AK8996 Datasheet, PDF (24/74 Pages) Asahi Kasei Microsystems – Pressure Sensor Interface IC

[AK8996/W]
3. Description of Operation Timing Status
3.1 Normal Operation Timing
No. State
CLK
Operations
00 Start Up
Analog circuit settling time for stable operation.
Analog reference circuits as VREF & IREF start up and
configured output reference voltage is provided at VOUT pin.
10 ST0
Clock count start
Analog circuit startup
20 PJ0
CLK=5
Pressure judge circuit not in operation
30 STV0
CLK=8
STV initial operation
3 MSR
CLK=18
Output pressure (VP-VN) to VOUT
13 ST3
CLK=51
Idling
With fs=10.24kHz setup, no idling and in continuous
operation.
Idling period
100Hz 5,070 CLK
1kHz
482 CLK
2kHz
206 CLK
10.24kHz 0 CLK
11 ST1
CLK1=51 or 256 Pressure detection operation and analog circuit startup
or 512 or 5120
21 PJ1
CLK=5+CLK1 Pressure judge circuit operation
(Positive/negative pressure determination)
31 STV1
CLK=8+CLK1 STV normal operation
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MS1055-E-02
24
2011/12