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AK4414EQ Datasheet, PDF (35/51 Pages) Asahi Kasei Microsystems – High Performance 120dB 32-Bit 4ch DAC | |||
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[AK4414]
â ãã¯ã¼ON/OFF ã¿ã¤ãã³ã°
AK4414ã¯PDN pinãâLâã«ãããã¨ã§ã¬ã¸ã¹ã¿ããªã»ãããããã¯ã¼ãã¦ã³ã¢ã¼ãã«å
¥ãã¾ããã¢ããã°åºå
ã¯ããã¼ãã£ã³ã°(Hi-Z)ã§ãã PDNã®ã¨ãã¸ã§ã¯ãªãã¯ãã¤ãºãèµ·ããã¾ããã¯ãªãã¯ãã¤ãºãã·ã¹ãã ã«
å½±é¿ããå ´åã¯ãã¢ããã°åºåãå¤é¨ã§ãã¥ã¼ããã¦ãã ããã
RSTN bit â0âã§DACé¨åããªã»ãããããã¨ãåºæ¥ã¾ãããã®å ´åã¬ã¸ã¹ã¿ã¯åæåããããã¢ããã°åºåã¯
VCM1/2ã«ãªãã¾ããRSTNã®ã¨ãã¸ã§èµ·ããã¯ãªãã¯ãã¤ãºããã·ã¹ãã ã«å½±é¿ããå ´åã¯ãã¢ããã°åºå
ãå¤é¨ã§ãã¥ã¼ããã¦ãã ããã
Power
PDN pin
(1)
Internal
State
Normal Operation
DAC In
(Digital)
â0âdata
DAC Out
(Analog)
(3)
(4)
Clock In
Donât care
MCLK,LRCK,BICK
DZF1/DZF2
External
Mute
(6)
Mute ON
(2)
GD
Reset
â0âdata
GD
(4)
(3)
(5)
Donât care
(7)
Mute ON
Notes:
(1) é»æºæå
¥å¾PDN pinã âLâããã¹ã¿ã¼ãã150ns以ä¸ã®éãPDN pinãâLâã«ãã¦ä¸ããã
(2) ãã£ã¸ã¿ã«å
¥åã«å¯¾ããã¢ããã°åºåã¯ç¾¤é
延(GD)ãæã¡ã¾ãã
(3) ãã¯ã¼ãã¦ã³æãã¢ããã°åºåã¯Hi-Zã§ãã
(4) PDNä¿¡å·ã®ã¨ãã¸(ââ ââ)ã§ã¯ãªãã¯ãã¤ãºãåºåããã¾ãããã®ãã¤ãºã¯ãã¼ã¿ãâ0âã®å ´åã§ãåºå
ããã¾ãã
(5) ãã¯ã¼ãã¦ã³ç¶æ
(PDN pin = âLâ)ã§ã¯åã¯ããã¯å
¥å(MCLK, BICK, LRCK)ãæ¢ãããã¨ãã§ãã¾ãã
(6) ã¯ãªãã¯ãã¤ãº(3)ãåé¡ã«ãªãå ´åã¯ã¢ããã°åºåãå¤é¨ã§ãã¥ã¼ããã¦ä¸ãããã¿ã¤ãã³ã°ä¾ã示
ãã¾ãã
(7) ãã¯ã¼ãã¦ã³ç¶æ
(PDN pin = âLâ)ã§ã¯ãDZF1/2 pinã¯âLâã«ãªãã¾ãã
Figure 20. Power-down/up Sequence Example
MS1476-J-00
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2013/01
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