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TDA7379: AUDIO POWER AMPLIFIER

TDA7379: AUDIO POWER AMPLIFIER

The TDA7379 is a new technology class AB audio processor amplifier able to work either in DUAL BRIDGE or QUAD SINGLE ENDED configuration.
The exclusive fully complementary structure of the output stage and the internally fixed gain guarantee the highest power performances with extremely reduced component count. The on board clip detector simpli- fies gain compression operation. The fault diagnostic makes it possible to detect mistakes during the set assembly and wiring in the equipment.

 

Features

  • HIGH OUTPUT POWER CAPABILITY
    2 x 38W/4Ω @18V, 1KHz, 10%
    4 x 11W/4Ω @18V, 1KHz, 10%
    2 x 20W/8Ω @18V; 1KHz, 10%
    4 x 13W/2Ω @15V, 1KHz, 10%
    2 x 34W/8Ω @ 22V, 1kHz, 10%
  • MINIMUM EXTERNAL COMPONENTS COUNT:
    – NO BOOTSTRAP CAPACITORS
    – NO BOUCHEROT CELLS
    – INTERNALLY FIXED GAIN (26dB BTL)
  • ST-BY FUNCTION (CMOS COMPATIBLE)
  • NO AUDIBLE POP DURING ST-BYOPERATIONS
  • DIAGNOSTIC FACILITIES
    – CLIP DETECTOR
    – OUT TO GND SHORT
    – OUT TO VS SHORT
    – SOFT SHORT AT TURN-ON
    – THERMAL SHUTDOWN PROXIMITY

Protections

  • OUPUT AC/DC SHORT CIRCUIT
  • SOFT SHORT AT TURN-ON
  • OVERRATING CHIP TEMPERATURE WITHSOFT THERMAL LIMITER
  • FORTUITOUS OPEN GND
  • REVERSED BATTERY
  • ESD

Applications

  • Cable and Satellite Set-Top Boxes
  • TV and HDTV Sets
  • A / V Switchers
  • Personal Video Recorders (PVR)
  • Security and Surveillance
  • Video Distribution
  • Automotive (In-Cabin Entertainment)
  • 8-Input, 6-Output Video Switch Matrix with Output Drivers, Input Clamp, and Bias Circuitry
    4 X 13 - 2 X 38W AUDIO POWER AMPLIFIER
    2 X 13 + 1 X 38W AUDIO POWER AMPLIFIER

 

PCB Thermal Layout Considerations

  • Understand the system power requirements and envi- ronmental conditions.
  • Maximize thermal performance of the PCB.
  • Consider using 70μm of copper for high-power designs.
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