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AK4616VQ Datasheet, PDF (27/46 Pages) Asahi Kasei Microsystems – 24bit 3ch/5ch Audio CODEC with Mic Amplifier | |||
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[AK4616]
â ã½ãããã¥ã¼ãæ©è½
ã½ãããã¥ã¼ãã¯ãã£ã¸ã¿ã«çã«å®è¡ããã¾ããSMUTE bitã â1â ã«ããã¨ãã®æç¹ã®ATTè¨å®å¤ããè¨å®ã
ãããã£ã¸ã¿ã«ããªã¥ã¼ã ã®é·ç§»æé (Table 7)以å
ã§å
¥åãã¼ã¿ã-â (â0â)ã¾ã§ã¢ããã¼ã·ã§ã³ããã¾ãã
SMUTE bitã â0â ã«ããã¨ã-âããè¨å®ããããã£ã¸ã¿ã«ããªã¥ã¼ã ã®é·ç§»æé (Table 7)以å
ã§ATTè¨å®å¤ã¾
ã§å¾©å¸°ãã¾ããã½ãããã¥ã¼ãéå§å¾ã-âã¾ã§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
SMUTE bit
0dB
(1)
Attenuation Level
(2)
(4)
-â
GD
GD
(3)
AOUT
注:
(1) è¨å®ããããã£ã¸ã¿ã«ããªã¥ã¼ã ã®é·ç§»æé (Table 7)以å
ã§-â (â0â)ã¾ã§ã¢ããã¼ã·ã§ã³ããã¾ããä¾
ãã°ãMode 0æãATTè¨å®å¤ã â00Hâã®å ´åã¯4080/fsãµã¤ã¯ã«ã§ããã½ãããã¥ã¼ãã§é·ç§»ããATTå¤
ã¯00Hï½FFHã§ãã
(2) è¨å®ããããã£ã¸ã¿ã«ããªã¥ã¼ã ã®é·ç§»æé (Table 7)以å
ã§ATTè¨å®å¤ã¾ã§å¾©å¸°ãã¾ããä¾ãã°ãMode
0æãATTè¨å®å¤ã âFFHâã®å ´åã¯4080/fsãµã¤ã¯ã«ã§ããã½ãããã¥ã¼ãã§é·ç§»ããATTå¤ã¯FFHï½00H
ã§ãã
(3) ãã£ã¸ã¿ã«å
¥åã«å¯¾ãã¦ã¢ããã°åºåã¯ç¾¤é
延(GD)ãæã¡ã¾ãã
(4) ã½ãããã¥ã¼ãéå§å¾ã-âã¾ã§ã¢ããã¼ã·ã§ã³ãããåã«è§£é¤ãããã¨ã¢ããã¼ã·ã§ã³ãä¸æãããå
ããµã¤ã¯ã«ã§ATTè¨å®å¤ã¾ã§å¾©å¸°ãã¾ãã
Figure 24. ã½ãããã¥ã¼ãæ©è½
MS1437-J-01
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2012/11
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