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AK4495SEQ Datasheet, PDF (39/58 Pages) Asahi Kasei Microsystems – Quality-oriented Premium 32-Bit 2ch DAC | |||
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[AK4495S]
(2) RSTN-bitãç¨ããåæåã·ã¼ã±ã³ã¹
RSTN bitãâ0âã«ããã¨DZFL/DZFR pinã¯âHâã«ãªãããã®å¾3ï½4/fså¾ã«DACããªã»ããããã¢ããã°åº
åãVCML/Ré»å§ã«ãªãã¾ããåæåæ©è½ã¯ä¸¡æ¹ã®DZFL/DZFR pinã"H"ã«ãªãã¨æå¹ã«ãªãã¾ãã
Figure 17ã«RSTN-bitãç¨ããåæåã·ã¼ã±ã³ã¹ã示ãã¾ãã
RSTN bit
Internal
RSTN bit
3~4/fs (4)
2~3/fs (4)
Internal
State
D/A In
(Digital)
D/A Out
(Analog)
Normal Operation
(3)
GD
DZF
Internal Counter
Reset
Internal
Data Reset
Digital Block Power-down
Normal Operation
forceâ0â (2)
(5)
(5)
GD (3)
SYNC Operation (1)
2/fs(4)
4~5/fs (2)
注ï¼
(1) DZF pinã¯RSTN bitã®ç«ã¡ä¸ããã¨ãã¸ã§ âHâã«ãªããLSIå
é¨ã®RSTN bitã®ç«ã¡ä¸ããã¨ãã¸ã®2/fs
å¾ âLâã«ãªãã¾ãããã®éãåæåæ©è½ã¯æå¹ã«ãªãã¾ãã
(2) å
é¨ã«ã¦ã³ã¿ãªã»ããæã¯4ï½5/fsã®éãå
é¨ãã¼ã¿ãå¼·å¶çã«"0"ã«åºå®ãã¾ãã
(3) ãã£ã¸ã¿ã«å
¥åã«å¯¾ãã¦ã¢ããã°åºåã¯ç¾¤é
延(GD)ãæã¤ãããRSTN bitã«"0"ãæ¸ãè¾¼ãéã¯ç¾¤
é
延æé以ä¸ã®éç¡å
¥åç¶æ
ã«ãã¦ãããã¨ãå§ãã¾ãã
(4) RSTN bitãæ¸ãè¾¼ãã§ããLSIå
é¨ã®RSTNä¿¡å·ãå¤åããã¾ã§ã®ç«ã¡ä¸ããæã«3 ~4/fs ãããã¾
ããã¾ããç«ã¡ä¸ããæã«3 ~ 4/fsããã¾ããåæåæ©è½ã¯RSTN bit=â0âã®æ¸ãè¾¼ã¿ã¨åæã«æå¹ã«
ãªããããLSIå
é¨ã®RSTNä¿¡å·ã"1"ã«å¤åããåã«å
é¨ã«ã¦ã³ã¿ããªã»ãããããå ´åãããã¾
ãã
(5) å
é¨RSTNä¿¡å·ã®ã¨ãã¸(âï¯ ïâ)ãå
é¨ã«ã¦ã³ã¿ãªã»ããæã«ã¯ãªãã¯ãã¤ãºãåºåããã¾ãããã®
ãã¤ãºã¯ãã¼ã¿ã â0âã®å ´åã§ãåºåããã¾ããã¯ãªãã¯ãã¤ãºãåé¡ã«ãªãå ´åã¯ã¢ããã°åºå
ãå¤é¨ã§ãã¥ã¼ããã¦ãã ããã
Figure 17. RSTN-bitãç¨ããåæåã·ã¼ã±ã³ã¹
MS1560-J-01
- 39 -
2013/11
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