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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 .
Solved! Go to Solution.
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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
Bragadeesh
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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
Bragadeesh
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Dear Sir
thanks for reply