AK8998 Datasheet, PDF (22/59 Pages) Asahi Kasei Microsystems – Preliminary

Operation Sequence
Initial operation for STV (first time)
NO.
Approx.
500µsec
00
0
8
10
30
status
Start Up
ST0
STV0
VDD
STV
S/H1&2
VOUT
DET1/2
Detection ”H” set
Detection ”L” set
P. supply & sens.
variation adj.
1/2*VDD for output ref. voltage
18
4
(First) Initial
operation
Pressure measurement period
MSR
Normal operation for STV (2nd time & later)
Idling period
1kHz:450
10kHz: 0
CLK (1=500kHz)
0
4
8
NO.
13
11
21 31
status
ST3
ST1 ST2
STV1
VDD
STV
S/H1&2
P. supply & sens.
variation adj.
VOUT
VOUT・(n-1)
DET1/2
Detection ”H” set
Detection ”L” set
Pressure measurement period
18
4
MSR
(2nd time & after) Normal
operation
Detection: ”H” ((n-1)th judge)
Detection: ”Ｌ” ((n-1)th judge)
MSxxxxx-E-00
- 22 -
[AK8998/W/D]
Idling period
1kHz:450
10kHz: 0
50 51
13
ST3
VOUT・(1)
50 51
13
ST3
VOUT・(n)
2012/11