AKD4371 데이터 시트보기 (PDF) - Asahi Kasei Microdevices
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AKD4371 Datasheet PDF : 62 Pages
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[AK4371]
FILTER CHARACTERISTICS
(Ta=25°C; AVDD, DVDD, PVDD, HVDD=1.6 ∼ 3.6V; fs=44.1kHz; De-emphasis = “OFF”)
Parameter
Symbol
min
typ
DAC Digital Filter: (Note 17)
Passband (Note 18)
−0.05dB
PB
0
-
−6.0dB
-
22.05
Stopband (Note 18)
SB
24.1
-
Passband Ripple
PR
-
-
Stopband Attenuation
SA
54
-
Group Delay (Note 19)
GD
-
22
Group Delay Distortion
ΔGD
-
0
DAC Digital Filter + Analog Filter: (Note 17, Note 20)
Frequency Response 0 ∼ 20.0kHz
FR
-
±0.5
Analog Filter: (Note 21)
Frequency Response 0 ∼ 20.0kHz
FR
-
±1.0
BOOST Filter: (Note 20, Note 22)
Frequency Response
20Hz
FR
-
5.76
MIN 100Hz
-
2.92
1kHz
-
0.02
20Hz
FR
-
10.80
MID 100Hz
-
6.84
1kHz
-
0.13
20Hz
FR
-
16.06
MAX 100Hz
-
10.54
1kHz
-
0.37
max
20.0
-
-
±0.02
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Units
kHz
kHz
kHz
dB
dB
1/fs
µs
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
Note 17. BOOST OFF (BST1-0 bit = “00”)
Note 18. The passband and stopband frequencies scale with fs (system sampling rate).
For example, PB=0.4535fs(@−0.05dB). SB=0.546fs(@−54dB).
Note 19. This time is from setting the 24-bit data of both channels from the input register to the output of analog signal.
Note 20. DAC Æ HPL, HPR, LOUT, ROUT, MOUT
Note 21. LIN1/LIN2/LIN3/RIN1/RIN2/RIN3 Æ HPL/HPR/LOUT/ROUT/MOUT
Note 22. These frequency responses scale with fs. If high-level signal is input, the output clips at low frequency.
20
MAX
15
MID
10
MIN
5
0
-5
10
Boost Filter (fs=44.1kHz)
100
1000
Frequency [Hz]
Figure 2. Boost Frequency (fs=44.1kHz)
10000
MS0596-E-00
- 11 -
2007/04
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