AK8998 Datasheet, PDF (23/59 Pages) Asahi Kasei Microsystems – Preliminary

[AK8998/W/D]
Description of Operation Timing Status (pressure detection circuit effective)
No. State
00 Start Up
CLK
10 ST0
30 STV0
4 MSR
13 ST3
CLK=8
CLK=18
CLK=51
11 ST1
21 ST2
31 STV1
CLK1=51
CLK=4+CLK1
CLK=8+CLK1
：：
：
Operations
It is the time until analog circuits operate stably.
Analog reference circuits as VREF, IREF, etc. start up
and adjusted output reference voltage is output from the
VOUT pin.
Clock count start
Analog circuits startup
STV initial operation
The result of pressure correction is output from VOUT
pin.
Idling
With fs=10kHz, no idling and in continuous operation.
Idling period
1kHz
450 CLK
10kHz 0 CLK
Pressure detection circuit 1 operation and analog circuit
startup
Pressure detection circuit 2 operation
STV normal operation
Pressure detection DET1/2 output (the (n-1)th pressure
determination)
：
MSxxxxx-E-00
- 22 -
2012/11