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

Digital Line Level DACs, Digital Crossovers, Equalizers, etc.

Yet another I/V Stage & LPF for DACs
Yet another I/V Stage & LPF for DACs
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
Thread Tools Search this Thread
Old 7th June 2010, 04:20 PM   #1
unixdeveloper is offline unixdeveloper  United States
diyAudio Member
Join Date: Jun 2010
Location: SF Bay Area
Yet another I/V Stage & LPF for DACs
Default Yet another I/V Stage & LPF for DACs

Hello all,

I am working on a new I/V design for myself and thought I would share it with the community and get some feedback.

I want this to be a universal so that it can accept Current or Voltage source. The second stage is a LPF which can be configured as Butterworth or Bessel.

Please provide your comments and suggestions.

I know there are a lot of IV - LPFs out there in the market... I wanted to build something on my own, hence this excercise.
Attached Images
File Type: jpg DAC IV-LPF.jpg (120.1 KB, 238 views)

Last edited by unixdeveloper; 7th June 2010 at 04:36 PM.
  Reply With Quote
Old 8th June 2010, 02:28 PM   #2
Hisatugo is offline Hisatugo  Brazil
diyAudio Member
Hisatugo's Avatar
Join Date: May 2003
Location: Sao Paulo-Brazil
Default your design?

Hi, fellow... welcome to the DIYAudio forum...

I think most active people here are going into passive solution... not my case.

My new design for DAC is getting very same circuit you posted... it is in TI Datasheet for various DAC ICs... PCM1794A in my circuit.

I think Bessel approach would do enough as the cutting frequency stays away the 40KHz region... I'm doing it around 44KHz as data incomming DAC chip is 24/96.

I think there's no magic... just trading limits for ripple&attenuation&phase ...
I love DIY. And love electronics also. But I refresh me everyday that my real passion is MUSIC.
  Reply With Quote


Yet another I/V Stage & LPF for DACsHide 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
Paralleling up DACs, will the output stage overloaded? PatPet Digital Source 0 25th September 2004 01:06 PM
SRPP & DACs hacknet Tubes / Valves 1 1st March 2004 09:36 PM
Audio DACs, Instrumentation DACs. Brian Guralnick Digital Source 10 3rd November 2002 04:56 PM
Converintg analog stage to balanced on dual diff dacs? check pic. kasra Digital Source 14 31st August 2002 10:11 PM
DSP LPF with zero phase-shift, & filter design software. Circlotron Digital Source 5 5th August 2002 06:18 PM

New To Site? Need Help?

All times are GMT. The time now is 03:43 AM.

Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 15.00%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Copyright ©1999-2017 diyAudio