[AK4627]
ANALOG CHARACTERISTICS
(Ta=25°C; AVDD=DVDD=TVDD=5V; VSS1=VSS2=0V; VREFH=AVDD; fs=48kHz; BICK=64fs;
Signal Frequency=1kHz; 24bit Data; Measurement Frequency=20Hz∼20kHz at 48kHz, 20Hz~40kHz at fs=96kHz,
20Hz~40kHz at fs=192kHz; unless otherwise specified)
Parameter
min
typ
max
Unit
ADC Analog Input Characteristics (Single-ended Inputs)
Resolution
S/(N+D)
24
Bits
dB
dB
dB
dB
dB
dB
dB
dB
dB
(-0.5dBFS)
(-60dBFS)
fs=48kHz
fs=96kHz
84
-
96
92
102
99
105
102
99
DR
fs=48kHz, A-weighted
fs=96kHz
fs=96kHz, A-weighted
fs=48kHz, A-weighted
fs=96kHz
94
88
93
94
88
93
90
S/N
(Note 11)
fs=96kHz, A-weighted
105
110
Interchannel Isolation
DC Accuracy (Single-ended Inputs)
Interchannel Gain Mismatch
Gain Drift
0.2
20
3.4
14
11
50
0.3
-
3.6
dB
ppm/°C
Vpp
kΩ
kΩ
dB
Input Voltage
AIN=0.68xVREFH
3.2
10
fs=48kHz
fs=96kHz
Input Resistance
Power Supply Rejection
(Note 9)
ADC Analog Input Characteristics (Differential inputs)
S/(N+D)
(-0.5dBFS)
fs=48kHz
fs=96kHz
fs=48kHz, A-weighted
fs=96kHz
84
-
96
94
dB
dB
dB
dB
dB
dB
dB
dB
dB
DR
(-60dBFS)
95
89
94
95
89
94
90
103
100
106
103
100
106
110
fs=96kHz, A-weighted
S/N
(Note 11)
fs=48kHz, A-weighted
fs=96kHz
fs=96kHz, A-weighted
Interchannel Isolation
DC Accuracy (Differential inputs)
Interchannel Gain Mismatch
Gain Drift
0.2
20
±3.4
32
0.3
-
±3.6
dB
ppm/°C
Vpp
kΩ
Input Voltage
AIN=0.68xVREFH (Note 8)
±3.2
22
fs=48kHz
fs=96kHz
Input Resistance
19
kΩ
Power Supply Rejection
(Note 9)
50
-
dB
Common Mode Rejection Ratio (CMRR)
(Note 10)
60
dB
MS1278-E-02
2012/03
- 7 -
AKM [ ASAHI KASEI MICROSYSTEMS ]
