How is the hardware mute of NJU72343 done and the internal circuit operation of each channel.
How is the hardware mute of NJU72343 done and the internal circuit operation of each channel.
Audio Signal Processing
The hardware mute function of the NJU72343 mutes the output of the selected channel when the MUTE pin (15PIN) is set to Low level. The internal equivalent circuit diagram of each channel (InX to OutX, X:A to H) is shown below. The input stage of the operational amplifier is switched by hardware mute, and when muted, the input pins of the operational amplifier are connected to GND.
