Maximum driven shield electrode capacitance

Tip / Sign in to post questions, reply, level up, and achieve exciting badges. Know more

cross mob
Anonymous
Not applicable

Hi,

I'm developing a linear slider on the CY8C4125LQI-483 with a driven shield. Just wondering if there is a maximum limit on the capacitance of the shield electrode before it stops being effective.

Thanks,

Tony

0 Likes
1 Solution
Anonymous
Not applicable

Hello,

We recommend to add a Shield tank capacitor if the shield capacitance crosses 100pf.

But we don't have an exact maximum value on the shield capacitance, having said that a value of 1nF should be good enough for the max shield capacitance.

Also please note to add shield electrode across sensor for a max distance of 1cm.

Thanks,

Ranjith

View solution in original post

0 Likes
1 Reply
Anonymous
Not applicable

Hello,

We recommend to add a Shield tank capacitor if the shield capacitance crosses 100pf.

But we don't have an exact maximum value on the shield capacitance, having said that a value of 1nF should be good enough for the max shield capacitance.

Also please note to add shield electrode across sensor for a max distance of 1cm.

Thanks,

Ranjith

0 Likes