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AK4616VQ Datasheet, PDF (32/46 Pages) Asahi Kasei Microsystems – 24bit 3ch/5ch Audio CODEC with Mic Amplifier | |||
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[AK4616]
â DACåå¥ãã¯ã¼ãã¦ã³æ©è½
AK4616ã§ã¯DACãã¯ã¼ããã¸ã¡ã³ããããPMDA3-1 bitã«ããåå¥ã«ãã¯ã¼ãã¦ã³ããããã¨ãã§ãã¾ãã
ãã¯ã¼ããã¸ã¡ã³ããããã â0âã®ã¨ãã該å½ããDACã®ã¢ããã°é¨ããã£ã¸ã¿ã«é¨ã¯å
±ã«ãã¯ã¼ãã¦ã³ã
ãã¾ããPMDA3-1 bitã«ãããã¯ã¼ãã¦ã³ãããDACã®ã¢ããã°åºåã¯Hi-Zã«ãªãã¾ãããã¯ã¼ãã¦ã³ã®è¨
å®ã»è§£é¤ã®ä¸¡æ¹ã§ç°é³ãçãããããåé¡ã«ãªãå ´åã¯å¤é¨ã§ãã¥ã¼ãããããã¯PMDAC bit = â0âã¾ãã¯
RSTN bit = â0âã®æã«PMDA3-1 bitã®è¨å®ãè¡ã£ã¦ãã ãããFigure 29ã«PMDA3-1 bitã«ãããã¯ã¼ãã¦ã³åã³
ãã¯ã¼ã¢ããæã®ã·ã¼ã±ã³ã¹ã示ãã¾ãã
PMDA3-1 bit
Power Down Channel
4~5/fs (4)
DAC Digital
Internal State
Normal Operation
DAC Analog
Internal State
Normal Operation
2~3/fs (5)
4~5/fs (4)
2~3/fs (5)
Power-down
Normal Operation
Power-down
Normal Operation
516/fs (6)
516/fs (6)
Power-down Init Cycle Normal Operation Power-down Init Cycle Normal Operation
DAC In
(Digital)
DAC Out
(Analog)
(1)
GD
(3) (2)
â0âdata
(3)
(3) (2)
GD
(3)
Normal Operation Channel
DAC In
(Digital)
â0âdata
GD
GD
DAC Out
(Analog)
注ï¼
(1) ãã£ã¸ã¿ã«å
¥åã«å¯¾ããã¢ããã°åºåã¯ç¾¤é
延(GD)ããã¡ã¾ãã
(2) PMDA3-1 bitã§ãã¯ã¼ãã¦ã³ãããDACã®ã¢ããã°åºåã¯Hi-Zã§ãã
(3) PMDA3-1 bitã«â0âãæ¸ãè¾¼ãã§ãã4~5/fsã§ãPMDA3-1 bitã« â1âãæ¸ãè¾¼ãã§ãã518â¼519/fs ã§DAC
ã®åºåã«ã¯ç°é³ãåºåããã¾ãã
(4) PMDA3-1 bitã« â0âãæ¸ãè¾¼ãã§ãã該å½ããDACããã¯ã¼ãã¦ã³ããã¾ã§4~5/fs ãããã¾ãã
(5) PMDA3-1 bitã« â1âãæ¸ãè¾¼ãã§ããåæåãµã¤ã¯ã«ãéå§ããã¾ã§2â¼3/fsãããã¾ãã
(6) DACã¯ãã¯ã¼ãã¦ã³è§£é¤å¾ãã¢ããã°é¨ãåæåããã¾ãã
Figure 29. DACåå¥ãã¯ã¼ãã¦ã³ä¾
MS1437-J-01
- 32 -
2012/11
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