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AK4591VQ Datasheet, PDF (29/41 Pages) Asahi Kasei Microsystems – 入力セレクタ付24bit 4ch ADC + 24bit 6ch DAC | |||
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[AK4591]
(5) ãªã¼ãã£ãªã¤ã³ã¿ã¼ãã§ã¼ã¹
5-1) SDATI1,SDATI2,SDATI3,SDATO1,SDATO2 (BITCLK64fs)
ã·ãªã¢ã«ãªã¼ãã£ãªãã¼ã¿ãã³(SDATI1,SDATI2,SDATI3,SDATO1,SDATO2)ã¯ãLRCLK,BITCLKã使
ç¨ãã¦å¤é¨ã·ã¹ãã ã¨ã®ã¤ã³ã¿ã¼ãã§ã¼ã¹ãè¡ãã¾ãã
ãã¼ã¿ãã©ã¼ãããã¯2'sã³ã³ããªã¡ã³ãã®MSBãã¡ã¼ã¹ãã§ãã
5-1-a) AKMæ¨æºãã©ã¼ããã( CONT0 : DIFS=0 )
ã¾ããBITCLKã64fsã®å ´åã«ã¤ãã¦èª¬æãã¾ããAK4591ã§ã¯ãã³ã³ããã¼ã«ã¬ã¸ã¹ã¿ãè¨å®ããã
ã¨ã«ãããç¬ç«ã«å
¥åºåãã©ã¼ããããè¨å®ãããã¨ãåºæ¥ã¾ããåæè¨å®ã§ã¯åè©°ã(24bit)ã§ãããã³
ã³ããã¼ã«ã¬ã¸ã¹ã¿è¨å®ã«ããå¾è©°ã24bitï¼å¾è©°ã16bitã«ã対å¿ãã¾ãï¼è©³ããã¯,8.(1)ã³ã³ããã¼ã«ã¬
ã¸ã¹ã¿è¨å®ãåç
§ãã¦ãã ãããï¼
BITCLKã¯48fsã§ãå
¥åãããã¨ã¯å¯è½ã§ããããã®å ´åã¯ãã¹ã¦åè©°ã24bitã«è¨å®ãã¦ãã ããã
â ã¢ã¼ã0 åè©°ã24bit
LRCLK
Left ch
Right ch
BITCLK
SDATI*
31 30 29
23 22 21
10 9 8 7 6 5 4 3 2 1 0 31 30 29
210
ï¼2322222211
10 9 8 7 6 5 4 3 2 1 0
2 10
SDATO*
23 22 21
210
ï¼2322222211
2 10
(*:1, 2, 3, 4)
â¡ ã¢ã¼ã1 å¾è©°ã24bit
23ï¼MSBï¼0ï¼LSB
LRCLK
BITCLK
SDATI*
SDATO*
Left ch
Right ch
31 30
23 22 21 20 19 18 17 16 15
Don't Care 23 22 21 20 19 18 17 16 15
1 0 31 30
23 22 21 20 19 18 17 16 15 1 0
1 0 Don't Care 23 22 21 20 19 18 17 16 15 1 0
23 22 21 20 19 18 17 16 15 1 0
23 22 21 20 19 18 17 16 15 1 0
(*:1, 2, 3, 4)
⢠ã¢ã¼ã3 å¾è©°ã16bit
23ï¼MSBï¼0ï¼LSB
LRCLK
Left ch
Right ch
BITCLK
SDATI*
31 30
15 14 13 12 11 10 9 8 7
Don't Care 15 14 13 12 11 10 9 8 7
1 0 31 30
15 14 13 12 11 10 9 8 7
1 0 Don't Care 15 14 13 12 11 10 9 8 7
10
10
SDATO*
15 14 13 12 11 10 9 8 7 1 0
(*:1, 2, 3, 4)
15ï¼MSBï¼0ï¼LSB
5-1-b) I2Säºæãã©ã¼ããã( CONT0 : DIFS=1 )
15 14 13 12 11 10 9 8 7 1 0
[MS0295-J-01]
- 29 -
2012/12
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