This circuit is used
for replacing your manual volume control in a stereo
amplifier. In this circuit, push-to-on switch S1 controls
the forward (volume increase) operation of both channels
while a similar switch S2 controls reverse (volume decrease)
operation of both channels.
A readily available IC from
Dallas semiconductor, DS1669 is used here.
FEATURES:
- Replaces mechanical variable resistors
- Electronic interface provided for digital as well as manual control
- Wide differential input voltage range between 4.5 and 8 volts
- Wiper position is maintained in the absence of power
- Low-cost alternative to mechanical controls
- Applications include volume, tone, contrast,brightness, and dimmer control
The
circuit is extremely simple and compact requiring
very few external components.
The
power supply can vary from 4.5V to 8V. (DS1669 Digital Volume Control circuits.)
No comments:
Post a Comment