MLX75030 Datasheet, PDF (43/72 Pages) Melexis Microelectronic Systems – Universal ActiveLight Sensor Interface

MLX75030 Universal ActiveLight Sensor Interface
Datasheet
7.4.1. SetAna register
This register contains some settings of the analog chain.
SetAna
0x0
Bit
Read/Write
Init
7
Tdem3
R/W
0
6
Tdem2
R/W
0
5
Tdem1
R/W
0
4
Tdem0
R/W
0
3
LEDDRV_HG
R/W
0
2
Tdc_
pulse1
R/W
1
1
Tdc_
pulse0
R/W
0
0
Unity_Gain
R/W
1
Tdem<3:0>: changes the demodulator delay time in the active light channel
Tdem3 Tdem2 Tdem1 Tdem0 Delay time (in µs, +/-5%)
0
0
0
0
0
0
0
0
1
0.4
0
0
1
0
0.8
0
0
1
1
1.2
0
1
0
0
1.6
0
1
0
1
2
0
1
1
0
2.4
0
1
1
1
2.8
1
0
0
0
3.2
1
0
0
1
3.6
1
0
1
0
4
1
0
1
1
4.4
1
1
0
0
4.8
1
1
0
1
5.2
1
1
1
0
5.6
1
1
1
1
6
LEDDRV_HG: 1 = selects high gain mode of LED driver, 0 = selects low gain mode
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
Tdc_
pulse1
0
0
1
1
Tdc_
pulse0
0
1
0
1
Delay time
(in µs, +/-5%)
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 005 – DECEMBER 2013
3901075030
PAGE 43 OF 72