Audio ICs
BA3577FS
FCircuit operation
(1) The BA3577FS operates at the timing chart shown below, which prevents popping noises in the headphone output.
(2) The ripple filters (pins 1 and 2) and bias amplifiers (pins 3 and 4) of the BA3577FS cannot be used as external power
supplies or reference voltages.
(3) The BA3577FS outputs a BEEP signal only when the PWSTB pin (pin 7) and the MUTE pin (pin 9) are HIGH. Also,
input a rectangular waveform of 500Hz to 5kHz with an amplitude from the GND to VCC to the BEEP IN pin (pin 11).
825