BA5152F Просмотр технического описания (PDF) - ROHM Semiconductor

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производитель

BA5152F

1.5V / 15mW dual power amplifier

ROHM Semiconductor 

Audio ICs

FComplete application example circuit

BA5152F

FCircuit description

(1) Power supply block

The BA5152F has an internal power switch, so the VCC

terminal (pin 9) connects directly to the power source. Pin

13 is the power switch, and if it is left open, no bias current

flows in the circuit and the IC will not operate.

(2) Mute circuit block

When pin 13 is connected to VCC, the IC starts up, but the

mute circuit operates to suppress a “pop” sound from be-

ing generated. The time constant of the power-on mute

circuit is determined by the capacitor connected between

pins 14 and 15. It is also possible to force the mute circuit

to operate by connecting pin 16 to VCC. There is no time

constant in this case.

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