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Hi there, can anyone tell me if this data is acceptable? My DAC is giving me a digital signal on the audio output. Data and FS signals are perfect but the BCK seems pretty f****d.   Edited by user Sunday, April 24, 2011 6:55:40 PM(UTC)
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Not sure what to tell you here. Its coming directly from the WM8804, you may need to add some series resistance if your probes present a capacitive load.
Try say 100R.
Also its difficult to say since I have no details of your test setup which is f****d your measurment or the output. :)
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Rank: Member
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thanks for the reply Russ,
I tried 100R in series with similar results.
I removed the WM8804 from the DAC and have it running separately using the optical module and 3 AA batteries as a power supply. I'm using A 12 Mhz BW scope.
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Rank: Administration
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Honestly your at the end of the useful limits of your scope for this type of measurement.
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i tested it with a 200 Mhz scope today and it seems fine. back to trouble shooting. 
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