MLX75030 Datasheet, PDF (55/72 Pages) Melexis Microelectronic Systems – Universal ActiveLight Sensor Interface

MLX75030 Universal ActiveLight Sensor Interface
Datasheet
49
110001
17
9200.51
9233.95
9267.39 7862.91 7896.35
50
110010
18
9267.39
9300.83
9334.27 7929.79 7963.23
51
110011
19
9334.27
9367.71
9401.15 7996.67 8030.11
52
110100
20
9401.15
9434.59
9468.03 8063.55 8096.99
53
110101
21
9468.03
9501.47
9534.91 8130.43 8163.87
54
110110
22
9534.91
9568.35
9601.79 8197.31 8230.75
55
110111
23
9601.79
9635.23
9668.67 8264.19 8297.63
56
111000
24
9668.67
9702.11
9735.55 8331.07 8364.51
57
111001
25
9735.55
9768.99
9802.43 8397.95 8431.39
58
111010
26
9802.43
9835.87
9869.31 8464.83 8498.27
59
111011
27
9869.31
9902.75
9936.19 8531.71 8565.15
60
111100
28
9936.19
9969.63
10003.07 8598.59 8632.03
61
111101
29
10003.07
10036.51
10069.95 8665.47 8698.91
62
111110
30
10069.95
10103.39
10136.83 8732.35 8765.79
63
111111
31
10136.83
10170.27
10203.71 8799.23 8832.67
Table 23: 6-Bit Temperature curve offset information for a typical slope of -67 LSB/K.
7929.79
7996.67
8063.55
8130.43
8197.31
8264.19
8331.07
8397.95
8464.83
8531.71
8598.59
8665.47
8732.35
8799.23
8866.11
7.4.12. EnChan register
This register contains bit to enable/disable active light and ambient light channels.
EnChan
0xD
Bit
Read/Writ
e
Init
7
EN_
TEMP
R/W
1
6
EN_
DIAG_A
R/W
1
5
EN_
DIAG_B
R/W
1
4
EN_
CH_A
R/W
1
3
EN_
CH_B
R/W
1
2
EN_
CH_C
R/W
1
1
EN_
CH_D
R/W
1
0
EN_
DIAGA
MB
R/W
1
EN_TEMP: 1 = temperature channel is in use, 0 = temperature channel is not in use
EN_DIAG_A: 1 = enables diagnostics on active light channel A, 0 = disables the diagnostics
EN_DIAG_B: 1 = enables diagnostics on active light channel B, 0 = disables the diagnostics
EN_CH_A: 1 = active light channel A is enabled (TIA + Demodulator + Anti-Aliasing Filter +
SC-LPF), 0 = active light channel A is completely switched off to reduce current consumption
EN_CH_B: 1 = active light channel B is enabled (TIA + Demodulator + Anti-Aliasing Filter +
SC-LPF), 0 = active light channel B is completely switched off to reduce current consumption
EN_CH_C: 1 = ambient light channel C is in use, 0 = ambient light channel C is not in use
EN_CH_D: 1 = ambient light channel D is in use, 0 = ambient light channel D is not in use
EN_DIAGAMB: 1= ambient diagnosis is possible, 0= ambient diagnosis is not possible
The bits EN_CH_A/EN_CH_B/EN_DIAGAMB can be used to switch off channels that are not needed, and thus reducing the
current consumption.
When going into Sleep or Standby the setting of these bits is ignored, all channels will be switched off independently of
EN_CH register contents.
The bits EN_TEMP/EN_CH_C/EN_CH_D/EN_DIAGAMB are used to indicate which channels are in use and which channels are
not in use. Terminals, which are not connected, must be disabled in the ENChan register. Otherwise error flags might occur.
In case all EN_CH_C/D/DIAGAMB bits are set to zero, but an ambient measurement is requested, then the Command Invalid
status flag will be set high. The measurement itself will not be executed.
REVISION 005 – DECEMBER 2013
3901075030
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