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Datasheet

TDA8922
(Objective)
20-Mar-03, 36 pages, 749 kB

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2 x 25 W class-D power amplifier

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This product has been discontinued; click here for more information.

General description

The TDA8922 is a high efficiency class-D audio power amplifier with very low dissipation. The typical output power is 2 X 25 W.

The device is available in the HSOP24 power package with a small internal heatsink and in the DBS23P through-hole power package. Depending on the supply voltage and load conditions, a very small or even no external heatsink is required. The amplifier operates over a wide supply voltage range from +-12.5 to +-30 V and consumes a very low quiescent current.

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Features

  • High efficiency (~90pct)
  • Operating supply voltage from +-12.5 to +-30 V
  • Very low quiescent current
  • Low distortion
  • Usable as a stereo Single-Ended (SE) amplifier or as a mono amplifier in Bridge-Tied Load (BTL)
  • Fixed gain of 30 dB in Single-Ended (SE) and 36 dB in Bridge-Tied Load (BTL)
  • High output power
  • Good ripple rejection
  • Internal switching frequency can be overruled by an external clock
  • No switch-on or switch-off plop noise
  • Short-circuit proof across load and to supply lines
  • Electrostatic discharge protection
  • Thermally protected.

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Block diagrams/pinning

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Disclaimer

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