Monday, August 18, 2014

400W Subwoofer amplifer circuit

Features
  • Class-T architecture with proprietary DPP 
  • “Audiophile” Sound Quality 
  • Full Audio Bandwidth, 20Hz to 20kHz 
  • High Efficiency 
  • Supports wide range of output power levels and output loads by changing supply voltage  and external Mosfets 
  • Compatible with unregulated power supplies 
  • Output over-current protection 
  • Over- and under-voltage protection 
  • Over-temperature protection 
  • 48-Pin LQFP Package
Description

The TDA1400 is a one-channel, Amplifier Driver that uses Tripath’s proprietary Digital Power Processing  (DPPTM) technology. The TDA1400 offers higher integration over previous Tripath amplifiers driver  chipsets while providing exceptional audio performance for real world applications. Class-T amplifiers offer both the audio fidelity of Class-AB and the power efficiency of Class-D amplifiers. The TDA1400 is typically configured as a single supply, bridged output. This makes the power supply requirements simpler and maximizes the output power for a given voltage rail. Additionally, the TDA1400 can be configured as a split supply, bridged amplifier, with the addition of some external components. The TDA1400 is capable of full range operation but the target application is subwoofers due to the high output power capability and single channel operation.

Circuit diagram
400W Subwoofer amplifer circuit

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