AK4440 Datasheet, PDF (6/31 Pages) Asahi Kasei Microsystems – 192kHz 24-Bit 8ch DAC with 2Vrms Output

[AK4440]
ANALOG CHARACTERISTICS
(Ta=25°C; VDD=AVDD = +5.0V; fs=44.1kHz; BICK=64fs; Signal Frequency=1kHz; 24bit Input Data; Measurement
frequency=20Hz ∼ 20kHz; R_L ≥5kΩ; unless otherwise specified)
Parameter
min
typ
max
Units
Resolution
24
Bits
Dynamic Characteristics (Note 4)
THD+N (0dBFS)
fs=44.1kHz, BW=20kHz
-93
-84
dB
fs=96kHz, BW=40kHz
-92
-
dB
fs=192kHz, BW=40kHz
-92
-
dB
Dynamic Range (-60dBFS with A-weighted, Note 5)
98
105
dB
S/N (A-weighted, Note 6)
98
105
dB
Interchannel Isolation (1kHz)
90
100
dB
Interchannel Gain Mismatch
0.2
0.5
dB
DC Accuracy
DC Offset (at output pin)
-60
0
+60
mV
Gain Drift
100
ppm/°C
Output Voltage (Note 7)
1.97
2.12
2.27
Vrms
Load Capacitance (Note 8)
25
pF
Load Resistance
5
kΩ
Power Supplies
Power Supply Current: (Note 9)
Power Supply Current: (Note 9)
Normal Operation (fs≤96kHz)
Normal Operation (fs=192kHz)
Power-Down Mode (Note 10)
80
110
mA
85
120
mA
20
100
μA
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 AVDD,
AOUT (typ.@0dB) = 2.12Vrms × 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. The P/S pin is tied to VDD and the all other digital inputs including clock pins (MCLK, BICK and LRCK) are
tied to VSS2.
MS1088-E-01
-6-
2011/03