View ba534 datasheet:

Audio ICs 9V / 2.3W single-channel power amplifier BA534 The BA534 is a monolithic power amplifier designed for portable cassette players and radios. With a 9V power supply, it has a rated output of 2.3W into a 4? load (THD = 10%). It has high ripple rejection ratio, and the “pop” noise when power is applied has been suppressed to an absolute minimum. FApplications Portable cassette recorders and radios. FFeatures 1) High power output. 2) The “pop” noise that occurs when the power is ap- When VCC = 9V, RL = 4? and THD = 10%: POUT = plied is extremely low. 2.3W 3) Excellent ripple rejection ratio. When VCC = 9V, RL = 3? and THD = 10%: POUT = 2.8W FBlock diagram FAbsolute maximum ratings (Ta = 25_C) 386 Audio ICs BA534 FInternal circuit configuration FElectrical characte