AK4388 Datasheet, PDF (4/18 Pages) Asahi Kasei Microsystems – 192kHz 24-Bit 2ch ΔΣ DAC

ASAHI KASEI
[AK4388]
ANALOG CHARACTERISTICS
(Ta=25°C; VDD=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 3)
THD+N
fs=44.1kHz
0dBFS
–90
–80
dB
BW=20kHz
–60dBFS
–42
-
dB
fs=96kHz
0dBFS
–90
-
dB
BW=40kHz
–60dBFS
–39
-
dB
fs=192kHz
0dBFS
–85
-
dB
BW=40kHz
–60dBFS
–39
-
dB
Dynamic Range (-60dBFS with A-weighted)
(Note 4)
98
106
dB
S/N
(A-weighted)
(Note 5)
98
106
dB
Interchannel Isolation (1kHz)
90
100
dB
Interchannel Gain Mismatch
0.2
0.5
dB
DC Accuracy
Gain Drift
100
-
ppm/°C
Output Voltage
(Note 6)
2.95
3.20
3.45
Vpp
Load Resistance
(Note 7)
5
kΩ
Load Capacitance
25
pF
Power Supplies
Power Supply Current (VDD)
Normal Operation (RSTN pin = “H”, fs ≤ 96kHz)
Normal Operation (RSTN pin = “H”, fs = 192kHz)
Power-Down Mode (RSTN pin = “L”)
(Note 8)
16
-
mA
18
27
mA
60
160
µA
Notes: 3. Measured by Audio Precision (System Two). Refer to the evaluation board manual.
4. 100dB at 16bit data.
5. S/N does not depend on input bit length.
6. Full-scale voltage (0dB). Output voltage scales with the voltage of VDD,
AOUT (typ.@0dB) = 3.20Vpp × VDD/5.
7. For AC-load.
8. DIF1 pin is tied to VDD and the other all digital inputs including clock pins (MCLK, BICK and LRCK) are
tied to VSS.
MS0485-E-01
-4-
2006/07