitry is integrated EUA2306 to limit the amount of current through the speaker.

The EUA2306 also features short-circuit and thermal protection preventing the device from being damaged during a fault condition. The EUA2306 is available in thermally efficient 48-pin TQFP package.


  •  •Audio Input/Output
  • - Wide PVDD Range (8 V to 26 V); 3.3 V Digital Supply
  • - 20W/ch an 8-Ω Load from an 18-V Supply
  • - Supports 8 kHz - 48 kHz Sample Rates Serial Audio Input (LJ/RJ/I2S)
  • •Audio processing
  • - DC Blocking Filters
  • - Channel Volume Control 24 dB to mute
  • - Soft mute
  • •Benefits
  • -Soft Mute
  • - Autodetect: Automatically Detects Sample-rate Changes Eliminating the Need for
  • External Microprocessor Intervention
  • - Thermal and short –circuit protection
  • •Available in TQFO-48 (EP) Package
  • •RoHS compliant and 100% lead(Pb)-free
  • Halogen-Free


  • •Television
  • •iPod¬TM Dock
  • •Sound Bar

Typical Application Circuit

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