AK8998 Datasheet, PDF (16/59 Pages) Asahi Kasei Microsystems – Preliminary

[AK8998/W/D]
9) Analog Characteristics
9-1) Reference Section
9-1-1) Reference Section Characteristics
VDD=3, 3.3, 5V±5%, Ta=-20 to 85ºC, register default, unless otherwise noted
Item
Symbol
Conditions
VREF voltage Vr0 Unadjusted
AM[3:0]=1h VOUT out
Vr+ With respect to Vr0
VREF adj.
Max EVR[2:0]=3h
width
Vr- With respect to Vr0
Min EVR[2:0]=4h
VREF adj. step Vrstp
Min.
0.97
Typ.
1.0
+30
-40
10
Max.
1.04
units Comments
V @25 ºC
mV
mV
mV
VS voltage
VS4
VS2
IREF current
Ir0
Ir+
IREF adj. width _Ir-
IREF adj. step Irstp
After VREF adj.
VS pin out
Load resistance 1kΩ
After VREF adj.
VS pin out
Load resistance 0.82kΩ
Unadjusted
AM[3:0]=2h VOUT out
With respect to Ir0
Max EIR[3:0]=7h
With respect to Ir0
Min EIR[3:0]=8h
3.88 4.00 4.12
2.134 2.20 2.266
0.8 1.00 1.2
0.24
-0.17
0.028
V
V
µA @25 ºC
µA
µA
µA
OSC freq.
Fr0 Unadjusted
AM[3:0]=3h VOUT out
OSC adj. width Fr+ With respect to Fr0
Max EFR[3:0]=7h
0.750 1.000 1.250 MHz @25 ºC
384
kHz
OSC adj. step
Fr- With respect to Fr0
Min EFR[3:0]=Bh
Frstp
-251
kHz
50
kHz
VTMP voltage Vｔ0 Unadjusted
0.938
ETMP[0]=1h
AM[3:0]=4h VOUT out
Vtr+ With respect to Vt0
ETMP[0]=0h
VTMP adj.
Max ETM[8:6]=6h
width (Rough) Vtr- With respect to Vt0
ETMP[0]=0h
Min ETM[8:6]=2h
Rough adj. step Vtrstp ETMP[0]=0h
Vtf+ With respect to Vt0
ETMP[0]=1h
VTMP adj.
Max ETM[5:0]=20h
width (fine)
Vtf- With respect to Vt0
ETMP[0]=1h
Min ETM[5:0]=1Fh
Fine adj. step Vtfstp ETMP[0]=1h
VTMP temp
Vt ETMP[0]=1h
variation
Note) Design reference value; no production test performed.
1.0
+170
-170
85
+64
-62
2.0
4.6
1.064 V @25 ºC
mV
mV
mV
mV
mV
mV
mV/°C Note)
MSxxxxx-E-00
- 16 -
2012/11