AK8999AW Datasheet, PDF (26/68 Pages) Asahi Kasei Microsystems – Pressure Sensor Control IC

CONFIDENTIAL
[AK8999A/AW/AD]
Power ON
EEPROM Write
Enable set
(Add 1Eh D[0] set)
EEPROM initialize
(Add 1Fh D[7:0] set)
Control Register
Access set
(Add 1Dh D[0] set)
Measurement
mode routine
ex. Ta:25C
ex. Pressure:0kPa
VREF adjustment
(CAdd 00h D[3:0] set
Add 0Fh D[2:0] set)
IREF adjustment
(CAdd 00h D[3:0] set
Add 0Fh D[7:4] set)
OSC adjustment
(CAdd 00h D[3:0] set
Add 10h D[3:0] set)
14. Adjustment Sequence
note)
EEPROM Address is indicated by “Add”, Control Register Address is
indicated by “CAdd”.
Please refer the digital part flow chart for EEPROM / Control Register
writing and reading.
VTMP adjustment
(CAdd 00h D[3:0] set
Add 10h D[6:4] &
11h D[5:0] set)
Level shift adjustment
(CAdd 00h D[3:0] set
Add 03h D[4] &
08h D[7:0] set)
Gain(G1/G2) set
(Add 0Ch D[4:0] set)
ex. Pressure:0kPa
Offset adjustment
(Add 00h D[3:0] &
01h D[7:0] set)
Level shift set
(Add 03h D[4] &
08h D[7:0] set)
ex. Pressure:100kPa
Span adjustment
(Add 02h D[7:0] set)
ex. Ta:105C
ex. Pressure:0kPa
Offset temperature
adjustment
(Add 03h D[0] &
04h D[7:0] set)
ex. Pressure:100kPa
Span temperature
adjustment
(Add 03h D[2] &
06h D[7:0] set)
ex. Ta:-40C
ex. Pressure:0kPa
Offset temperature
adjustment
(Add 03h D[1] &
05h D[7:0] set)
ex. Pressure:100kPa
Span temperature
adjustment
(Add 03h D[3] &
07h D[7:0] set)
ex. Ta:25C
ex. Pressure:0kPa
Offset
fine adjustment
(Add 01h D[7:0] set)
ex. Pressure:100kPa
Span
fine adjustment
(Add 02h D[7:0] set)
ex. Pressure:0kPa
Pressure Detector 1
setting routine
Pressure Detector 2
setting routine
Control Register
Access set
(Add 1Dh D[7] set)
EEPROM Write
Enable set
(Add 1Fh D[0] set)
Power OFF
MS1600-E-00
- 26 -
2014/05