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AK4495SEQ Datasheet, PDF (40/58 Pages) Asahi Kasei Microsystems – Quality-oriented Premium 32-Bit 2ch DAC | |||
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[AK4495S]
â ã¬ã¸ã¹ã¿ã³ã³ããã¼ã«ã¤ã³ã¿ãã§ã¼ã¹
(1) 3ç·ã·ãªã¢ã«ã³ã³ããã¼ã«ã¢ã¼ã (I2C pin = âLâ)
AK4495Sã®ããã¤ãã®æ©è½ã¯ãã³(ãã©ã¬ã«ã¢ã¼ã)ã¨ã¬ã¸ã¹ã¿(ã·ãªã¢ã«ã¢ã¼ã)ã®ã©ã¡ãã§ãè¨å®ã§ã
ã¾ããããã©ã¬ã«ã¢ã¼ãæã«ã¯ã¬ã¸ã¹ã¿è¨å®ã¯ç¡å¹ãã·ãªã¢ã«ã¢ã¼ãæã«ã¯ãã³è¨å®ã¯ç¡å¹ã«ãªãã¾ãã
PSN pinã®è¨å®ãå¤æ´ããå ´åã¯ãPDN pinã§AK4495Sããªã»ãããã¦ä¸ãããã·ãªã¢ã«ã¢ã¼ãã§ã¯PSN
pinãâLâã«ãããã¨ã«ãã£ã¦ã¤ãã¼ãã«ããã¾ãããã®ã¢ã¼ãã§ã¯3ç·å¼ã·ãªã¢ã«I/F pin: CSN, CCLK,
CDTIã§æ¸ãè¾¼ã¿ãè¡ãã¾ããI/Fä¸ã®ãã¼ã¿ã¯Chip address (2bit, C1/0), Read/Write (1bit, â1âåºå®, Write
only), Register address (MSB first, 5bit)ã¨Control data (MSB first, 8bit)ã§æ§æããã¾ãããã¼ã¿éä¿¡å´ã¯CCLK
ã®âï¯âã§åããããåºåããåä¿¡å´ã¯âïâã§åãè¾¼ã¿ã¾ãããã¼ã¿ã®æ¸ãè¾¼ã¿ã¯CSNã®âïâã§æå¹ã«ãªã
ã¾ããCCLKã®ã¯ããã¯ã¹ãã¼ãã¯5MHz (max)ã§ãã
Function
Parallel Control Mode Serial Control Mode
Audio Format
Y
Y
Auto Setting Mode
-
Y
De-emphasis
Y
Y
SMUTE
Y
Y
DSD Mode
-
Y
EX DF I/F
-
Y
Zero Detection
-
Y
Sharp Roll off filter
Y
Y
Slow Roll off filter
-
Y
Minimum delay Filter
Y
Y
Digital Attenuator
-
Y
Table 26. Function List (Y: Available, -: Not available)
PDN pinãâLâã«ããã¨å
é¨ã¬ã¸ã¹ã¿å¤ãåæåããã¾ããã¾ããã·ãªã¢ã«ã¢ã¼ãã§ã¯RSTN bitã«â0âãæ¸
ãè¾¼ãã¨å
é¨ã¿ã¤ãã³ã°åè·¯ããªã»ããããã¾ããä½ãããã®ã¨ãã¬ã¸ã¹ã¿ã®å
容ã¯åæåããã¾ããã
CSN
CCLK
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
CDTI
C1 C0 R/W A4 A3 A2 A1 A0 D7 D6 D5 D4 D3 D2 D1 D0
C1-C0: Chip Address (C1 bit =CAD1 pin, C0 bit =CAD0 pin)
R/W: READ/WRITE (Fixed to â1â, Write only)
A4-A0: Register Address
D7-D0: Control Data
Figure 18. Control I/F Timing
*3ç·ã·ãªã¢ã«ã¢ã¼ãã§ã¯ãã¼ã¿èªã¿åºãããµãã¼ããã¾ããã
*PDN pin = âLâæãåã³ãã¹ã¿ã¯ããã¯ãä¾çµ¦ããã¦ããªãæã¯ãã³ã³ããã¼ã«ã¬ã¸ã¹ã¿ã¸ã®æ¸ãè¾¼ã¿
ã¯ã§ãã¾ããã
*CSNãâLâæéä¸ã«CCLKã®âïâã15å以ä¸ã¾ãã¯17å以ä¸ã®å ´åã«ã¯ãã¼ã¿ã¯æ¸ãè¾¼ã¾ãã¾ããã
MS1560-J-01
- 40 -
2013/11
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