MLX75030 Datasheet, PDF (14/72 Pages) Melexis Microelectronic Systems – Universal ActiveLight Sensor Interface

MLX75030 Universal ActiveLight Sensor Interface
Datasheet
6. Sensor Specific Specifications
DC Operating Parameters T_A = -40°C to 105°C, T_A = 0°C to 70°C (C version), V_DD = 3.0V to 3.6V
(unless otherwise specified)
ActiveLight Channels (Detectors A & B)
Parameter
Active light signal optical
transfer ratio
dc sunlight signal
Symbol
OTR = ^{I LED}
I _PDAB
I_Sun
Test Conditions
fast full scale transition at I_{sunmax tsunrise}
Min Typ Max Units
30
80000
140
900
uA
3.5
ms
min. relative active light
modulation
(referred to received IR signal)
∆I _{PDAB_ min}
I _PDAB
- 400Hz BW,
- max LED current of 1000mA
- 25°C
- dc sun constant
- ActiveLight response time
per channel 2.5ms
0.3
%
Carrier frequency range for
ActiveLight measurement
signal
Input capacitance PDA, PDB
f₀
C_PDA,B
selectable via “SetPF” ^45.7
register, see also 7.4.6
At 1.0 V reverse bias
109.4 kHz
10
pF
DC light measurement range
DC light measurement offset
DC light measurement slope
DC light measurement
lDinCelaigrhittymereraosrurement _word
lDeCnglitghht _measurement
rTeIAsoTluetsitopnulse
Temperature coefficient of
TIA Test pulse
TIA Test pulse step width
Temperature coefficient of
TIA Test pulse step width
TIA Test pulse step width
variation
I_{DC range}
I_{DC offset}
I_{DC sens}
At I_DC = 0uA
Idc range: 0uA -> 275uA
for averaging of 8
ADC_{TIA_test_00}
Tm=e2a7s°uCr,ements
DACA6=0, DACA7=0
Gain Anti-alias Filter=2
ADC Buffer bypassed
TC ADC_{TIA_test_00} DACA6=0, DACA7=0
Gain Anti-alias Filter=2
ADC_{TIA_test_step}
ADC Buffer bypassed
T=27°C,
Gain Anti-alias Filter=2
ADC Buffer bypassed
TC ADC_{TIA_test_step} Gain Anti-alias Filter=2
ADC Buffer bypassed
∆ _{ADC_TIA_TEST _ STEP} Gain Anitalias Filter=2
ADC Buffer bypassed
0
4096 7168
115 150
5
16
13
35035 36182
275
10240
184
12
37570
uA
LSB
LSB/uA
%
Bit
Bit
LSB
-2.78
LSB/K
4458 5932 7770 LSB
-4.8
5
10
LSB/K
%
Error condition Err6
Critical error detected on TIA output, is TIA output outside 1.1V+/- (0.65 … 0.75V)
Note:
• Critical error may occur if the referring active light Channel is disabled and the according diagnostic function is
enabled (see EnChan register).
• Critical error may occur after enabling of the referring active light Channel due to analog settling time.
Table 4 : ActiveLight sensor channels specifications
REVISION 005 – DECEMBER 2013
3901075030
PAGE 14 OF 72