[AK4629]
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
24
Bits
S/(N+D)
(-0.5dBFS)
fs=48kHz
84
96
dB
fs=96kHz
-
92
dB
DR
(-60dBFS)
fs=48kHz, A-weighted
94
102
dB
fs=96kHz
88
99
dB
fs=96kHz, A-weighted
93
105
dB
S/N
fs=48kHz, A-weighted
94
102
dB
fs=96kHz
88
99
dB
fs=96kHz, A-weighted
93
105
dB
Interchannel Isolation
90
110
dB
DC Accuracy (Single-ended Inputs)
Interchannel Gain Mismatch
0.2
0.3
dB
Gain Drift
20
-
ppm/°C
Input Voltage
AIN=0.68xVREFH
3.2
3.4
3.6
Vpp
fs=48kHz
10
14
kΩ
Input Resistance
fs=96kHz
11
kΩ
Power Supply Rejection
9)
50
dB
ADC Analog Input Characteristics (Differential inputs)
S/(N+D)
(-0.5dBFS)
fs=48kHz
84
96
dB
fs=96kHz
-
94
dB
DR
(-60dBFS)
fs=48kHz, A-weighted
95
103
dB
fs=96kHz
89
100
dB
fs=96kHz, A-weighted
94
106
dB
S/N
fs=48kHz, A-weighted
95
103
dB
fs=96kHz
89
100
dB
fs=96kHz, A-weighted
94
106
dB
Interchannel Isolation
90
110
dB
DC Accuracy (Differential inputs)
Interchannel Gain Mismatch
0.2
0.3
dB
Gain Drift
20
-
ppm/°C
Input Voltage
AIN=0.68xVREFH (Note
8)
±3.2
±3.4
±3.6
Vpp
fs=48kHz
22
32
kΩ
Input Resistance
fs=96kHz
19
kΩ
Power Supply Rejection
9)
50
-
dB
Common Mode Rejection Ratio (CMRR)
60
dB
MS1277-E-02
-7-
2012/03
AKM [ ASAHI KASEI MICROSYSTEMS ]
