
ASAHI KASEI
[AK4620A]
MS0368-E-00
2004/12
- 7 -
ANALOG CHARACTERISTICS (ADC: Single-ended Input)
(Ta=25
°
C; VA=5V, VD=3.3V, VT=5V; AGND=DGND=0V; VREF=VA; fs=44.1kHz; Signal Frequency =1kHz; 24bit
Data; Measurement frequency=20Hz
~
20kHz at fs=44.1kHz, 40Hz
~
40kHz at fs=96kHz, 40Hz
~
40kHz at fs=192kHz;
unless otherwise specified)
Parameter
Input PGA Characteristics:
Input Voltage (Note 6)
Input Resistance (Note 7)
Step Size
Gain Control Range
ADC Analog Input Characteristics: IPGA=0dB
Resolution
fs=44.1kHz
BW=20kHz
-60dBFS
fs=96kHz
BW=40kHz
-60dBFS
fs=192kHz
BW=40kHz
-60dBFS
Dynamic Range (-60dBFS with A-weighted)
S/N (A-weighted)
Interchannel Isolation
Interchannel Gain Mismatch
Gain Drift
Power Supply Rejection (Note 8)
ANALOG CHARACTERISTICS (ADC: Differential Input)
(Ta=25
°
C; VA=5V, VD=3.3V, VT=5V; AGND=DGND=0V; VREF=VA; fs=44.1kHz; Signal Frequency =1kHz; 24bit
Data; Measurement frequency=20Hz
~
20kHz at fs=44.1kHz, 40Hz
~
40kHz at fs=96kHz, 40Hz
~
40kHz at fs=192kHz;
unless otherwise specified)
Parameter
ADC Analog Input Characteristics:
Resolution
Input Voltage (
Note 9
)
Input Resistance
fs=44.1kHz
fs=48kHz
fs=96kHz
fs=192kHz
fs=44.1kHz
BW=20kHz
-60dBFS
fs=96kHz
BW=40kHz
-60dBFS
fs=192kHz
BW=40kHz
-60dBFS
Dynamic Range (-60dBFS with A-weighted)
S/N (A-weighted)
Interchannel Isolation
Interchannel Gain Mismatch
Gain Drift
Power Supply Rejection (Note 8)
min
typ
max
Units
2.77
0.7
0.2
0
3.07
5.1
0.5
3.37
-
0.8
18
Vpp
k
dB
dB
24
Bits
dB
dB
dB
dB
dB
dB
dB
dB
dB
ppm/
°
C
dB
-1dBFS
82
-
-
-
-
-
-
101
90
-
92
47
92
44
92
44
110
110
105
0.2
150
50
-1dBFS
S/(N+D)
-1dBFS
0.5
-
min
typ
max
Units
24
Bits
Vpp
k
k
k
k
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
ppm/
°
C
dB
±
2.62
8
-
-
-
90
-
-
-
-
-
-
103
90
±
2.82
14
13
13
13
100
50
100
46
100
46
113
113
120
0.1
20
50
±
3.02
-
-
-
-
0.5
-
-1dBFS
-1dBFS
S/(N+D)
-1dBFS
-