AK4385_06 Datasheet, PDF (5/23 Pages) Asahi Kasei Microsystems – 108dB 192kHz 24-Bit 2ch ΔΣ DAC

ASAHI KASEI
[AK4385]
SHARP ROLL-OFF FILTER CHARACTERISTICS
(Ta = 25°C; VDD = 4.75 ∼ 5.25V; fs = 44.1kHz; DEM = OFF; SLOW = “0”)
Parameter
Symbol
min
typ
max
Units
Digital filter
Passband
±0.05dB (Note 9)
PB
0
20.0
kHz
-6.0dB
-
22.05
-
kHz
Stopband
(Note 9)
SB
24.1
kHz
Passband Ripple
PR
± 0.02
dB
Stopband Attenuation
SA
54
dB
Group Delay
(Note 10)
GD
-
19.3
-
1/fs
Digital Filter + SCF
Frequency Response 20.0kHz fs=44.1kHz
FR
40.0kHz fs=96kHz
FR
80.0kHz fs=192kHz
FR
-
± 0.2
-
dB
-
± 0.3
-
dB
-
+0.1/-0.6
-
dB
Notes: 9. The passband and stopband frequencies scale with fs(system sampling rate).
For example, PB=0.4535×fs (@±0.05dB), SB=0.546×fs.
10. The calculating delay time which occurred by digital filtering. This time is from setting the 16/24bit data
of both channels to input register to the output of analog signal.
SLOW ROLL-OFF FILTER CHARACTERISTICS
(Ta = 25°C; AVDD, DVDD = 4.75~5.25V; fs = 44.1kHz; DEM = OFF; SLOW = “1”)
Parameter
Symbol
min
typ
Digital Filter
Passband
±0.04dB (Note 11)
-3.0dB
PB
0
-
18.2
Stopband
(Note 11)
SB
39.2
Passband Ripple
PR
Stopband Attenuation
SA
72
Group Delay
(Note 10)
GD
-
19.3
Digital Filter + SCF
Frequency Response _20.0kHz fs=44.kHz
FR
-
40.0kHz ^fs=96kHz
FR
-
80.0kHz ^fs=192kHz
FR
-
Note: 11. The passband and stopband frequencies scale with fs.
For example, PB = 0.185×fs (@±0.04dB), SB = 0.888×fs.
+0/-5
+0/-4
+0.1/-5
max
8.1
-
± 0.005
-
-
-
-
Units
kHz
kHz
kHz
dB
dB
1/fs
dB
dB
dB
DC CHARACTERISTICS
(Ta=25°C; VDD=4.75 ∼ 5.25V)
Parameter
Symbol
min
typ
High-Level Input Voltage
VIH
2.2
-
Low-Level Input Voltage
VIL
-
-
High-Level Output Voltage (Iout=-80µA)
VOH
VDD-0.4
-
Low-Level Output Voltage (Iout=80µA)
VOL
-
Input Leakage Current
Iin
-
-
max
Units
-
V
0.8
V
-
V
0.4
V
± 10
µA
MS0246-E-01
-5-
2006/01