CY8CMBR3116

[kapa_4663341]

Dear Sir

I am made Design for 10 Button  Cap-sense with use of CY8CMBR3116 IC.

i follow cypress AN90071 - CY8CMBR3XXX Application note.however i have made Design for capacitive proximity sensor with Liquid Tolerance.
please check schematic if any suggestion regarding Design .

[BragadeeshV · Accepted solution]

Hi kapa_4663341​,

Please note the following suggestions:

1. Use 330 ohms series resistors on I2C lines for better EMC performance. Use 4.7 kohms pull up resistors as per I2C spec.

2. Use 1 uF parallel 0.1 uF decoupling caps in VDD pin

There are no other issues with the schematic. Please refer to the MBR3 capsense design guide for layout considerations.

Please build a prototype of the design before going for production.

Regards,

Bragadeesh

[kapa_4663341]

Dear Sir

thanks for reply