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AK4616VQ Datasheet, PDF (30/46 Pages) Asahi Kasei Microsystems – 24bit 3ch/5ch Audio CODEC with Mic Amplifier | |||
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[AK4616]
AK4616ã®ADCã¨DACã¯PMADC bitã¨PMDAC bitã§ããããç¬ç«ã«ãã¯ã¼ãã¦ã³ã§ãã¾ããã¾ããDAC1-3ã¯
PMDA1-3 bitsã§ããããç¬ç«ã«ãã¯ã¼ãã¦ã³ãã§ãã¾ãããã®ã¨ãã¬ã¸ã¹ã¿å¤ã¯åæåããã¾ãããPMADC
bit= â0âã®ã¨ãSDTO1-3 pins㯠âLâ ã«ãªãã¾ããPMDAC bit= â0âã®ã¨ããã¢ããã°åºåã¯VCOMãåºåãDZF
pin㯠âHâ ã«ãªãã¾ãããã®ã¨ãç°é³ãçããã®ã§ãåé¡ã«ãªãå ´åã¯å¤é¨ã§ãã¥ã¼ããã¦ä¸ãããFigure 27
ã«ãã¯ã¼ãã¦ã³åã³ãã¯ã¼ã¢ããæã®ã·ã¼ã±ã³ã¹ä¾ã示ãã¾ãã
PMADC/PMDAC bit
4~5/fs (9)
3~4/fs (10)
(1)
ADC Internal
State
DAC Internal
State
ADC In
(Analog)
ADC Out
(Digital)
DAC In
(Digital)
DAC Out
(Analog)
Clock In
MCLK,LRCK,SCLK
External
Mute
Normal Operation
Power-down
Normal Operation
GD (3)
Power-down
Init Cycle
516/fs (2)
Init Cycle
Normal Operation
Normal Operation
GD
(4)
â0âdata
â0âdata
(3)
GD
(7)
(5)
(6)
GD
(7)
Donât care
(8)
Mute ON
注ï¼
(1) ADCã¯ãã¯ã¼ãã¦ã³è§£é¤å¾ãã¢ããã°é¨ãåæåããã¾ãã
åæåãµã¤ã¯ã«ã¯1056fsã«ãªãã¾ããã¹ã¿ã¼ãã¢ããæã®ADCã¸ã®å
¥åé»å§ã¯åä½ç¶æ
ã®ã³ã¢ã³é»å§ã
å
¥åãã¦ãã ããã
(2) DACã¯ãã¯ã¼ãã¦ã³è§£é¤å¾ãã¢ããã°é¨ãåæåããã¾ãã
(3) ã¢ããã°å
¥åã«å¯¾ãããã£ã¸ã¿ã«åºåããã£ã¸ã¿ã«å
¥åã«å¯¾ããã¢ããã°åºåã¯ç¾¤é
延ããã¡ã¾ãã
(4) ãã¯ã¼ãã¦ã³æADCåºå㯠â0â ãã¼ã¿ã§ãã
(5) ãã¯ã¼ãã¦ã³æDACåºåã¯Hi-Zã§ãã
(6) ã¢ããã°é¨ã®åæåçµäºæADCåºåã«ç°é³ãåºåããã¾ããç°é³ãåé¡ã«ãªãå ´åã¯ãã£ã¸ã¿ã«åºåã
ãã¥ã¼ããã¦ä¸ããã
(7) PMDAC bit ã«â0âãæ¸ãè¾¼ãã§ãã4~5/fså¾ãåã³PMDAC bit ã«â1âãæ¸ãè¾¼ãã§ãã519â¼520/fså¾ã§ç°
é³ãåºåããã¾ãã
(8) ç°é³(7)ãåé¡ã«ãªãå ´åã¯ã¢ããã°åºåãå¤é¨ã§ãã¥ã¼ããã¦ä¸ããã
(9) PMADC bitã« â0âãæ¸ãè¾¼ãã§ãã該å½ããADCããã¯ã¼ãã¦ã³ããã¾ã§4~5/fs ãããã¾ãã
PMDAC bitã« â0âãæ¸ãè¾¼ãã§ãã該å½ããDACããã¯ã¼ãã¦ã³ããã¾ã§4~5/fs ãããã¾ãã
(10) PMADC bit åã³PMDAC bitã â1âã«ãã¦ããåæåãµã¤ã¯ã«ãéå§ããã¾ã§3â¼4/fsãããã¾ãã
Figure 27. ããããã¯ã¼ãã¦ã³ï¼ããããã¯ã¼ã¢ããã·ã¼ã±ã³ã¹ä¾
MS1437-J-01
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2012/11
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