[AK4425A]
ANALOG CHARACTERISTICS
(Ta = 25°C; VDD=AVDD = +5.0V; fs = 44.1 kHz; BICK = 64fs; Signal Frequency = 1 kHz;
24bit Input Data; Measurement frequency = 20Hz ∼ 20kHz; RL ≥5kΩ)
Parameter
min
typ
max
Units
Resolution
24
Bits
Dynamic Characteristics (Note 4)
THD+N
fs=44.1kHz, BW=20kHz
fs=96kHz, BW=40kHz
fs=192kHz, BW=40kHz
-91
-91
-91
106
106
100
0
-84
-
-
dB
dB
dB
dB
dB
dB
dB
Dynamic Range (-60dBFS with A-weighted. (Note 5)
S/N (A-weighted. (Note 6)
Interchannel Isolation (1kHz)
Interchannel Gain Mismatch
DC Accuracy
100
100
90
0.5
DC Offset
Gain Drift
Output Voltage (Note 7)
Load Capacitance (Note 8)
Load Resistance
(at output pin)
-5
2.05
5
0
100
2.2
+5
-
2.35
25
mV
ppm/°C
Vrms
pF
kΩ
Power Supplies
Power Supply Current: (Note 9)
24
27
10
36
40
100
mA
mA
μA
Normal Operation (fs≤96kHz)
Normal Operation (fs=192kHz)
Power-Down Mode (Note 10)
Note 4. Measured by Audio Precision (System Two). Refer to the evaluation board manual.
Note 5. 98dB for 16bit input data
Note 6. S/N does not depend on input data size.
Note 7. Full-scale voltage (0dB). Output voltage is proportional to the voltage of VDD,
AOUT (typ.@0dB) = 2.2Vrms × VDD/5.
Note 8. In case of driving capacitive load, inset a resistor between the output pin and the capacitive load.
Note 9. The current into VDD and AVDD.
Note 10. All digital inputs including clock pins (MCLK, BICK and LRCK) are fixed to VSS1(VSS2) or VDD(AVDD).
MS1127-E-01
2011/03
- 6 -
AKM [ ASAHI KASEI MICROSYSTEMS ]
