AK4358_06 Datasheet, PDF (7/36 Pages) Asahi Kasei Microsystems – 192kHz 24-Bit 8ch DAC with DSD Input

ASAHI KASEI
[AK4358]
SHARP ROLL-OFF FILTER CHARACTERISTICS
(Ta = 25°C; AVDD, DVDD = 4.75 ∼ 5.25V; fs = 44.1kHz; DEM = OFF; SLOW = “0”; PCM Mode)
Parameter
Symbol
Min
Typ
Max
Digital filter
Passband
±0.05dB (Note 12)
-6.0dB
PB
0
20.0
-
22.05
-
Stopband
(Note 12)
SB
24.1
Passband Ripple
PR
± 0.02
Stopband Attenuation
SA
54
Group Delay
(Note 13)
GD
-
19.1
-
Digital Filter + SCF
Frequency Response 20.0kHz Fs=44.1kHz
FR
40.0kHz Fs=96kHz
FR
80.0kHz Fs=192kHz
FR
-
± 0.2
-
-
± 0.3
-
-
+0/-0.6
-
Units
kHz
kHz
kHz
dB
dB
1/fs
dB
dB
dB
Note 12. The passband and stopband frequencies scale with fs(system sampling rate). For example, PB=0.4535×fs
(@±0.05dB), SB=0.546×fs.
Note 13. 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”; PCM Mode)
Parameter
Symbol
Min
Typ
Max
Digital Filter
Passband
±0.04dB (Note 14)
-3.0dB
PB
0
8.1
-
18.2
-
Stopband
Passband Ripple
Stopband Attenuation
Group Delay
(Note 14)
(Note 13)
SB
39.2
PR
SA
72
GD
-
± 0.005
19.1
-
Digital Filter + SCF
Frequency Response _20.0kHz fs=44.kHz
FR
-
+0/-5
-
40.0kHz ^fs=96kHz
FR
-
+0/-4
-
80.0kHz ^fs=192kHz
FR
-
+0/-5
-
Units
kHz
kHz
kHz
dB
dB
1/fs
dB
dB
dB
Note 14. The passband and stopband frequencies scale with fs. For example, PB = 0.185×fs (@±0.04dB), SB = 0.888×fs.
DC CHARACTERISTICS
(Ta = 25°C; AVDD, DVDD = 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 DVDD-0.4
-
Low-Level Output Voltage (Iout = 80µA)
VOL
-
Input Leakage Current
(Note 15)
Iin
-
-
Note 15. ACKSN pin has internal pull-down devices, nominally 100kΩ.
Max
Units
-
V
0.8
V
-
V
0.4
V
± 10
µA
MS0203-E-01
-7-
2006/02