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Audio ICs

BA3430S / BA3430F / BA3430FS

5) Gain settings for the mute detection circuit

The gain settings for the mute detection circuit are shown below. The reference voltage of the comparator circuit is set

detection level during playback is obtained as follows:

a. The reference voltage of the comparator circuit is V =

*13.5dBV or more.

b. From the above chart, the gain at 5kHz during play-

back is 80dB.

c. Therefore, the output / input level of mute detection is

*13.5 * 80 = *93.5dBV.