Digital Volume Controller

If you need digital volume control, then this circuit will great for you. Just press the button and you will be able to increase and decrease the volume level. This circuit is for 1 kanal only. For stereo audio, you need to build 2 similiar circuit and use push button switch which have double input and double output.




Download this schematic diagram.




Datasheet semiconductor download. (PDF Format)

1. DS1669