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2 x 25 W class-D power amplifier with TDA8922

2016-04-19 10:15  
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Circuit diagram 2 x 25 W class-D power amplifier with TDA8922

General descriptionShow

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.

2 x 25 W class-D power amplifier with TDA8922


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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