•  
  •  

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

1000W AUTO TRANSFORMER BALLAST
$60.0 1000W AUTO TRANSFORMER BALLAST picture
Universal Triad B232IUNVHP-B Fluorescent Ballast Lot Of 10
$36.0 Universal Triad B232IUNVHP-B Fluorescent Ballast Lot Of 10 picture
ADVANCE VEL-2P32-SC 277V ELECTRONIC BALLAST * NEW IN ORIGINAL PACKAGE *
$11.0 ADVANCE VEL-2P32-SC 277V ELECTRONIC BALLAST * NEW IN ORIGINAL PACKAGE * picture
Advance R-2S40-1-TP Rapid Start Ballast Mark III Energy Quantity of 6 BX 6804
$37.5 Advance R-2S40-1-TP Rapid Start Ballast Mark III Energy Quantity of 6 BX 6804 picture
Advance REL-2P17-RH-TP Quick-Start Electronic Fluorescent Lamp Ballast New
$27.5 Advance REL-2P17-RH-TP Quick-Start Electronic Fluorescent Lamp Ballast New picture