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AK4591VQ Datasheet, PDF (19/41 Pages) Asahi Kasei Microsystems – 入力セレクタ付24bit 4ch ADC + 24bit 6ch DAC | |||
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[AK4591]
1) CONT0:ãµã³ããªã³ã°å¨æ³¢æ°ããã³ADCï½²ï¾ï¾ï½°ï¾ï½ªï½°ï½½é¸æ
ã·ã¹ãã ãªã»ããæï¼ S_RESET ï¼"L"ï¼ã®ã¿æ¸è¾¼ã¿ãå¯è½ã§ãã
Command
Name
D7
D6
D5
D4
D3
D2
D1
D0 Default
Code
Write Read
20h 30h CONT0 DFS[1] DFS[0] DIFS A2IF[1] A2IF[0] A1IF[1] A1IF[0] 0 0000 0000
â D7,D6:DFS[1:0] ï½»ï¾ï¾ï¾ï¾ï¾ï½¸ï¾å¨æ³¢æ°é¸æ
DFS DFS[1] DFS[0] 対å¿fs
CKS(CONT1:D1)
MCLK
ï¾ï½°ï¾ï¾
CKS=0
CKS=1
0
0
1
0
0
256fs(fs=48kHz~8kHz)
1
1024fs(fs=12kHz~8kHz)
256fs
1024fs
384fs
1536fs
2
1
0
256fs(fs=96kHz)
256fs
N/A
3
1
1
N/A TEST
注ï¼fs:12kHz~8kHzã¯ãDFSã¢ã¼ã1ãæ¨å¥¨ãã¾ãã(256fs,384fsã§ããã¯ããã¯ãä¾çµ¦ã§ããªã
ãããªç¹æ®ãªå ´åãé¤ãã¦DFSã¢ã¼ã1ã«è¨å®ãã¦ãã ããã)
â¡ D5:DIFS オーï¾ï¾ï½¨ï½µï½²ï¾ï¾ï½°ï¾ï½ªï½°ï½½é¸æ
0: AKMä»æ§
BITCLK48fs,BITCLK32fsã®å ´å0ã«è¨å®ãã¦ä¸ããã
1: I2Säºæ(24bit)
(ãã®å ´åãオーï¾ï¾ï½¨ï½µï½²ï¾ï¾ï½°ï¾ï½ªï½°ï½½ãã¹ã¦ã®å
¥åºåï¾ï¾ï¾ãI2S対å¿ã¨ãªãã¾ãããã ããSDINãé¤ã)
⢠D4,D3:A2IF[1:0] ADC2 åºåã¢ã¼ãé¸æ
A2IFï¾ï½°ï¾ï¾ A2IF[1] A2IF[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¨ãªãã¾ãããA2IFï¾ï½°ï¾ï¾0ã«è¨å®ãã¦ä¸ããã
BITCLK48fs,BITCLK32fsã®å ´åA2IFã¢ã¼ã0ã«è¨å®ãã¦ä¸ããã
⣠D2,D1:A1IF[1:0] ADC1 åºåã¢ã¼ãé¸æ
A1IFï¾ï½°ï¾ï¾ A1IF[1] A1IF[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¨ãªãã¾ãããA1IFï¾ï½°ï¾ï¾0ã«è¨å®ãã¦ä¸ããã
BITCLK48fs,BITCLK32fsã®å ´åA1IFã¢ã¼ã0ã«è¨å®ãã¦ä¸ããã
⤠D0:0ãå
¥åãã¦ä¸ããã
注ï¼â ï½â£ã®è¨å®å¤ã®ä¸ç·é¨ã¯åæå¤ã表ãã¾ãã
[MS0295-J-01]
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2012/12
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