CapSense Schematic Design
AN66308 - CY8CMBR2044 CapSense® Design Guide, Doc. No. 001-66308 Rev. *F
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Figure 3-5. FSS Implementation, Multiple Buttons Touched
LED ON Time
LED ON Time specifies the duration for which GPOx is driven low after CSx is released. LED ON Time can range
from 0 ms to 2000 ms.
Figure 3-6. LED ON Timing
CS0
GPO0
LED ON Time
The LED ON Time duration, D, is configurable from the Delay pin. For different values of resistors connected to the
Delay pin, the time can be varied. The resistor, R
DELAY
, is defined by Equation 4.
Equation 4
Where:
D is a multiple of 20 ms
provides some example values for the Delay pin configuration and the resulting LED ON Time. R
DELAY
resistor tolerance should be less than 1 percent.
