PSoC 5 CapSense

[ueze_2275911]

AN85951 mentions PSoC 4 and 6 but not 5. Is this not supported, or what am I missing?

[BragadeeshV · Accepted solution]

Hi ueze_2275911​,

Please refer to app note AN75400 - PSoC® 3 and PSoC® 5LP for PSoC 5 CapSense design guide.

https://www.cypress.com/file/45441/download

Regards,

Bragadeesh

[ueze_2275911]

Are there any fundamental differences between CapSense in PSoC 3/5 vs 4/6 ?

[BragadeeshV]

Hi ueze_2275911​,

PSoC 3/5 uses an older generation of CapSense in it. The CapSense block present in the latest PSoC devices such as PSoC 4 and 6 uses the latest generation of CapSense that has better SNR, high parasitic capacitance support and higher accuracy.,

We highly recommend you to use latest generation of CapSense devices (PSoC 4S/ PSoC 6) devices for newer designs.

Also, the basic working of CapSense in both these devices is the same, except that PSoC 3/5 uses UDB resources for CapSense whereas PSoC 4/6 has dedicated hardware block for CapSense.

Regards,

Bragadeesh