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AK9753 Datasheet, PDF (39/50 Pages) Asahi Kasei Microsystems – IR Sensor IC with I2C I/F | |||
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[AK9753]
13). ECNTL1: Mode setting/ Digital Filter Cutoff Frequency (Fc) setting (Read / Write registers)
Address Name D7
D6
D5
D4
D3
D2
D1
D0
1CH ECNTL1
EEPMODE EFC_2 EFC_1
EFC_0
EMODE_2 EMODE_1 EMODE_0
Reset
1
0
0
0
0
0
0
0
EMODE [2:0]: Mode setting
â000â: Stand-by Mode
â001â: EEPROM Access Mode (EEPMODE bit should be set to â1â simultaneously)
â010â: Shingle Shot Mode
â011â: Be prohibited
â100â: Continuous Mode 0 (Normal operation)
â101â: Continuous Mode 1 (Intermittent operation => Measurement time: Wait time = 1:1)
â110â: Continuous Mode 2 (Intermittent operation => Measurement time: Wait time = 1:3)
â111â: Continuous Mode 3 (Intermittent operation => Measurement time: Wait time = 1:7)
EFC [2:0]: Digital Filter Cutoff Frequency (Fc) setting
â000â: Fc = 0.3Hz
â001â: Fc = 0.6Hz
â010â: Fc = 1.1Hz
â011â: Fc = 2.2Hz
â100â: Fc = 4.4Hz
â101â: Fc = 8.8Hz
â11xâ: Be prohibited
The digital filter is âsinc functionâ type. The Fc is defined as the frequency at which Gain is -3dB.
EEPMODE Setting
â0â: Normal Mode
â1â: EEPROM Access Mode (EMODE [2:0] bits should be set to â001â simultaneously)
14). CNTL2: Soft Reset (Read / Write Registers)
Address Name D7
D6
D5
D4
D3
1DH CNTL2
Reset
1
1
1
1
1
D2
D1
D0
SRST
1
1
0
SRST: Soft Reset
â0â: Normal State
â1â: Reset
All registers are reset by setting SRST bit to â1â. SRST bit automatically returns to â0â after reset is
activated.
017005237-E-00
- 39 -
2017/04
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