•  
  •  

Digital Volume Control

This circuit could be 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.

If there are any problems please contact webmaster@electronic-circuits-diagrams.com

Please share & like

Advance Transformer Co.120/277 Volt HID Lamp Ballast 72C5782
$100.0 Advance Transformer Co.120/277 Volt HID Lamp Ballast 72C5782 picture
5 Philips e-Vision 70w Metal halide Ballasts. Model# IMH-70-D-BLSM
$48.0 5 Philips e-Vision 70w Metal halide Ballasts. Model# IMH-70-D-BLSM picture
Kteb-432Ris-1-Tp-Sl 4 Lamp F32T8 120V Electronic Ballast
$17.83 Kteb-432Ris-1-Tp-Sl 4 Lamp F32T8 120V Electronic Ballast picture
4 Units New In Box Philips Bodine B50 Emergency Ballast
$160.0 4 Units New In Box Philips Bodine B50 Emergency Ballast picture
Lutron FDB-T418-120-1 Hi-Lume 5% Dimmable Dimming Ballast for (1) 18W 4-Pin CFL 
$35.0 Lutron FDB-T418-120-1 Hi-Lume 5% Dimmable Dimming Ballast for (1) 18W 4-Pin CFL  picture