Go Back   Home > Forums > >
Home Forums Rules Articles diyAudio Store Blogs Gallery Wiki Register Donations FAQ Calendar Search Today's Posts Mark Forums Read

Chip Amps Amplifiers based on integrated circuits

digital pot for tone control?
digital pot for tone control?
Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Reply
 
Thread Tools Search this Thread
Old 23rd May 2005, 10:44 AM   #1
demons_wing is offline demons_wing  Canada
diyAudio Member
 
Join Date: Apr 2004
Location: BC
Default digital pot for tone control?

i would like to ask whether it is possible to use digital pots instead of normal pots for a baxandall one control circuit?..any suggestions?
  Reply With Quote
Old 23rd May 2005, 01:58 PM   #2
jackinnj is offline jackinnj  United States
diyAudio Member
 
jackinnj's Avatar
 
Join Date: Apr 2002
Location: Llanddewi Brefi, NJ
digital pot for tone control?
you have lots of choices -- from Texas Instruments, Analog Devices, Maxim, Microchip -- just make sure to keep voltages within the tolerances specified.

Nat Semi has a line of digital pots with a logarithmic taper.
  Reply With Quote
Old 24th May 2005, 01:17 PM   #3
Gcollier is offline Gcollier  Canada
diyAudio Member
 
Join Date: Mar 2003
Location: Windsor
Default Re: digital pot for tone control?

Quote:
Originally posted by demons_wing
i would like to ask whether it is possible to use digital pots instead of normal pots for a baxandall one control circuit?..any suggestions?

Take a look at the DS1809 from Dallas Semi, It has a simple contact closure interface that avoids the need to use a microcontroller and also has non volatile memory so your settings are retained.
__________________
If you take something apart and put it back together again enough times, eventually you will have two of them.
  Reply With Quote
Old 24th May 2005, 09:17 PM   #4
G4ME is offline G4ME  United States
diyAudio Member
 
Join Date: Jun 2003
Location: Location: Location
Send a message via AIM to G4ME
Ohhh, Free samples ordered

use that with a PIC chip and an encoder with an LCD you have one sweet GC for and additional 30 bucks or so
__________________
Two little mice fell in a bucket of cream. The first mouse quickly gave up and drowned. The second mouse, wouldn't quit. He struggled so hard that eventually he churned that cream into butter and crawled out.
  Reply With Quote
Old 25th May 2005, 09:22 AM   #5
Vidalgo is offline Vidalgo  Israel
diyAudio Member
 
Join Date: Jun 2004
Location: Jerusalem
Quote:
just make sure to keep voltages within the tolerances specified.
Not only voltages must be within spec. "Wiper" current also have a very limited max. value. High-impedance load to wiper must been provided.

Generally, the common problem with digital pots is that most of them are working from a single-supply voltage. So, any AC input signal must been biased to half of this supply voltage.
  Reply With Quote

Reply


digital pot for tone control?Hide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Tone control pre-amp digi01 Chip Amps 16 13th June 2011 07:18 AM
i need preamp schematics w/o tone control or volume control hernanstafe Parts 7 30th January 2008 03:12 AM
Digital volume/tone control in Tube amps tubeeater Tubes / Valves 13 21st December 2007 12:08 PM
TI's Tone control JhonDoe Chip Amps 26 13th July 2004 01:29 AM


New To Site? Need Help?

All times are GMT. The time now is 08:50 PM.


Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 16.67%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Copyright ©1999-2017 diyAudio
Wiki