TDA8922CTH

2× 75瓦D类功率放大器 2 X 75 W class-D power amplifier

General description

The TDA8922C is a high-efficiency Class D audio power amplifier. Typical output power is 2×75 W with a speaker load impedance of 6Ω. The TDA8922C is available in both HSOP24 and DBS23P power packages. The amplifier operates over a wide supply voltage range from±12.5 V to±32.5 V and features low quiescent current consumption.

Features

Pin compatible with TDA8950/20C for both HSOP24 and DBS23P packages

Symmetrical operating supply voltage range from±12.5 V to±32.5 V

Stereo full differential inputs, can be used as stereo Single-Ended SE or mono Bridge-Tied Load BTL amplifier

High output power in typical applications:

          SE 2×75 W, RL=6ΩVDD=30V; VSS=−30 V

          SE 2×60 W, RL=8ΩVDD=30V; VSS=−30 V

         BTL 1×155 W, RL=8ΩVDD=25V; VSS=−25 V

Low noise

Smooth pop noise-free start-up and switch off

Zero dead time switching

Fixed frequency

Internal or external clock

High efficiency

Low quiescent current

Advanced protection strategy: voltage protection and output current limiting

Thermal FoldBack TFB

Fixed gain of 30 dB in SE and 36 dB in BTL applications

Fully short-circuit proof across load

BD modulation in BTL configuration