AK9750 Datasheet, PDF (37/49 Pages) Asahi Kasei Microsystems – IR Sensor IC with I2C I/F

[AK9750]
11). EHYS13, EHYS24: Hysteresis setting of Threshold Level / Polarity setting of INT output.
(Read / Write Registers)
Address Name D7 D6 D5
D4
D3
D2
D1
D0
19H EHYS13
EHYS13_4 EHYS13_3 EHYS13_2 EHYS13_1 EHYS13_0
1AH EHYS24
EHYS24_4 EHYS24_3 EHYS24_2 EHYS24_1 EHYS24_0
Reset
111
0
0
0
0
0
Hysteresis setting for Threshold levels
ETHYS13, EHYS24: Hysteresis setting for threshold levels 5-bit
This register is used only in Switch Mode (ECOPY).
Binary
11111
11110
⁞
00001
00000
Table 14.6. Hysteresis setting of Threshold Level
Hysteresis [4:0]
Hex
Decimal
Differential Current Output Unit
1F
31
108.12
1E
30
104.63
⁞
⁞
⁞
pA
01
1
3.4877
00
0
0
The relationship between the hysteresis and the threshold level is shown in Figure 14.1.
INT Output
“H” Level
“L” Level
EHYS13
or
EHYS24
EHYS13
or
EHYS24
The Differential Output
(IR1 - IR3 / IR2 - IR4)
Figure 14.1. Hysteresis setting for threshold levels.
Detection is defined as the situation in which the differential output (IR1 - IR3 / IR2 - IR4) exceeds the
threshold level.
015002896-E-01
- 37 -
2015/10