AK9752 Datasheet, PDF (28/36 Pages) Asahi Kasei Microsystems – Ultra-small IR sensor IC with IC

[AK9752]
13). CNTL1: Cut-off frequency (Fc) Setting (Read/Write Register)
Address Name D7 D6 D5
D4
D3
14H CNTL1 1
1
1 FCTMP[2] FCTMP[1]
Reset
1
1
1
0
0
Note:
Fc is defined as the frequency at which Gain is -3dB.
D2
FCTMP[0]
0
D1
FCIR[1]
0
D0
FCIR[0]
0
FCTMP[2:0]: Cut-off frequency (Fc) Setting for Integral Temperature Sensor output
“000”: No Filter
“001”: Fc= 2.5Hz
“010”: Fc= 0.9Hz
“011”: Fc= 0.45Hz
“100”: Fc= 0.22Hz
other: Prohibited
FCIR[1:0]: Cut-off frequency (Fc) Setting for IR Sensor output
“00”: No Filter
“01”: Fc= 2.5Hz
“10”: Fc= 0.9Hz
“11”: Fc= 0.45Hz
14). CNTL2: Operating Mode Setting (Read/Write Register)
Address Name D7
D6
D5
D4
D3
15H CNTL2
1
1
1
1
1
Reset
1
1
1
1
1
MODE[1:0]: Operating Mode Setting
“00”: Stand-by Mode
“01”: Continuous Mode
“10”: Single Shot Mode
“11”: Prohibited
D2
D1
D0
1 MODE[1] MODE[0]
1
0
0
15). CNTL3: Soft Reset (Read/Write Register)
Address Name D7
D6
D5
D4
D3
D2
D1
D0
16H CNTL3
1
1
1
1
1
1
1
SRST
Reset
1
1
1
1
1
1
1
0
SRST: Soft Reset
“0”: Normal State
“1”: Reset
Analog circuit, INTN output, SDA output and all registers are reset when setting “1” to SRST.
SRST automatically returns to “0” after reset.
016016473-E-00
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