ASAHI KASEI
[AK4365]
FILTER CHARACTERISTICS
(Ta=25°C; AVDD, DVDD, PLLVCC, HPVCC=2.7
∼
3.3V; fs=44.1kHz; De-emphasis = “OFF”)
Parameter
Symbol
min
typ
max
Units
DAC Digital Filter:
(Note 12)
Passband
-0.05dB (Note 13)
PB
0
20.0
kHz
-6.0dB
-
22.05
-
kHz
Stopband
(Note 13)
SB
24.1
kHz
Passband Ripple
PR
dB
±0.02
Stopband Attenuation
SA
57
dB
Group Delay
(Note 14)
GD
-
19.1
-
1/fs
Group Delay Distortion
0
∆GD
µs
DAC Digital Filter + Analog Filter:
(Note 12)(Note 15)
FR
-
-
dB
±0.5
Frequency Response
0
∼
20.0kHz
Analog Filter:
(Note 16)
FR
-
-
dB
±1.0
Frequency Response
0
∼
20.0kHz
BOOST Filter:
(Note 15) (Note 17)
Frequency Response
20Hz
FR
-
-4.21
-
dB
MIN
100Hz
-
-7.03
-
dB
1kHz
-
-10
-
dB
20Hz
FR
-
-4.05
-
dB
MID
100Hz
-
-6.04
-
dB
1kHz
-
-9.9
-
dB
20Hz
FR
-
-4.34
-
dB
MAX 100Hz
-
-5.35
-
dB
1kHz
-
-9.7
-
dB
Note 12. BOOST OFF (BST1-0 = “00”)
Note 13. The passband and stopband frequencies scale with fs.
For example, PB=0.4535*fs(@±0.05dB), SB=0.546*fs(@-57dB).
Note 14. This is the calculated delay time caused by digital filtering. This time is measured from the setting of the 20bit
data of both channels to the input registers to the output of the analog signal.
Note 15. DACL
à
HPL, DACR
à
HPR, DACM
à
MOUT
Note 16. MIN
à
HPL/HPR, LIN
à
HPL/MOUT, RIN
à
HPR/MOUT
Note 17. These frequency responses are characteristics with BOOST ON and -10dBFS digital data input.
MS0110-E-01
-7-
2003/10
AKM [ ASAHI KASEI MICROSYSTEMS ]
