Page 1 of 1

Filtering on POT input

Posted: Fri Sep 21, 2012 11:25 pm
by pcsontos
Dear Frank,

I would like to ask you about the chip design on POT inputs.

I run into a problem while wanted to use a pot for inputing time and using with a momentar switch to ground as tap Tempo at the same time. The tap was always out of time. When I tried to examin, I saw that by grounging the pot input the pot value needed quite a lot of time to change and go to zero, I guess there should be some serious LP filtering on Pot inputs. Am I right?

Kind regards

Pete

Posted: Sat Sep 22, 2012 9:26 am
by frank
Hi Pete,

Yes, there is filtering on the POT inputs to avoid any jitter. There has been discussion of this issue and there is a s/w way to increase the response of the POT inputs. See the thread http://www.spinsemi.com/forum/viewtopic.php?t=72

-Frank