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AK8141 Datasheet, PDF (2/9 Pages) Asahi Kasei Microsystems – Register Programable Single Clock Generator | |||
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1. 端å説æ
ï¼ï¼ï¼ï¼ç«¯åé
ç½®å³
[AK8141]
1: OE
2: VDD
3: VSS
4: CLKOUT
8:CLKIN
7:XLAT
6:SCLK
5:SDA
ï¼ï¼ï¼ï¼ç«¯åæ©è½èª¬æ
端åå
端åçªå·
(端åã¿ã¤ã)
説æ
1
OE
(DI)
CLKOUTåºåã¤ãã¼ãã«ç«¯å
ãã®ç«¯åãâLâã®æãPLLã¯ãã¯ã¼ãã¦ã³ãããCLKOUT端åã¯âLâã¨ãªã
ã¾ããæ¬ç«¯åã¯100kΩã§ãã«ãã¦ã³ããã¦ãã¾ãã
VDD
é»æºç«¯å
2
(PWR)
3
VSS
æ¥å°ç«¯å
(PWR)
ã¯ããã¯åºå端å
4
CLKOUT 27MHzï½50MHz(1MHzå»ã¿),33.75MHz,40.5MHz,49.5MHzã®ã¯ããã¯
(DO)
ãåºåãã¾ããã¯ããã¯å¨æ³¢æ°ã¯ã¬ã¸ã¹ã¿ã§è¨å®ãã¾ããOE=âLâã®æãâLâ
ã¨ãªãã¾ãã
SDATA ã·ãªã¢ã«ãã¼ã¿å
¥å端å
5
(DI)
ãã¼ã¿8bitãç¶ãã¦ã¢ãã¬ã¹8bitãLSBããå
¥åãã¦ä¸ããã
ã·ãªã¢ã«ã¯ããã¯å
¥å端å
SCLK
6
(DI)
ãã¼ã¿æ¸ãè¾¼ã¿ã«ã¯16ã¯ããã¯å
¥åãã¦ä¸ããã16ã¯ããã¯ä»¥ä¸å
¥åãã
å ´åãæå¾ãã16ã¯ããã¯åããã¼ã¿åã³ã¢ãã¬ã¹ã¨èªèããã¾ãã
ã©ã¤ãå¶å¾¡ä¿¡å·å
¥å端å
7
XLAT æ¸è¾¼ã¿æ以å¤ã¯XLAT=âHâã«ãã¦ä¸ããã
(DI)
âLâãã«ã¹ã®ç«ã¡ä¸ããã¨ãã¸ã§ãã¼ã¿ãã©ãããã¾ãã
æ¬ç«¯åã¯100kΩã§ãã«ã¢ããããã¦ãã¾ãã
ã¯ããã¯å
¥å端å
48.0MHz,24MHz,12.0MHz,27MHzã®ããããã®å¨æ³¢æ°ãå
¥åãã¦ä¸ãããå
¥å
CLKIN
8
ï¼DIï¼
å¨æ³¢æ°ã¯ã¬ã¸ã¹ã¿ã§è¨å®ãã¾ããã¯ããã¯å
¥åããªãå ´åãOE=âLâ(ãã¯
ã¼ãã¦ã³ç¶æ
)ã«ãã¦ä¸ãããç¡å
¥åãããã¯ä¸å®å®ãªã¯ããã¯å
¥åã®å ´
åãåºåãå®å®ãã¾ããã
PWRï¼é»æº
DO ï¼ãã¸ã¿ã«åºå
DI ï¼ãã¸ã¿ã«å
¥å
MS0607-J-02
-2-
2010/10
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