MLX75031 Datasheet, PDF (43/67 Pages) Melexis Microelectronic Systems – Optical Gesture & Proximity Sensing IC

MLX75031
Optical Gesture & Proximity Sensing IC
with Integrated LED Drivers
Datasheet
8.13.0. SetAna register
This register contains some settings of the analog chain.
Bit
7
6
5
4
3
2
1
0
SetAna
VSUP VSUP
LOW1 LOW0
-
-
-
Tdc_ Tdc_ Unity_
pulse1 pulse0 Gain
0x0 Read/Write R/W R/W
R
R
R
R/W R/W R/W
Init
1
0
0
0
0
1
0
1
VSUPLOW<1:0>: defines the threshold voltage at which the critical error flag
Err_VSupL is set
VSUPLOW1
0
0
1
1
VSUPLOW0
0
1
0
1
VSUP Threshold (V)
5
5.5
6
6.5
SetAna<5:3>: not implemented, read as '0'
Tdc_pulse<1:0>: defines the time that the DC component in the Active Light pulse
signal is enabled before the actual Active Light pulses start. The time mentioned in the
table below is the delay time as generated by the digital logic.
Tdc_
pulse1
0
0
1
1
Tdc_
pulse0
0
1
0
1
Delay time
(in µs, +/-8%)
50
100
200
400
Unity_Gain: only during Active Light measurements: 1=ADC buffer is bypassed, 0=ADC
gain stage is used (gain is set with bits GAIN_BUF<4:0> in register 'GainBuf')
REVISION 001 – JANUARY, 2013
39010xxxxx
Page 43 of 43