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AK4591VQ Datasheet, PDF (20/41 Pages) Asahi Kasei Microsystems – 入力セレクタ付24bit 4ch ADC + 24bit 6ch DAC | |||
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[AK4591]
2) CONT1:DACï½²ï¾ï¾ï½°ï¾ï½ªï½°ï½½é¸æ
ã·ã¹ãã ãªã»ããæï¼ S_RESET ï¼"L"ï¼ã®ã¿æ¸è¾¼ã¿ãå¯è½ã§ãã
Command
Code
Write Read
22h 32h
Name
CONT1
D7
D3IF[1]
D6
D3IF[0]
D5
D2IF[1]
D4
D2IF[0]
D3
D1IF[1]
D2
D1IF[0]
D1
CKS
D0 Default
0
0000 0000
â D7,D6:D3IF[1:0] DAC3 å
¥åã¢ã¼ãé¸æ
D3IFï¾ï½°ï¾ï¾ D3IF[1] D3IF[0]
0
0
0
åè©°ã(24bit)
1
0
1
å¾è©°ã24bit
2
1
0
N/A
3
1
1
å¾è©°ã16bit
注)DIFS=1ã®æã¯ï¾ï½°ï¾ï¾è¨å®ã«é¢ä¿ãªãI2Säºæã¨ãªãã¾ãããD3IFï¾ï½°ï¾ï¾0ã«è¨å®ãã¦ä¸ããã
BITCLK48fsã®å ´åD3IFã¢ã¼ã0ããBITCLK32fsã®å ´åD3IFã¢ã¼ã3ã«è¨å®ãã¦ä¸ããã
â¡ D5,D4:D2IF[1:0] DAC2 å
¥åã¢ã¼ãé¸æ
D2IFï¾ï½°ï¾ï¾ D2IF[1] D2IF[0]
0
0
0
åè©°ã(24bit)
1
0
1
å¾è©°ã24bit
2
1
0
N/A
3
1
1
å¾è©°ã16bit
注)DIFS=1ã®æã¯ï¾ï½°ï¾ï¾è¨å®ã«é¢ä¿ãªãI2Säºæã¨ãªãã¾ãããD2IFï¾ï½°ï¾ï¾0ã«è¨å®ãã¦ä¸ããã
BITCLK48fsã®å ´åD2IFã¢ã¼ã0ããBITCLK32fsã®å ´åD2IFã¢ã¼ã3ã«è¨å®ãã¦ä¸ããã
⢠D3,D2:D1IF[1:0] DAC1 å
¥åã¢ã¼ãé¸æ
D1IFï¾ï½°ï¾ï¾ D1IF[1] D1IF[0]
0
0
0
åè©°ã(24bit)
1
0
1
å¾è©°ã24bit
2
1
0
N/A
3
1
1
å¾è©°ã16bit
注)DIFS=1ã®æã¯ï¾ï½°ï¾ï¾è¨å®ã«é¢ä¿ãªãI2Säºæã¨ãªãã¾ãããD1IFï¾ï½°ï¾ï¾0ãè¨å®ãã¦ä¸ããã
BITCLK48fsã®å ´åD1IFã¢ã¼ã0ããBITCLK32fsã®å ´åD1IFã¢ã¼ã3ã«è¨å®ãã¦ä¸ããã
⣠D1:CKS å
¥åã¯ããã¯é¸æãã³
MCLK
対å¿fs
CKS=0
CKS=1
256fs
384fs
8kHz~48kHz
1024fs
1536fs
8kHz~12kHz
256fs
N/A
80kHz~96kHz
fs:12kHz~8kHzã¯ã1024fs,1536fsãæ¨å¥¨ãã¾ãã
詳ããã¯ã(4)ã·ã¹ãã ã¯ããã¯ãåç
§ãã¦ãã ããã
DFS
ï¾ï½°ï¾ï¾
0
1
2
⤠D0:0ãå
¥åãã¦ä¸ããã
DFS[1]
0
0
1
DFS[0]
0
1
0
注ï¼â ï½â£ã®è¨å®å¤ã®ä¸ç·é¨ã¯åæå¤ã表ãã¾ãã
[MS0295-J-01]
- 20 -
2012/12
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