CapSense Schematic Design
AN66308 - CY8CMBR2044 CapSense® Design Guide, Doc. No. 001-66308 Rev. *F
20
Button Shorted to Ground
If any button is found to be shorted to ground, it is disabled.
Figure 3-8. Button Shorted to Ground
CY8CMBR2044
Button
shorting
Button Shorted to V
DD
If any button is found to be shorted to V
DD
, it is disabled.
Figure 3-9. Button Shorted to V
DD
CY8CMBR2044
Button
shorting
V
DD
Button to Button Short
If two or more buttons are found to be shorted to each other, all of these buttons are disabled.
Figure 3-10. Button to Button Short
CY8CMBR2044
Button
shorting
Button
Improper Value of C
MOD
Recommended value of C
MOD
is 2.2 nF ± 10%.