1701 inputs appear to be swapped
I am checking a 1701 prototype card that we built (not an evaluation card). My signal is going into pin 4 which is ADC0. But on the input1 port in Sigma Studio, the signal is coming out on pin 1. I have pin 0 and pin 1 check boxes checked on the input1 port. And I was expecting ADC0 to come out on pin 0. The signal to ADC1 pin 2 comes out on pin 0 in Sigma Studio.
Can someone help?
Thanks,
Bruce
Audio Signal Processors
input
adc1
swapped
sigmastudio
SigmaDSP Audio Processors
adc0
adau1701
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Hi Bruce,
SigmaStudio is correct, but the datasheet pin diagram is incorrect. We're aware of this typo and updates to the datasheet are underway. The udpated datasheet should be made public very soon.
Here is the updated diagram and the corresponding excerpt from the pin-out table. This change will apply to the ADAU1701, ADAU1702, and ADAU1401A.
Sorry for the confusion. If you've already made your project hardware, the best fix is to simply swap the input channels in SigmaStudio.
Thanks for the update.
-Bruce
It looks like this error exists on the EVAL-ADAU170XEBZ eval board as well. Just a heads-up for those using it.
Andrew
Thanks for pointing that out, audiolab1.
The boards were designed based on the datasheet, so the error carried through to both the EVAL-ADAU170xZ and the EVAL-ADAU1701MINIBZ boards.
For evaluation purposes, simply swap the inputs in SigmaStudio.
This question has been closed by the EZ team and is assumed answered.
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