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AK5701KN_17 Datasheet, PDF (51/64 Pages) Asahi Kasei Microsystems – PLL & MIC-AMP内蔵16-Bit Stereo ADC | |||
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[AK5701]
2. PLLã¹ã¬ã¼ãã¢ã¼ãã§å¤é¨ã¯ããã¯(EXLRCK or EXBCLK pin)ã使ç¨ããå ´å
Power Supply
PDN pin
PMVCM bit
(Addr:10H, D2)
PMPLL bit
(Addr:11H, D0)
EXLRCK pin
EXBCLK pin
Internal Clock
(1)
(2) (3)
Example:
Audio I/F Format : I2S
PLL Reference clock: EXBCLK
EXBCLK frequency: 64fs
Sampling Frequency: 44.1kHz
4f(s1o) fPower Supply & PDN pin = âLâ ï âHâ
(2) Addr:11H, Data:0CH
Addr:14H, Data:23H
Addr:15H, Data:2FH
Input
(4)
(3) Addr:10H, Data:04H
(5)
Figure 46. Clock Set Up Sequence (2)
(4) Addr:11H, Data:0DH
<æé ä¾>
(1)é»æºç«ã¡ä¸ãå¾ãPDN pin âLâ ï âHâ
ãã®åºéã¯AK5701ã®ãªã»ããã®ããã150ns以ä¸ã® âLâåºéãå¿
è¦ã§ãã
(2)ãã®åºéã«ãDIF1-0, FS3-0, PLL3-0 bitsã®è¨å®ãè¡ã£ã¦ä¸ããã
(3)VCOMã®ãã¯ã¼ã¢ãã: PMVCM bit = â0â ï â1â
åãããã¯ãç«ã¡ä¸ããåã«æåã«VCOMãç«ã¡ä¸ãã¦ä¸ããã
(4)PMPLL bit = â0â ï â1âãè¨å®ããPLLåºæºã¯ããã¯(EXLRCK or EXBCLK pin)ãä¾çµ¦ãããå¾ãPLL
åä½ãã¹ã¿ã¼ããã¾ããPLLã®ããã¯æéã¯EXLRCKãPLLåºæºã¯ããã¯å
¥åã®å ´åã160ms(max),
EXBCLKãPLLåºæºã¯ããã¯ã§VCOC pinã®å¤ä»ãã10k+4.7nFã®å ´åã2ms(max)ã§ã(Table 4)ã
(5) PLLãå®å®å¾ãæ£å¸¸ãªåä½ãéå§ãã¾ãã
MS0404-J-04
- 51 -
2015/10
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