AK8998 Datasheet, PDF (21/59 Pages) Asahi Kasei Microsystems – Preliminary

[AK8998/W/D]
9-2-8) Level shift
VDD=3, 3.3, 5V±5%, Ta=-20 to 85ºC, register default, unless otherwise noted
Item
Symbol
Conditions
Min.
Typ.
Max. units Comments
Measurement in test mode after offset voltage and span voltage adjustment
Output reference Vlv+ Max
1.00
V Note)
voltage
adj. width
(Level shift)
ELV[8]=1h
ELV[7:0]=FFh
Vlv- Min
ELV[8]=0h
ELV[7:0]=FFh
*VDD
0.00
*VDD
V Note)
Adj. step ^Vlstp
0.002
V
*VDD
Note）It is limited to 0.98*VDD from 0.02*VDD by the VOUT output range.
9-2-9) SCF & SMF
VDD=3, 3.3, 5V±5%, Ta=-20 to 85ºC, register default, unless otherwise noted
Item
Symbol
Conditions
Min. Typ. Max. units Comments
Measurement in test mode after offset voltage and span voltage adjustment
SCF&SMF
freq. response
Fc1 ESCF[1:0]=1h
10Hz referenced -3dB
0.8
1.0
1.2 kHz
Fc2 ESCF[1:0]=2h
10Hz referenced -3dB
400
500
600
Hz
Fc3 ESCF[1:0]=3h
10Hz referenced -3dB
200
250
300
Hz
SCF&SMF
gain
SCFG1 ESCF[1:0]=1h
1.000 1.111 1.222 times
9-2-10) External temperature sensor drive circuit
VDD=3, 3.3, 5V±5%, Ta=-20 to 85ºC, register default, unless otherwise noted
Item
Symbol
Conditions
Min.
Typ.
Max. units Comments
Temperature
sensor driving
current
Input voltage
range
Iconst After IREF adj.
Extpv4
Extpv2
VS=4V
After VREF adj.
VS=2.2V
After VREF adj.
40
50
60 µA
3220 3400 3580 mV
1474 1600 1726 mV
MSxxxxx-E-00
- 21 -
2012/11