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AK7735EQ Datasheet, PDF (14/142 Pages) Asahi Kasei Microsystems – Dual DSP with 4chADC + 4chDAC + 4chSRC
[AK7735]
8. Electrical Characteristics
■ Analog Characteristics
1. MIC AMP
(Ta=25C; AVDD=LVDD=TVDD=VDD33=3.3V; AVSS=DVSS1=DVSS2=DVSS3=0V;
ADC1VL/R bits=“0”)
Parameter
Min.
Typ.
Max.
Unit
Input Impedance
14
20
26
kΩ
MGNL[3:0]bits=0h, MGNR[3:0]bits=0h
-1
0
1
MGNL[3:0]bits=1h, MGNR[3:0]bits=1h
1
2
3
MGNL[3:0]bits=2h, MGNR[3:0]bits=2h
3
4
5
MGNL[3:0]bits=3h, MGNR[3:0]bits=3h
5
6
7
MGNL[3:0]bits=4h, MGNR[3:0]bits=4h
7
8
9
MGNL[3:0]bits=5h, MGNR[3:0]bits=5h
9
10
11
MIC
MGNL[3:0]bits=6h, MGNR[3:0]bits=6h
11
12
13
AMP
Gain
MGNL[3:0]bits=7h, MGNR[3:0]bits=7h
MGNL[3:0]bits=8h, MGNR[3:0]bits=8h
13
15
14
16
15
17
dB
MGNL[3:0]bits=9h, MGNR[3:0]bits=9h
17
18
19
MGNL[3:0]bits=Ah, MGNR[3:0]bits=Ah
20
21
22
MGNL[3:0]bits=Bh, MGNR[3:0]bits=Bh
23
24
25
MGNL[3:0]bits=Ch, MGNR[3:0]bits=Ch
26
27
28
MGNL[3:0]bits=Dh, MGNR[3:0]bits=Dh
29
30
31
MGNL[3:0]bits=Eh, MGNR[3:0]bits=Eh
32
33
34
MGNL[3:0]bits=Fh, MGNR[3:0]bits=Fh
35
36
37
2. MIC Bias Output
(Ta=25C; AVDD=LVDD=TVDD=VDD33=3.3V; AVSS=DVSS1=DVSS2=DVSS3=0V;
Measurement Frequency =20Hz~20kHz)
Parameter
Min.
Typ.
Max.
Unit
MIC Bias
Output Voltage * 9
Load Resistance
2.3
2.5
2.7
V
2
kΩ
Load Capaitance
30
pF
Output Noise (A-weighted)
-114
-108
dBV
Note
* 9. Output voltage is proportional to AVDD (0.76 x AVDD).
016014707-E-00
- 14 -
2016/12