[AK4480]
ANALOG CHARACTERISTICS
(Ta=25°C; AVDD=VDDL/R=DVDD=5.0V; VSS1-4 =0V; VREFHL/R=AVDD, VREFLL/R= VSS;
Input data = 24bit; R
L
≥
1kΩ; BICK=64fs; Signal Frequency = 1kHz; Sampling Frequency = 44.1kHz;
Measurement bandwidth = 20Hz ~ 20kHz; External Circuit:
unless otherwise specified.)
Parameter
min
typ
max
Unit
Resolution
-
-
32
Bits
Dynamic Characteristics
5)
0dBFS
-
-100
-93
dB
fs=44.1kHz
THD+N
BW=20kHz
−60dBFS
-
-51
-
dB
0dBFS
-
97
-
dB
fs=96kHz
BW=40kHz
−60dBFS
-
-48
-
dB
0dBFS
97
-
dB
fs=192kHz
BW=40kHz
−60dBFS
-48
-
dB
BW=80kHz
-45
-
dB
−60dBFS
Dynamic Range (−60dBFS with A-weighted)
6)
108
114
dB
S/N (A-weighted)
7)
108
114
dB
Interchannel Isolation (1kHz)
100
110
dB
DC Accuracy
Interchannel Gain Mismatch
-
0
0.3
dB
Gain Drift
8)
-
20
-
ppm/°C
Output Voltage
9)
±2.25
±2.4
±2.55
Vpp
Load Capacitance
-
-
25
pF
Load Resistance
2
-
-
kΩ
Power Supplies
Power Supply Current
Normal operation (PDN pin = “H”)
AVDD + VDDL/R
-
30
45
mA
-
15
-
mA
DVDD (fs
≤
96kHz)
-
24
36
mA
DVDD (fs = 192kHz)
Power down (PDN pin = “L”)
AVDD+VDDL/R+DVDD
-
10
100
μA
Note 5. Measured by Audio Precision, System Two. Averaging mode. Refer to the evaluation board manual.
Note 6.
External LPF Circuit Example 2. 100dB for 16-bit data.
Note 7.
External LPF Circuit Example 2. S/N does not depend on input data size.
Note 8. The voltage on (VREFH
−
VREFL) is held +5V externally.
Note 9. Full-scale voltage(0dB). Output voltage scales with the voltage of (VREFHL/R
−
VREFLL/R).
AOUT (typ.@0dB) = (AOUT+)
−
(AOUT−) =
±2.4Vpp ×
(VREFHL/R
−
VREFLL/R)/5.
Note 10. Regarding Load Resistance, AC load is 2kΩ (min) with a DC cut capacitor. Please refer to
The load
resistance is 4k ohm (min) to ground when without a DC cut capacitor. Please refer to
Load Resistance
is with respect to ground. Analog characteristics are sensitive to capacitive load that is connected output pin.
Therefore the capacitive load must be minimized.
Note 11. In the power down mode. P/S pin = DVDD, and all other digital input pins including clock pins
(MCLK, BICK and LRCK) are held VSS4.
MS1146-E-03
-7-
2012/01
AKM [ ASAHI KASEI MICROSYSTEMS ]
