ASAHI KASEI
[AK4309B]
FILTER CHARACTERISTICS
(Ta=25
°C
; AVDD,DVDD=4.5V
∼
5.5V; fs=44.1kHz)
Parameter
Digital Filter
Passband
-0.2dB (Note 9 )
-6.0dB
(Note 9 )
PB
SB
PR
SA
GD
0
-
24.3
41
-
-
22.05
20.0
-
±0.05
14.5
±0.5
-
-
kHz
kHz
kHz
dB
dB
1/fs
dB
Symbol
min
typ
max
Units
Stopband
Passband Ripple
Stopband Attenuation
Group Delay
(Note 10 )
Digital Filter + SCF + CTF
Frequency Response 0
∼
20.0kHz
Note: 9 . The passband and stopband frequencies scale with fs.
For example, PB=0.4535*fs(@-0.2dB), SB=0.55*fs.
10 . The calculating delay time which occurred by digital filtering. This time is from setting the 16bit
data of both channels to input register to the output of analog signal.
DIGITAL CHARACTERISTICS
(Ta=25
°C
; AVDD,DVDD=4.5
∼
5.5V)
Parameter
High-Level Input Voltage
Low-Level Input Voltage
High-Level Output Voltage (Iout=-100A)
Low-Level Output Voltage (Iout=100A)
Input Leakage Current
Symbol
VIH
VIL
VOH
VOL
Iin
min
2.2
-
DVDD-0.5
-
-
typ
-
-
-
-
max
-
0.8
-
0.5
±10
Units
V
V
V
V
uA
0177-E-00
-6-
1997/6
AKM [ ASAHI KASEI MICROSYSTEMS ]
