tapping differential outputs - diyAudio
Go Back   Home > Forums > Source & Line > Digital Line Level

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

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 8th July 2010, 02:43 AM   #1
diyAudio Member
 
Join Date: Apr 2010
Default tapping differential outputs

I'm working on a DAC chip with differential outputs.

I've accidentally lifted L+ and R- pads from the circuit board.

Is there any reason I can't use L- and R+ outputs? Would this result in throwing the speakers out of phase?
  Reply With Quote
Old 8th July 2010, 06:03 AM   #2
Calvin is offline Calvin  Germany
diyAudio Member
 
Calvin's Avatar
 
Join Date: Nov 2004
Location: close to Basel
Hi,

it depends on the topology of the current sources within the DAC.
But most current steering DACs I know must have their outputs connected to a low-impedance current path. For example You could use a single DAC-output of the PCM1794A (and alikes) if You connect the inverted partner output to gnd.

jauu
Calvin
  Reply With Quote
Old 8th July 2010, 01:07 PM   #3
diyAudio Member
 
Join Date: Apr 2010
This is a CS4397 that has voltage source outputs.
  Reply With Quote
Old 8th July 2010, 02:30 PM   #4
RIP
 
Join Date: Oct 2005
Location: Central Florida
Yes, your speakers will be 180 degrees out of phase.
  Reply With Quote
Old 8th July 2010, 07:25 PM   #5
diyAudio Member
 
Join Date: Apr 2010
Managed to tap the L- and R- pins right on the chip.

I need to stop screwing with this DAC.
  Reply With Quote

Reply


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
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Differential outputs as source for gainclone? terranigma Chip Amps 8 4th April 2008 05:56 AM
please advise.. ext. LPF summing differential outputs by an opamp ASSaBeong Digital Source 0 17th May 2006 11:15 AM
Please advise a 20- or 24-bit Audio Codec with Differential Inputs/Outputs. skpb Digital Source 2 9th January 2006 03:27 PM


New To Site? Need Help?

All times are GMT. The time now is 09:33 AM.


vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd.
Copyright 1999-2014 diyAudio

Content Relevant URLs by vBSEO 3.3.2