AK9750 Datasheet, PDF (34/49 Pages) Asahi Kasei Microsystems – IR Sensor IC with I2C I/F

[AK9750]
7). IRxL, IRxH: Measurement Data of IR sensor (x= 1, 2, 3, 4) (Read Only Registers)
Address
Name D7
D6
D5
D4
D3
D2
D1
06,08,0A,0C H IRxL ^{IRxL_7 IRxL_6 IRxL_5 IRxL_4 IRxL_3 IRxL_2 IRxL_1}
07,09,0B,0D H IRxH ^{IRxH_15 IRxH_14 IRxH_13 IRxH_12 IRxH_11 IRxH_10 IRxH_9}
Reset
0
0
0
0
0
0
0
D0
IRxL_0
IRxH_8
0
Measurement Data of IR sensor
IRxL [7:0]: Least significant 8-bits in output data
IRxH [15:8]: Most significant 8-bits in output data
16-bit data is stored in tow’s compliment format.
Table 14.2. Measurement Data of IR sensor
Measurement Data IR Sensor [15:0]
Two’s Complement
Hex
Decimal
Output Current of IR Sensor Unit
0111 1111 1111 1111
7FFF
32767
14286.4
⁞
⁞
⁞
⁞
0101 1001 1001 1000
5998
22936
10000.1
⁞
⁞
⁞
⁞
0100 0000 1000 0010
4082
16514
7000.1
⁞
⁞
⁞
⁞
0000 1000 1111 0110
08F6
2294
1000.2
⁞
⁞
⁞
⁞
0000 0000 0010 0000
0020
32
14.0
⁞
⁞
⁞
⁞
0000 0000 0000 0000
0000
0
0
pA
⁞
⁞
⁞
⁞
1111 1111 1110 0000
FFE0
-31
13.5
⁞
⁞
⁞
⁞
1111 0111 0000 1001
F709
-2294
-1000.2
⁞
⁞
⁞
⁞
1011 1111 0111 1101
BF7D
-16514
-7200.1
⁞
⁞
⁞
⁞
1010 0110 0110 0111
9667
-22936
-10000.1
⁞
⁞
⁞
⁞
1000 0000 0000 0000
8000
-32768
-14286.8
Note:
* 14. When the digital filter cutoff frequency is set to Fc= 1.1Hz, the output current under 15.8pA cannot
be measured by the noise.
015002896-E-01
- 34 -
2015/10