參數(shù)資料
型號: AK4396VF
廠商: Asahi Kasei Microsystems Co.,Ltd
英文描述: Advanced Multi-Bit 192kHz 24-Bit ツヒ DAC
中文描述: 先進的多位192kHz的24位數(shù)模轉(zhuǎn)換器ツヒ
文件頁數(shù): 36/38頁
文件大?。?/td> 435K
代理商: AK4396VF
ASAHI KASEI
[AK4396]
MS0336-E-00
2004/08
- 36 -
It is recommended by SACD format book (Scarlet Book) that the filter response at SACD playback is an analog low pass
filter with a cut-off frequency of maximum 50kHz and a slope of minimum 30dB/Oct. The AK4396 can achieve this filter
response by combination of the internal filter (Table 17) and an external filter (Figure 18).
Frequency
20kHz
50kHz
100kHz
Table 17. Internal Filter Response at DSD mode
AOUT-
Gain
0.4dB
2.8dB
15.5dB
1.8k
4.3k
1.0k
1.8k
1.0k
4.3k
270p
+Vop
270p
-Vop
AOUT+
3300p
Analog
Out
2.0k
2.0k
2200p
-
+
2.8Vpp
6.34Vpp
2.8Vpp
Figure 18. External 3rd order LPF Circuit Example for DSD
Frequency
20kHz
50kHz
100kHz
DC gain = 1.07dB
Table 18. 3rd order LPF (Figure 18) Response
Gain
0.05dB
0.51dB
16.8dB
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