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AK4414EQ Datasheet, PDF (22/51 Pages) Asahi Kasei Microsystems – High Performance 120dB 32-Bit 4ch DAC | |||
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[AK4414]
MCLK= 256fs/384fsã®ã¨ããAuto Setting Modeã¯32kHz~96kHzã®ãµã³ããªã³ã°ã¬ã¼ãã¾ã§å¯¾å¿ãã¾ã(Table 12)ã
ä½ãã32kHz~48kHzã®ãµã³ããªã³ã°ã¬ã¼ãã§ã¯ãMCLK= 256fs/384fsã§ã®DR, S/Nã¯ãMCLK= 512fs/768fsã®æ
ã«æ¯ã¹ã¦3dBç¨åº¦å£åãã¾ãã
ACKS pin
MCLK
DR,S/N
L
256fs/384fs/512fs/768fs
120dB
H
256fs/384fs
117dB
H
512fs/768fs
120dB
Table 12. MCLKå¨æ³¢æ°ã¨DR, S/Nã®é¢ä¿(fs = 44.1kHz)
3. Digital Filter Setting
SD bit SLOW bit
Mode
0
0
Sharp roll-off filter
0
1
Slow roll-off filter
1
0
Short delay sharp roll-off (default)
1
1
Short delay slow roll-off
Table 13. ãã£ã¸ã¿ã«ãã£ã«ã¿è¨å® (Serial Mode)
[2] DSD mode
å¿
è¦ãªã¯ããã¯ã¯ãMCLK, DCLKã§ããMCLKã¨DCLKã¯åæããå¿
è¦ã¯ããã¾ããä½ç¸ãåãããå¿
è¦ã¯
ããã¾ãããMCLKå¨æ³¢æ°ã¯DCKS bitã§è¨å®ãã¾ãã
åä½ä¸(PDN pin = âHâ)ã«ãMCLKãæ¢ã¾ã£ãå ´åã¯ãAK4414ã¯èªåçã«ãªã»ããç¶æ
ã«ãªããã¢ããã°åºå
ã¯AVDD/2é»å§(typ)ãåºåãã¾ãã
DCKS bit
0
1
MCLK Frequency DCLK Frequency
512fs
64fs
768fs
64fs
Table 14. System Clock (DSD Mode)
(default)
MS1476-J-00
- 22 -
2013/01
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