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AK4591VQ Datasheet, PDF (34/41 Pages) Asahi Kasei Microsystems – 入力セレクタ付24bit 4ch ADC + 24bit 6ch DAC | |||
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[AK4591]
(8) DACé¨ã½ãããã¥ã¼ãæ©è½
DACé¨ã«ã¯ã½ãããã¥ã¼ãåè·¯ãå
èµããã¦ãã¾ããããã¯ãDAC1,DAC2,DAC3ã«å
±éã«åä½ãã¾ãã
ã½ãããã¥ã¼ãã¯ããã¸ã¿ã«çã«å®è¡ããã¾ããSMUTEãã³ãâHâã¾ãã¯ã³ã³ããã¼ã«ã¬ã¸ã¹ã¿CONT5
ã®SMUTE=1ã«è¨å®ããã¨ã³ã³ããã¼ã«ã¬ã¸ã¹ã¿(CONT5)SF1,SF0ã§è¨å®ããLRCLKãµã¤ã¯ã«+2LRCLK
(max)ãµã¤ã¯ã«ã§å
¥åãã¼ã¿ãï¼âdBã¾ã§ã¢ãããã¼ã·ã§ã³ããã¾ããï¼SF1=0,SF0=0ã®ã¨ãã¯1008ï½1
010LRCLKã§ã¢ãããã¼ã·ã§ã³ããã¾ããï¼
SMUTEãã³ãâLâ ã³ã³ããã¼ã«ã¬ã¸ã¹ã¿ã®SMUTE=0ã«ããã¨ï¼âdBç¶æ
ã解é¤ãã,è¨å®ããLRCLK
ãµã¤ã¯ã«+ï¼LRCLK(max)ãµã¤ã¯ã«ã§0dBã¾ã§å¾©å¸°ãã¾ãã
ï¼SMUTEãã³ã¨ã³ã³ããã¼ã«ã¬ã¸ã¹ã¿SMUTEã®ORãã¨ã£ã¦å
é¨SMUTEã¨ãã¦ãã¾ããï¼3.ãããã¯
å³åç
§ï¼ï¼
ã½ãããã¥ã¼ãéå§å¾ãè¨å®ãããµã¤ã¯ã«ä»¥å
ã«è§£é¤ãããã¨ã¢ãããã¼ã·ã§ã³ãä¸æãããåããµ
ã¤ã¯ã«ã§0dBã¾ã§å¾©å¸°ãã¾ããï¼ã½ãããã¥ã¼ãããããä½ç½®ã«ãã£ã¦æ大ï¼LRCLKã®èª¤å·®ã¯åºã¾ããï¼
ã½ãããã¥ã¼ãæ©è½ã¯ã S_RESET ãâHâ ï¼DACé¨ãåä½ç¶æ
ï¼ã®ã¨ãæå¹ã«åä½ãã¾ãã
ï¼âdB(0)ã¾ã§ã¢ãããã¼ã·ã§ã³ãããå¾ãã·ã¹ãã ãªã»ãã: S_RESET =âLâãè¡ã£ãå ´åãDACé¨
ããªã»ããç¶æ
ã«ãªãããããªã»ããæã¨ãªã»ãã解é¤æã«ã¯ãªãã¯ãã¤ãºï¼ããé³ï¼ãçºçããå¯è½
æ§ãããã¾ãã®ã§å¤é¨ãã¥ã¼ãåè·¯çã§å¯¾çãè¡ã£ã¦ãã ããã
ã¢ãããã¼ã·ã§ã³å¤ã¯ã INIT_RESET =âLâã§åæåããã S_RESET =âLâã§ã¯åæåããã¾ããã
SMUTE
0dB
Attenuation
-âdB
è¨å®å¤+2LRCLK(max)
群é
延GD
è¨å®å¤+2LRCLK(max)
群é
延GD
åºåï½²ï¾ï½°ï½¼ï¾
ã½ãããã¥ã¼ãåä½(SMUTEãã³ã®å ´å)
SMUTE
0dB
Attenuation
-âdB
S_RESET
åºåï½²ï¾ï½°ï½¼ï¾
å¤é¨ï¾ï½ï½°ï¾åè·¯
è¨å®å¤+2LRCLK(max)
è¨å®å¤+2LRCLK(max)
群é
延GD
クï¾ï½¯ï½¸ï¾ï½²ï½½ï¾
Mute ON
S_RESET æã®ã½ãããã¥ã¼ãã³ã³ããã¼ã«ä¾(SMUTEãã³ã®å ´å)
[MS0295-J-01]
- 34 -
2012/12
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