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AK5388AEQ Datasheet, PDF (17/31 Pages) Asahi Kasei Microsystems – 120dB 24-bit 192kHz 4-Channel ADC | |||
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[AK5388A]
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â ã·ã¹ãã ã¯ããã¯
AK5388Aãã¹ã¬ã¼ãã¢ã¼ãæã«å¿
è¦ã¨ãããã¯ããã¯ã¯MCLK (128fs/192fs/256fs/384fs/512fs/768fs), BICK
(48fsâ¼), LRCK (fs)ã§ããMCLKã¨LRCKã¯åæããå¿
è¦ã¯ããã¾ãããä½ç¸ãåãããå¿
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Table 1/2/3ã«æ¨æºã®ãªã¼ãã£ãªã¬ã¼ãã«å¯¾ãã¦AK5388Aã«å¿
è¦ã¨ãããåã¯ããã¯ã®å¨æ³¢æ°ã示ãã¾ãã
AK5385ã®ãã¹ã¿ã¯ããã¯å¨æ³¢æ°ã¯CKS1-0 pin (Table 4)ã§è¨å®ãã¾ãã
ã¹ã¬ã¼ãã¢ã¼ãæã«ã¯ãAK5388Aã¯LRCKã«ããä½ç¸æ¤åºåè·¯ãå
èµãã¦ãããããåä½ä¸ã«åã¯ããã¯ã®
å¨æ³¢æ°å¤æ´çã§å
é¨ã¿ã¤ãã³ã°ããããå ´åã«ã¯èªåçã«ãªã»ããããããä½ç¸åãããè¡ããã¾ãã
ã¹ã¬ã¼ãã¢ã¼ãã§ã®åä½æ(PDN pin = âHâ)ã¯ãåå¤é¨ã¯ããã¯(MCLK, BICK, LRCK)ãæ¢ãã¦ã¯ããã¾ããã
ãããã®ã¯ããã¯ãä¾çµ¦ãããªãå ´åãå
é¨ã«ãã¤ãããã¯ãªãã¸ãã¯ã使ç¨ãã¦ãããããéé»æµãæµã
åä½ãç°å¸¸ã«ãªãå¯è½æ§ãããã¾ããã¯ããã¯ãæ¢ããå ´åã¯ãã¯ã¼ãã¦ã³ç¶æ
(PDN pin = âLâ)ã«ãã¦ä¸ã
ãããã¹ã¿ã¢ã¼ãã§ã¯ãã¯ã¼ãã¦ã³æ以å¤ã¯ãå¤é¨ã¯ããã¯(MCLK)ãä¾çµ¦ãã¦ä¸ããã
è¤æ°ããã¤ã¹ã«ã¦åæãã¨ãå ´åãåä½CLKåãæ¿ãæãã¯ããã¯ã¢ã¼ãåæ¿æããã£ã¸ã¿ã«IFåãæ¿ãæ
ã«ã¯ãä¸åº¦PDN pinã«ã¦ãªã»ãããå®æ½ãã¦ãã ãããã¾ãCLKãã¢ã¼ãã®åãæ¿ãã¯ãªã»ããæéä¸ã«å®
æ½ãã¦ãã ããããªã»ãã解é¤å¾ã¯å®å®ããCLKãä¾çµ¦ãã¦ãã ããã
fs
32kHz
48kHz
96kHz
192kHz
fs
32kHz
48kHz
96kHz
192kHz
fs
32kHz
48kHz
96kHz
192kHz
128fs
N/A
N/A
N/A
24.576MHz
128fs
N/A
N/A
N/A
24.576MHz
128fs
N/A
N/A
N/A
24.576MHz
192fs
N/A
N/A
N/A
36.864MHz
MCLK
256fs
384fs
8.192MHz 12.288MHz
12.288MHz 18.432MHz
24.576MHz
N/A
N/A
N/A
Table 1. System Clock Example (Slave Mode)
512fs
768fs
16.384MHz 24.576MHz
24.576MHz 36.864MHz
N/A
N/A
N/A
N/A
(N/A: Not available)
192fs
N/A
N/A
N/A
36.864MHz
MCLK
256fs
384fs
8.192MHz 12.288MHz
12.288MHz 18.432MHz
24.576MHz 36.864MHz
N/A
N/A
Table 2. System Clock Example (Master Mode)
512fs
768fs
16.384MHz 24.576MHz
24.576MHz 36.864MHz
N/A
N/A
N/A
N/A
(N/A: Not available)
192fs
N/A
N/A
N/A
36.864MHz
MCLK
256fs
384fs
N/A
N/A
N/A
N/A
24.576MHz 36.864MHz
N/A
N/A
Table 3. System Clock Example (Auto Mode)
512fs
768fs
16.384MHz 24.576MHz
24.576MHz 36.864MHz
N/A
N/A
N/A
N/A
(N/A: Not available)
MS1494-J-02
- 17 -
2013/05
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