AK4368EG Просмотр технического описания (PDF) - Asahi Kasei Microdevices
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AK4368EG Datasheet PDF : 60 Pages
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ASAHI KASEI
[AK4368EG]
FILTER CHARACTERISTICS
(Ta=25°C; AVDD, DVDD, PVDD, HVDD=1.6 ∼ 3.6V; fs=44.1kHz; De-emphasis = “OFF”)
Parameter
Symbol
min
typ
max
Units
DAC Digital Filter: (Note 12)
Passband (Note 13)
−0.05dB
PB
0
-
20.0
kHz
−6.0dB
-
22.05
-
kHz
Stopband (Note 13)
SB
24.1
-
-
kHz
Passband Ripple
PR
-
-
±0.02
dB
Stopband Attenuation
SA
54
-
-
dB
Group Delay (Note 14)
GD
-
22
-
1/fs
Group Delay Distortion
∆GD
-
0
-
µs
DAC Digital Filter + Analog Filter: (Note 12) (Note 15)
Frequency Response 0 ∼ 20.0kHz
FR
-
±0.5
-
dB
Analog Filter: (Note 16)
Frequency Response 0 ∼ 20.0kHz
FR
-
±1.0
-
dB
BOOST Filter: (Note 15) (Note 17)
Frequency Response
20Hz
FR
-
5.76
-
dB
MIN 100Hz
-
2.92
-
dB
1kHz
-
0.02
-
dB
20Hz
FR
-
10.80
-
dB
MID 100Hz
-
6.84
-
dB
1kHz
-
0.13
-
dB
20Hz
FR
-
16.06
-
dB
MAX 100Hz
-
10.54
-
dB
1kHz
-
0.37
-
dB
Note 12. BOOST OFF (BST1-0 bit = “00”)
Note 13. The passband and stopband frequencies scale with fs.
For example, PB=0.4535*fs(@±0.05dB), SB=0.546*fs(@−54dB).
Note 14. This is the calculated delay time caused by digital filtering. This time is measured from the setting of the 24bit
data of both channels to the input registers to the output of the analog signal.
Note 15. DAC Æ HPL, HPR, LOUT, ROUT
Note 16. MIN Æ HPL/HPR/LOUT/ROUT, LIN Æ HPL/LOUT, RIN Æ HPR/ROUT
Note 17. These frequency responses scale with fs. If high-level signal is input, the output clips at low frequency.
Boost Filter (fs=44.1kHz)
20
MAX
15
MID
10
MIN
5
0
-5
10
100
1000
Frequency [Hz]
Figure 2. Boost Frequency (fs=44.1kHz)
10000
MS0529-E-00
- 10 -
2006/07
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