hi... i need to design a 0.5w audio amplifier with mute and volume control. the design must allow user to select music or speech signal.
with a power supply of +12v from the secondary of 100KHz switching mode power supply.. high frequency components may be present so i need to filter it away...base band signal is 300mVp-p at 1KHz...
i need a transistor switch circuit for selecting voice, music and mute mode...
thank for ur help
with a power supply of +12v from the secondary of 100KHz switching mode power supply.. high frequency components may be present so i need to filter it away...base band signal is 300mVp-p at 1KHz...
i need a transistor switch circuit for selecting voice, music and mute mode...
thank for ur help
