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QN9080 - ADC Timing Test

Question asked by Shai Berman on May 21, 2020
Latest reply on May 25, 2020 by Mario Ignacio Castaneda Lopez

Hello Team,


My customer is using QN9080 for his new design, the customer has tested the ADC Timuung by trigger sample in single-mode and measured the time till finished to convert the results and he found out all the conversion process took 200us which is a lot.

Attached you find the sample program which reproduces the conversion results in the attached picture:

- In the picture, the Yellow channel on the scope represents the CTIMER output pin which is set to toggle mode
- In the picture, the Green channel on the scope represents the pin which is flicked on-and-off once ACD conversion is done
- In the picture, see the time gap between two samples to be ~200us, where we would expect a maximum of ~35us



please advise back, thanks in advance 

kind regards,