AK8996 Datasheet, PDF (26/74 Pages) Asahi Kasei Microsystems – Pressure Sensor Interface IC

■ Main Routine
Power ON
( & STBYN : “H” )
EEPROM:ON
(CAdd 00h D[0] set)
note2)
EEPROM initialize
(Add 19h D[7:0] set)
Measurement
mode routine
ex. Ta:25°C
note2)
VREF adjustment
routine
IREF adjustment
routine
OSC adjustment
routine
VTMP adjustment
routine
DET pin normal
operation set
(CAdd 00h D[4:1] set)
Adjustment Sequence
Offset & Span
temperature
coefficient set
(Add 04h D[7:0]=7f
Add 05h D[2:0]=3
Add 06h D[7:0]=ff
Add 07h D[7:0]=7f
Add 08h D[7:0]=7f
Add 09h D[2:0]=3
Add 0Ah D[7:0]=ff
Add 0Bh D[2:0]=3
Add 0Ch D[7:0]=ff )
EEPROM:OFF
(CAdd 00h D[0] set)
Offset rough/fine
adjustment routine
ex. Pressure:100kPa
Span rough/fine
adjustment routine
EEPROM:ON
(CAdd 00h D[0] set)
Offset & Span
temperature
coefficient set
(Add 04h D[7:0]=0
Add 05h D[2:0]=0
Add 06h D[7:0]=0
Add 07h D[7:0]=0
Add 08h D[7:0]=0
Add 09h D[2:0]=0
Add 0Ah D[7:0]=0
Add 0Bh D[2:0]=0
Add 0Ch D[7:0]=0)
EEPROM:OFF
(CAdd 00h D[0] set)
Sensor & AK8996
temperature
characteristic
measurement
routine
ex. Ta:105°C
Sensor & AK8996
temperature
characteristic
measurement
routine
ex. Ta:-40°C
Sensor & AK8996
temperature
characteristic
measurement
routine
ex. Ta:25°C
EEPROM:ON
(CAdd 00h D[0] set)
Offset & Span
temperature
coefficient calculate
(Add 04h D[7:0]
Add 05h D[2:0]
Add 06h D[7:0]
Add 07h D[7:0]
Add 08h D[7:0]
Add 09h D[2:0]
Add 0Ah D[7:0]
Add 0Bh D[2:0]
Add 0Ch D[7:0] set)
EEPROM:OFF
(CAdd 00h D[0] set)
note) EEPROM Address is indicated by “Add”,
Control Register Address is indicated by “CAdd”.
note2) In case of Package, each items are unused.
MS1055-E-02
26
[AK8996/W]
Level shift &
Pressure judge set
routine
Offset rough/fine
adjustment routine
ex. Pressure:100kPa
Span rough/fine
adjustment routine
ex. Pressure:0kPa
Pressure & damage
check routine
Power OFF
2011/12