diyAudio

diyAudio (http://www.diyaudio.com/forums/)
-   Digital Line Level (http://www.diyaudio.com/forums/digital-line-level/)
-   -   PCM1704 dirty output (http://www.diyaudio.com/forums/digital-line-level/218237-pcm1704-dirty-output.html)

q-rz 20th August 2012 09:21 AM

PCM1704 dirty output
 
2 Attachment(s)
sorry if it's a very basic question, but i can't figure it out myself...
the attached waveforms were captured while playing back an 1khz 0dbfs sine with 8x oversampling (fs=44.1khz). the i/v stage is an 8 ohm resistor to ground (for this measurement).
what i was expecting is a relatively pure staircase pattern. i assume there is some high frequency dirt on the signal. do you guys have any idea?

Lupulroz 23rd August 2012 12:29 PM

It appears to be random noise; most likely is measurement-related. Try a bigger value for the IV resistor like 100 ohms to see if looks the same.


All times are GMT. The time now is 10:53 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