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CSRA64215 > PCM5102A - I2S - No sound
CSRA64215 > PCM5102A - I2S - No sound
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Old 12th January 2018, 11:31 PM   #11
maxdatec is offline maxdatec  Sweden
diyAudio Member
Join Date: Nov 2017
Finally got myself a oscilloscope. I guess it's a must when working on projects like this.

Found out that the CRS module sure have 1.8v output logic. Seems like the level shifter is not capable to replicate the signal:

Click the image to open in full size.
CSR Clock signal - Green | Level shifter output - Yellow

I guess I need another level shifter to get this compo to work?
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Old 20th January 2018, 08:07 PM   #12
PaulFrost is offline PaulFrost
diyAudio Member
Join Date: Aug 2017
Yeah, it is possible that there is too much parasitic capacitance on the line so it cannot be driven to high and low levels in time. I suspect that you have this on a breadboard or something?
Disclaimer: Employed by Texas Instruments as an Applications Engineer with Precision and Audio DACs
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