參數(shù)資料
型號(hào): AK4620B
廠(chǎng)商: Asahi Kasei Microsystems Co.,Ltd
元件分類(lèi): Codec
英文描述: 24-Bit 192kHz Audio CODEC with IPGA
中文描述: 24位192kHz的音頻編解碼器與單親遺傳算法
文件頁(yè)數(shù): 11/42頁(yè)
文件大?。?/td> 410K
代理商: AK4620B
ASAHI KASEI
[AK4620B]
MS0401-E-00
2005/07
- 11 -
DAC SLOW ROLL-OFF FILTER CHARACTERISTICS (fs = 44.1kHz)
(Ta = 25
°
C; VA=4.75
5.25V; VD=3.0
3.6V, VT=3.0
5.25V; fs = 44.1kHz; Normal Speed Mode; DEM = OFF;
SLOW = “1”)
Parameter
Symbol
Digital Filter
Passband
±
0.04dB (Note 21)
-3.0dB
Stopband (Note 21)
SB
Passband Ripple
PR
Stopband Attenuation
SA
Group Delay (Note 20)
GD
Digital Filter + SCF
Frequency Response: 0
20.0kHz
DAC SLOW ROLL-OFF FILTER CHARACTERISTICS (fs = 96kHz)
(Ta = 25
°
C; VA=4.75
5.25V; VD=3.0
3.6V, VT=3.0
5.25V; fs = 96kHz; Double Speed Mode; DEM = OFF; SLOW
= “1”)
Parameter
Symbol
Digital Filter
Passband
±
0.04dB (Note 21)
-3.0dB
Stopband (Note 21)
SB
Passband Ripple
PR
Stopband Attenuation
SA
Group Delay (Note 20)
GD
Digital Filter + SCF
Frequency Response: 0
40.0kHz
DAC SLOW ROLL-OFF FILTER CHARACTERISTICS (fs = 192kHz)
(Ta = 25
°
C; VA=4.75
5.25V; VD=3.0
3.6V, VT=3.0
5.25V; fs = 192kHz; Quad Speed Mode; DEM = OFF; SLOW
= “1”)
Parameter
Symbol
Digital Filter
Passband
±
0.04dB (Note 21)
-3.0dB
Stopband (Note 21)
SB
Passband Ripple
PR
Stopband Attenuation
SA
Group Delay (Note 20)
GD
Digital Filter + SCF
Frequency Response: 0
80.0kHz
Note 21. The passband and stopband frequencies scale with fs.
For example, PB = 0.185×fs (@
±
0.04dB), SB = 0.888×fs.
min
typ
max
Units
PB
0
-
18.2
28
8.1
-
kHz
kHz
kHz
dB
dB
1/fs
39.2
72
-
±
0.005
-
-
+0/-5
-
dB
min
typ
max
Units
PB
0
-
39.6
28
17.7
-
±
0.005
-
kHz
kHz
kHz
dB
dB
1/fs
85.3
72
-
-
+0/-4
-
dB
min
typ
max
Units
PB
0
-
79.1
28
35.5
-
±
0.005
-
kHz
kHz
kHz
dB
dB
1/fs
171
72
-
-
+0/-5
-
dB
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