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AK4414EQ Datasheet, PDF (48/51 Pages) Asahi Kasei Microsystems – High Performance 120dB 32-Bit 4ch DAC | |||
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[AK4414]
SACDãã©ã¼ãããããã¯(Scarlet Book)ã§ã¯ãSACDã®åçæã®ãã£ã«ã¿ç¹æ§ã¨ãã¦ãã«ãããªã50kHz以ä¸ã®
ã¹ãã¼ãâ30dB/oct以ä¸ã®ãã£ã«ã¿ãæ¨å¥¨ããã¦ãã¾ããAK4414ã§ã¯å
é¨ãã£ã«ã¿(Table 31)ã¨å¤é¨ã¢ããã°ã
ã£ã«ã¿(Figure 28)ã«ããããã®ãã£ã«ã¿ç¹æ§ãå®ç¾å¯è½ã§ãã
Frequency
Gain
20kHz
â0.4dB
50kHz
â2.8dB
100kHz
â15.5dB
Table 31. DSD mode å
é¨ãã£ã«ã¿å¿ç
2.0k
A OU T-
2.4Vpp
2200p
2.0k
AOUT+
2.4Vpp
1.8k
3300p
1.8k
4.3k
4.3k
1.0k
1.0k
270p
270p
+Vop
-
+
-Vop
An alo g
Out
5.42Vp p
Figure 28. DSD mode ã®å¤ä»ã3次LPFåè·¯ä¾
Frequency
Gain
20kHz
â0.05dB
50kHz
â0.51dB
100kHz
â16.8dB
DC gain = 1.07dB
Table 32. 3次LPF å¿ç (Figure 28)
4. å³å®ä¾
THD+Nã¨ã³ã³ãã³ãµãéããå¨æ³¢æ°ã®é¢ä¿ãFigure 29ã«ç¤ºãã¾ãã
測å®æ¡ä»¶
Ta=25°C; AVDD=DVDD=3.3V; VDD1,2=VREFH1,2=5V; AVSS, DVSS, VSS1,2=0V; fs=44.1kHz; 24 bit Output;
BW=10Hz â¼ 20kHz; DFS0=âLâ, DFS1=âLâ, Measured by Audio Precision System Two.
C=470uF
C=220uF
C=10uF
C=2200uF
C=1000uF
MS1476-J-00
Figure 29. THD+N vs. Frequency
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2013/01
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