Regarding recommended design guide of radial pattern

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YuMa_1534086
Level 7
Level 7
Distributor - Macnica (Japan)
500 replies posted 250 sign-ins 10 likes received

Hello Cypress.

Could you please provide recommended design guide of radial pattern?

Below document does not explained much in detail.(Only Figure 2-16)

(clearance between caps, number of caps, caps area, angle, trace length, GND pattern, etc)

=> http://www.cypress.com/file/46081/download

Best Regards.
Yutaka Matsubara

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5 Replies
VenkataD_41
Moderator
Moderator
Moderator
750 replies posted 500 replies posted 250 solutions authored

Hello Matsubara-san,

Please go through of reference kit for radial slider. You can use the same pattern for your design. The layout files for the recommended pattern can be downloaded from the link below:

http://www.cypress.com/documentation/development-kitsboards/cy3280-srm-radial-slider-module-kit

Please reply back if you have any queries.

Thanks

GANI

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YuMa_1534086
Level 7
Level 7
Distributor - Macnica (Japan)
500 replies posted 250 sign-ins 10 likes received

Dear GANI-san.

Thank you for your response.

But all user may not design same radial pattern as CY kit.

Is there check list that describes recommended range for radial pattern?

Best Regards.

Yutaka Matsubara

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YuMa_1534086
Level 7
Level 7
Distributor - Macnica (Japan)
500 replies posted 250 sign-ins 10 likes received

Dear GANI-san.

Can you update this discussion?

Best Regards.

Yutaka Matsubara

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YuMa_1534086
Level 7
Level 7
Distributor - Macnica (Japan)
500 replies posted 250 sign-ins 10 likes received

Dear Cypress.

Can you update this discussion?

Is there check list that describes recommended range for radial pattern?

Best Regards.

Yutaka Matsubara

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Anonymous
Not applicable

The example they listed is recommended for the settings they used in the example project.

If you are wanting to change the radial pattern to be larger or smaller, you will need to analyze what needs to change for it to work. The Capsense code will need to be adjusted for how long is needed to charge and read the pads, and there may be limitations to how large you can make the pads with a fast enough response time.

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