ASAHI KASEI
[AK4341]
FILTER CHARACTERISTICS
(Ta = 25°C; VDD = +3.0
∼
+3.6V, HVDD = +8.55
∼
+12.6V; fs = 44.1kHz; DEM = OFF, GAIN =0dB)
Parameter
Symbol
min
typ
max
Units
Digital filter
(DEM = OFF)
PB
0
20.0
kHz
Passband
±0.05dB
-
22.05
-
kHz
–6.0dB
Stopband (Note 9)
SB
24.1
kHz
Passband Ripple
PR
dB
±
0.02
Stopband Attenuation
SA
54
dB
Group Delay (Note 10)
GD
-
19.3
-
1/fs
De-emphasis Filter
(DEM = ON)
De-emphasis Error
fs = 32kHz
-
-
–1.5/0
dB
(Relative to 0Hz)
fs = 44.1kHz
-
-
–0.2/+0.2
dB
fs = 48kHz
-
-
0/+0.6
dB
Digital Filter + LPF
(DEM = OFF)
Frequency Response 20.0kHz fs=44.1kHz
FR
-
-
dB
±
0.05
40.0kHz fs=96kHz
FR
-
-
dB
±
0.05
80.0kHz fs=192kHz
FR
-
-
dB
±
0.05
Note 9. The passband and stopband frequencies scale with fs(system sampling rate).
For example, PB=0.4535×fs (@±0.05dB), SB=0.546×fs.
Note 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.
DC CHARACTERISTICS
(Ta = 25°C; VDD = +3.0
∼
+3.6V, HVDD = +8.55
∼
+12.6V)
Parameter
Symbol
min
High-Level Input Voltage (except for GAIN pin)
VIH
70%VDD
Low-Level Input Voltage (except for GAIN pin)
VIL
-
High-Level Input Voltage (for GAIN pin)
VIH
90%VDD
Low-Level Input Voltage (for GAIN pin)
VIL
-
Open (for GAIN pin. Note 11)
open
-
Input Leakage Current (Note 12)
Iin
-
Note 11. GAIN pin is biased to VDD and VSS via50kΩ (typ) resisters internally.
Note 12. Except for the GAIN pin
typ
-
-
-
-
VDD/2
-
max
-
30%VDD
-
10%VDD
-
±
10
Units
V
V
V
V
V
μA
MS0558-E-01
-6-
2007/03
AKM [ ASAHI KASEI MICROSYSTEMS ]
