[AK4601]
8. Electrical Characteristics
■ Analog Characteristics
1. MIC AMP Gain
(Ta=25C; AVDD=VREFH=LVDD=TVDD=3.3V; AVSS=VREFL=DVSS1=DVSS2=0V, ADC1VL/R bit =
“0”)
Parameter
Input Impedance
Min.
14
-1
Typ.
20
0
Max.
26
1
Unit
kΩ
MGNL[3:0]bits=0h, MGNR[3:0]bits=0h
MGNL[3:0]bits=1h, MGNR[3:0]bits=1h
MGNL[3:0]bits=2h, MGNR[3:0]bits=2h
MGNL[3:0]bits=3h, MGNR[3:0]bits=3h
MGNL[3:0]bits=4h, MGNR[3:0]bits=4h
MGNL[3:0]bits=5h, MGNR[3:0]bits=5h
MGNL[3:0]bits=6h, MGNR[3:0]bits=6h
MGNL[3:0]bits=7h, MGNR[3:0]bits=7h
MGNL[3:0]bits=8h, MGNR[3:0]bits=8h
MGNL[3:0]bits=9h, MGNR[3:0]bits=9h
MGNL[3:0]bits=Ah, MGNR[3:0]bits=Ah
MGNL[3:0]bits=Bh, MGNR[3:0]bits=Bh
MGNL[3:0]bits=Ch, MGNR[3:0]bits=Ch
MGNL[3:0]bits=Dh, MGNR[3:0]bits=Dh
MGNL[3:0]bits=Eh, MGNR[3:0]bits=Eh
MGNL[3:0]bits=Fh, MGNR[3:0]bits=Fh
1
3
5
7
2
4
6
8
3
5
7
9
9
10
12
14
16
18
21
24
27
30
33
36
11
13
15
17
19
22
25
28
31
34
37
MIC
AMP
11
13
15
17
20
23
26
29
32
35
Gain
dB
2. MIC Bias Output
(Ta=25C; AVDD=VREFH=LVDD=TVDD =3.3V; AVSS=VREFL=DVSS1=DVSS2=0V; Measurement
Frequency = 20Hz~20kHz)
Parameter
Output Voltage
Load Resistance
Load Capaitance
Output Noise (A-weighted)
Min.
2.3
2
Typ.
2.5
Max.
2.7
Unit
V
kΩ
pF
dBV
MIC Bias
30
-108
-114
016000391-E-01
- 12 -
2016/12
AKM [ ASAHI KASEI MICROSYSTEMS ]
