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AK4414EQ Datasheet, PDF (38/51 Pages) Asahi Kasei Microsystems – High Performance 120dB 32-Bit 4ch DAC | |||
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[AK4414]
â ã¬ã¸ã¹ã¿ã³ã³ããã¼ã«ã¤ã³ã¿ãã§ã¼ã¹
AK4414ã®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§ãã¾ã
ãããã©ã¬ã«ã¢ã¼ãæã«ã¯ã¬ã¸ã¹ã¿è¨å®ã¯ç¡å¹ãã·ãªã¢ã«ã¢ã¼ãæã§ã¯ãã³ãåå®ç¾©ããªãå ´åããã³è¨å®
ã¨ã®ORãã¨ãã¾ããPSN pinã®è¨å®ãå¤æ´ããå ´åã¯ãPDN pinã§AK4414ããªã»ãããã¦ä¸ãããã·ãªã¢ã«
ã¢ã¼ãã§ã¯PSN pinãâLâã«ãããã¨ã«ãã£ã¦ã¤ãã¼ãã«ããã¾ãããã®ã¢ã¼ãã§ã¯ãã³ã¯å
¨ã¦ âLâã«è¨å®ãã¦
ãã ããã3ç·å¼ã·ãªã¢ã«I/F CSN, CCLK, CDTI pin ãéãã¦å
é¨ã¬ã¸ã¹ã¿ã®æ¸ãè¾¼ã¿ãè¡ãã¾ããI/Fä¸ã®ã
ã¼ã¿ã¯Chip address (2bit, C1/0), Read/Write (1bit, â1âåºå®), Register address (MSB first, 5-bits)ã¨Control data (MSB
first, 8-bits)ã§æ§æããã¾ãããã¼ã¿éä¿¡å´ã¯CCLKã®âââã§åããããåºåããåä¿¡å´ã¯âââã§åãè¾¼ã¿ã¾ãã
ãã¼ã¿ã®æ¸ãè¾¼ã¿ã¯CSNã®âââã§æå¹ã«ãªãã¾ããCCLKã®ã¯ããã¯ã¹ãã¼ãã¯5MHz (max)ã§ãã
Function
Parallel mode Serial mode
Auto Setting Mode
Y
Y
Manual Setting Mode
Y
Y
Audio Format
Y
Y
De-emphasis
Y
Y
SMUTE
Y
Y
TDM Mode
Y (4-ch only)
Y
Digital Filter Option
Y
Y
DSD Mode
-
Y
Zero Detection
-
Y
Digital Attenuator
-
Y
Table 25. ãã¡ã³ã¯ã·ã§ã³ãªã¹ã1 (Y: Available, -: Not available)
PDN pinãâLâã«ããã¨å
é¨ã¬ã¸ã¹ã¿å¤ãåæåããã¾ããã¾ããã·ãªã¢ã«ã¢ã¼ãã§ã¯RSTN bitã«â0âãæ¸ãè¾¼
ãã¨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 23. Control I/F Timing
*AK4414ã¯ãã¼ã¿èªã¿åºãããµãã¼ããã¾ããã
*PDN pin = âLâ æãåã³ãã¹ã¿ã¯ããã¯ãä¾çµ¦ããã¦ããªãæã¯ãã³ã³ããã¼ã«ã¬ã¸ã¹ã¿ã¸ã®æ¸ãè¾¼ã¿ã¯ã§
ãã¾ããã
*CSNãâLâæéä¸ã«CCLKã®âââã15å以ä¸ã¾ãã¯17å以ä¸ã®å ´åã«ã¯ãã¼ã¿ã¯æ¸ãè¾¼ã¾ãã¾ããã
MS1476-J-00
- 38 -
2013/01
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