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AK4414EQ Datasheet, PDF (34/51 Pages) Asahi Kasei Microsystems – High Performance 120dB 32-Bit 4ch DAC | |||
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[AK4414]
â ã½ãããã¥ã¼ãæ©è½
ã½ãããã¥ã¼ãã¯ãã£ã¸ã¿ã«çã«å®è¡ããã¾ããSMUTE pinãâHâã¾ãã¯SMUTE bitãâ1âã«ããã¨ãã®æç¹ã®
ATTè¨å®å¤ããATTè¨å®å¤ à ATTé·ç§»æéã§å
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ãâLâã¾ãã¯SMUTE bitãâ0âã«ããã¨ââç¶æ
ã解é¤ãããââããATTè¨å®å¤ à ATTé·ç§»æéã§ATTè¨å®å¤ã¾
ã§å¾©å¸°ãã¾ããã½ãããã¥ã¼ãéå§å¾ãââã¾ã§ã¢ããã¼ã·ã§ã³ãããåã«è§£é¤ãããã¨ã¢ããã¼ã·ã§ã³ãä¸
æãããåããµã¤ã¯ã«ã§ATTè¨å®å¤ã¾ã§å¾©å¸°ãã¾ããã½ãããã¥ã¼ãæ©è½ã¯ä¿¡å·ãæ¢ããã«ä¿¡å·æºãåãæ¿
ããå ´åãªã©ã«æå¹ã§ãã
SM UTE pin or
SM UTE bit
(1)
ATT_Level
A tte n u a tio n
(1)
(3)
-â
GD
GD
(2)
(2)
AOUT
DZF pin
(4)
8192/fs
注ï¼
(1) ATTè¨å®å¤ à ATTé·ç§»æéãä¾ãã°ãNormal Speed ModeæãATTè¨å®å¤ãâ255âã®å ´åã¯1020LRCKãµ
ã¤ã¯ã«ã§ãã
(2) ãã£ã¸ã¿ã«å
¥åã«å¯¾ããã¢ããã°åºåã¯ç¾¤é
延(GD)ããã¡ã¾ãã
(3) ã½ãããã¥ã¼ãéå§å¾ãââã¾ã§ã¢ããã¼ã·ã§ã³ãããåã«è§£é¤ãããã¨ã¢ããã¼ã·ã§ã³ãä¸æããã
åããµã¤ã¯ã«ã§ATTè¨å®å¤ã¾ã§å¾©å¸°ãã¾ãã
(4) åãã£ãã«ã®å
¥åãã¼ã¿ã8192åé£ç¶ãã¦â0âã®å ´åãåãã£ãã«ã®DZF pinã¯âHâã«ãªãã¾ãããã®å¾ã
åãã£ãã«ã®å
¥åãã¼ã¿ãâ0âã§ãªããªãã¨ã対å¿ãããã£ãã«ã®DZF pinãâLâã«ãªãã¾ãã
Figure 19. ã½ãããã¥ã¼ãæ©è½
â ã·ã¹ãã ãªã»ãã
é»æºONæã«ã¯ãPDN pinã«ä¸åº¦âLâãå
¥åãã¦ãªã»ãããã¦ä¸ããããã®ãªã»ããã«ããã¬ã¸ã¹ã¿è¨å®ãåæ
åããã¾ããPDN pin = âHâ å¾ã®MCLKå
¥åã«ããAK4414 ã®ã·ã¹ãã ãªã»ããã解é¤ãããã¢ããã°é¨ãã
ã¯ã¼ã¢ãããã¾ãããã£ã¸ã¿ã«é¨ã¯å
é¨ã«ã¦ã³ã¿ãMCLKã4/fsã«ã¦ã³ãããå¾ããã¯ã¼ãã¦ã³ç¶æ
ã解é¤ã
ãã¾ãã
MS1476-J-00
- 34 -
2013/01
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