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#1 |
diyAudio Member
Join Date: May 2008
Location: Singapore
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I have a AD1853 DAC differential output current DAC. Can I check if it is okay to use only one of the current output instead of both the outputs as a single ended output DAC?
![]() Thanks. Oon |
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#2 |
diyAudio Member
Join Date: Oct 2009
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I use only one ouput i+ r+ to a resistor to a srpp and is playing music really nice. The bad thing is that i only get 2 miliamps at output and not 4 ma in differential.
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#3 |
diyAudio Member
Join Date: Sep 2007
Location: Hangzhou - Marco Polo's 'most beautiful city'. 700yrs is a long time though...
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That's an interesting point yeah. It makes me wonder if we couldn't use the other channel in an interesting way to get back to the 4mA again. Just thinking aloud here, don't know if this will work but have you heard of mid-side format for stereo?
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I know everything you know about this times 1000 - Amir @ ASR |
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#4 |
diyAudio Member
Join Date: Oct 2009
Location: Brisbane, Australia
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wouldnt you just use some form of instrumentation amp to get SE output using all of the DNR?
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#5 | |
Previously: Kuei Yang Wang
Join Date: Nov 2002
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Hi,
Quote:
Ciao T |
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#6 |
diyAudio Member
Join Date: May 2008
Location: Singapore
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What do you mean load the output equally? How would you do that?
Oon Sent from my Milestone using Tapatalk |
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#7 |
Previously: Kuei Yang Wang
Join Date: Nov 2002
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#8 |
diyAudio Member
Join Date: May 2008
Location: Singapore
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Huh, what do you mean spoke out of turn? Not sure what you mean by that, but an apology is definitely not needed. How did you say I should load them equally?
Oon |
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#9 |
diyAudio Member
Join Date: Dec 2002
Location: US
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oon,
I believe what Thorsten meant was to make sure to use the same impednace on both the + and - outputs of your DAC chip. If you're taking signal from the + line and it's loaded with 3k ohms for example also put 3k ohms across the - output even if you don't take any signal from there. The DAC chip will work best with equal resistance on both output phases. |
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#10 |
diyAudio Member
Join Date: May 2008
Location: Singapore
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Ok, that makes sense, so if I use it on a normal op amp based I/V stage with a voltage at 2.5V, I would then connect the other ouput differential to a 2.5V source as well... correct...?
Oon |
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