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Hello.
Where can I get a detailed document about trackpad design guide?
I found AN64846_Getting Started with CapSense.pdf but there is simple layout for trackpads.
I want to know detailed information about that (diamond pattern size, layout...). Of course document would be better.
The application is a TV remote controller.
Thanks and Regards,
YS
Solved! Go to Solution.
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Hi,
I understand you are looking for the CapSense diamond pattern.
The diamond pattern is created by the Mutual-Capacitance method.
It is supported by CSX (Mutual-Capacitance) of PSoC 4S series,
You may find the following demo kit helpful.
/* PSoC4S series pioneer kit URL */
https://www.cypress.com/documentation/development-kitsboards/cy8ckit-041-psoc-4-s-series-pioneer-kit
It contains information on diamond patterns In "CY8CKIT-041-40XX Design Files.zip".
/* CapSense Component Datasheet URL */
https://www.cypress.com/documentation/component-datasheets/psoc-4-capacitive-sensing-capsense
Describes the details of CSX (Mutual-Capasitance) in "Component - CapSense P4 V7.0.pdf".
Regards,
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Hi,
I understand you are looking for the CapSense diamond pattern.
The diamond pattern is created by the Mutual-Capacitance method.
It is supported by CSX (Mutual-Capacitance) of PSoC 4S series,
You may find the following demo kit helpful.
/* PSoC4S series pioneer kit URL */
https://www.cypress.com/documentation/development-kitsboards/cy8ckit-041-psoc-4-s-series-pioneer-kit
It contains information on diamond patterns In "CY8CKIT-041-40XX Design Files.zip".
/* CapSense Component Datasheet URL */
https://www.cypress.com/documentation/component-datasheets/psoc-4-capacitive-sensing-capsense
Describes the details of CSX (Mutual-Capasitance) in "Component - CapSense P4 V7.0.pdf".
Regards,
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Additional Infomation
The Getting Started with CapSense.pdf describes the CSD (Self-Capacitance method).
Generally, regarding the capacity of the sensor,
Self-capacitance method up to about 60pF.
Mutual-capacitance method up to about 200pF.
These depend on the size, wiring and material of the sensor.
For example,
64-mil, FR4, 2 layer board, a 7-mil thick, 1-inch long copper pattern corresponds to approximately 2 pF parasitic capacitance.
I hope it helps you.
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Thanks for your reply.
Regards,
YS