AK4348 Datasheet, PDF (6/31 Pages) Asahi Kasei Microsystems – 3.3V 192kHz 24-Bit 8-Channel DAC

ASAHI KASEI
[AK4348]
SHARP ROLL-OFF FILTER CHARACTERISTICS
(Ta = 25°C; AVDD, DVDD = 2.7 ∼ 3.6V; fs = 44.1kHz; DEM = OFF; SLOW = “0”)
Parameter
Symbol
Min
Typ
Digital filter
Passband
±0.05dB (Note 10)
-6.0dB
PB
0
-
22.05
Stopband
(Note 10)
SB
24.1
Passband Ripple
PR
Stopband Attenuation
SA
54
Group Delay
(Note 11)
GD
-
19.3
Digital Filter + SCF
Frequency Response 20.0kHz Fs=44.1kHz FR
-
+ 0.06/-0.10
40.0kHz Fs=96kHz
FR
-
+ 0.06/-0.13
80.0kHz Fs=192kHz
FR
-
+ 0.06/-0.51
Max
20.0
-
± 0.02
-
-
-
-
Units
kHz
kHz
kHz
dB
dB
1/fs
dB
dB
dB
Note 10. The passband and stopband frequencies scale with fs(system sampling rate). For example, PB=0.4535×fs
(@±0.05dB), SB=0.546×fs.
Note 11. Calculated delay time caused by the digital filter. This time is measured from when the serial data of both
channels is in the input register to the output of the analog signal.
SLOW ROLL-OFF FILTER CHARACTERISTICS
(Ta = 25°C; AVDD, DVDD = 2.7~3.6V; fs = 44.1kHz; DEM = OFF; SLOW = “1”)
Parameter
Symbol
Min
Typ
Digital Filter
Passband
±0.04dB (Note 12)
PB
0
-3.0dB
-
18.2
Stopband
(Note 12)
SB
39.2
Passband Ripple
PR
Stopband Attenuation
SA
72
Group Delay
(Note 11)
GD
-
19.3
Digital Filter + SCF
Frequency Response 20.0kHz fs=44.kHz
FR
40.0kHz fs=96kHz
FR
80.0kHz fs=192kHz
FR
-
+0.1/-4.3
-
+0.1/-3.3
-
+0.1/-3.7
Max
8.1
-
± 0.005
-
-
-
-
Units
kHz
kHz
kHz
dB
dB
1/fs
dB
dB
dB
Note 12. 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 = 2.7 ∼ 3.6V)
Parameter
Symbol
Min
Typ
Max
Units
High-Level Input Voltage
VIH 70%DVDD
-
-
V
Low-Level Input Voltage
VIL
-
30%DVDD
V
High-Level Output Voltage (Iout = -80µA) VOH DVDD-0.4
-
-
V
Low-Level Output Voltage (Iout = 80µA)
VOL
-
0.4
V
Input Leakage Current
(Note 13)
Iin
-
-
± 10
µA
Note 13. P/S pin has an internal pull-up device and TDM0 pin has an internal pull-down device, nominally 100kΩ.
MS0532-E-00
-6-
2006/07