ASAHI KASEI
[AK4556]
ANALOG CHARACTERISTICS
(Ta=25°C; VA=VD=3.0V; VSS=0V; fs=48kHz, 96kHz, 192kHz; Signal Frequency=1kHz; BCLK=64fs; Data=24bit
Measurement frequency=20Hz
∼
20kHz at fs=48kHz, 40Hz
∼
40kHz at fs=96kHz, 40Hz
∼
40kHz at fs=192kHz; unless
otherwise specified)
Parameter
min
typ
max
Units
ADC Analog Input Characteristics:
Resolution
-
-
24
Bits
Input Voltage
(Note 4)
1.9
2.1
2.3
Vpp
S/(N+D)
fs=48kHz
−1dBFS
82
91
-
dB
BW=20kHz
−60dBFS
-
40
-
dB
fs=96kHz
−1dBFS
80
90
-
dB
BW=40kHz
−60dBFS
-
37
-
dB
fs=192kHz
−1dBFS
-
90
-
dB
BW=40kHz
−60dBFS
-
37
-
dB
DR
(−60dBFS with A-weighted)
95
103
-
dB
S/N
(A-weighted)
95
103
-
dB
Input Resistance
6
8
-
kΩ
Interchannel Isolation
90
110
-
dB
Interchannel Gain Mismatch
-
0.1
0.5
dB
Gain Drift
-
100
-
ppm/°C
Power Supply Rejection
(Note 8)
-
50
-
dB
DAC Analog Output Characteristics:
Resolution
-
-
24
Bits
Output Voltage
(Note 5)
1.9
2.1
2.3
Vpp
S/(N+D)
fs=48kHz
0dBFS
80
90
-
dB
BW=20kHz
−60dBFS
-
43
-
dB
fs=96kHz
0dBFS
78
88
-
dB
BW=40kHz
−60dBFS
-
40
-
dB
fs=192kHz
0dBFS
-
88
-
dB
BW=40kHz
−60dBFS
-
40
-
dB
DR
(−60dBFS with A-weighted)
98
106
-
dB
S/N
(A-weighted)
98
106
-
dB
Load Capacitance
(Note 6)
-
-
30
pF
Load Resistance
(Note 7)
5
-
-
kΩ
Interchannel Isolation
90
110
-
dB
Interchannel Gain Mismatch
-
0.1
0.5
dB
Gain Drift
-
100
-
ppm/°C
Power Supply Rejection
(Note 8)
-
50
-
dB
Note 4. This value is the full scale (0dB) of the input voltage. Input voltage is proportional to VA voltage.
Vin = 0.7 x VA (Vpp).
Note 5. This value is the full scale (0dB) of the output voltage. Output voltage is proportional to VA voltage.
Vout = 0.7 x VA (Vpp).
Note 6. When LOUT/ROUT drives some capacitive load, a 220Ω resistor should be added in series between
LOUT/ROUT and capacitive load. In this case, LOUT/ROUT pins can drive a capacitor of 400pF.
Note 7. For AC-load
Note 8. PSR is applied to VA and VD with 1kHz, 50mVpp. VCOM pin is connected to a 2.2µF electrolytic capacitor and
a 0.1µF ceramic capacitor.
MS0559-E-00
-7-
2006/11
AKM [ ASAHI KASEI MICROSYSTEMS ]
