User Manual

29
Gesture Conguration Two Register (0xA3)
The Gesture Conguration Two register contains settings that govern wait time, LDR drive current strength and Gesture
gain control. The GWTIME controls the amount of time in a low power mode between gesture detection cycles. GPDRIVE
sets the LDR drive current strength governing LED intensity. GGAIN sets the analog gain associated with the photodiode
output.
Field Bits Description
RESERVED 7 Reserved. Write as 0.
GGAIN 6:5 Gesture Gain Control. Sets the gain of the proximity receiver in gesture mode.
FIELD VALUE GAIN VALUE
0 1x
1 2x
2 4x
3 8x
GLDRIVE 4:3 Gesture LED Drive Strength. Sets LED Drive Strength in gesture mode.
FIELD VALUE LED CURRENT
0 100 mA
1 50 mA
2 25 mA
3 12.5 mA
GWTIME 2:0 Gesture Wait Time. The GWTIME controls the amount of time in a low power mode between
gesture detection cycles.
FIELD VALUE WAIT TIME
0 0 ms
1 2.8 ms
2 5.6 ms
3 8.4 ms
4 14.0 ms
5 22.4 ms
6 30.8 ms
7 39.2 ms
Notes:
1. The wait time register should be congured before GEN is asserted.
2. The time described by GTIME is the actual signal integration time. The LED will be activated slightly longer (typically 1.33 μs) than the integration
time.