AK4385_06 Datasheet, PDF (4/23 Pages) Asahi Kasei Microsystems – 108dB 192kHz 24-Bit 2ch ΔΣ DAC

ASAHI KASEI
[AK4385]
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 ≥4kΩ; unless otherwise specified)
Parameter
min
typ
max
Resolution
24
Dynamic Characteristics
(Note 3)
THD+N
fs=44.1kHz
BW=20kHz
0dBFS
-60dBFS
-94
-84
-44
-
fs=96kHz
BW=40kHz
0dBFS
-60dBFS
-92
-
-41
-
fs=192kHz
BW=40kHz
0dBFS
-60dBFS
-92
-
-41
-
Dynamic Range (-60dBFS with A-weighted) (Note 4)
100
108
S/N
(A-weighted)
(Note 5)
100
108
Interchannel Isolation (1kHz)
90
110
Interchannel Gain Mismatch
0.2
0.5
DC Accuracy
Gain Drift
100
-
Output Voltage
(Note 6)
±2.55
±2.75
±2.95
Load Resistance
(Note 7)
4
Power Supplies
Power Supply Current (VDD)
Normal Operation (PDN = “H”, fs≤96kHz)
Normal Operation (PDN = “H”, fs=192kHz)
Power-Down Mode (PDN = “L”)
(Note 8)
17
27
20
32
10
100
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 VREF,
AOUT (typ.@0dB)=(AOUT+)-(AOUT-)=±2.75Vpp × VREF/5.
7. For AC-load. 4kΩ for DC-load.
8. All digital inputs including clock pins (MCLK, BICK and LRCK) are held VDD or VSS.
Units
Bits
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
ppm/°C
Vpp
kΩ
mA
mA
µA
MS0246-E-01
-4-
2006/01