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AK5730VQ_17 Datasheet, PDF (21/50 Pages) Asahi Kasei Microsystems – 4-Channel Differential Audio ADC for Line & Mic Inputs | |||
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[AK5730]
â ãã¹ã¿ã¢ã¼ãã¨ã¹ã¬ã¼ãã¢ã¼ãã®åãæ¿ã
ãã¹ã¿ã¢ã¼ãã¨ã¹ã¬ã¼ãã¢ã¼ãã®åãæ¿ãã¯MSN pinã§è¡ãã¾ããâHâã§ãã¹ã¿ã¢ã¼ããâLâã§ã¹ã¬ã¼ãã¢ã¼
ãã§ãããã¹ã¿ã¢ã¼ãã§ä½¿ç¨ããå ´å (MSN pin = âHâ)ãLRCK pin 㨠BICK pin ã¯åºåãã³ã«ãªãã¾ããã¹ã¬
ã¼ãã¢ã¼ãã®æ㯠(MSN pin = âLâ)ãLRCK pin 㨠BICK pin ã¯å
¥åãã³ã«ãªãã¾ãã
BICKããå
é¨ãã¹ã¿ã¯ããã¯MCLKãçæããPLL modeãPLL1-0 bits ã§è¨å®ãã¾ãã
PDN
L
L
H
H
H
H
H
MSN pin
L
H
L
L
L
L
H
PLL1 bit
*
*
0
0
1
1
*
PLL0 bit
*
*
0
1
0
1
*
LRCK pin
Input
âLâ Output
Input
Input
Input
Input
Output
Table 4. LRCK pin 㨠BICK pin
BICK pin
Input
âLâ Output
Input (PLL off)
64fs Input (PLL mode)
256fs Input (PLL mode)
512fs Input (PLL mode)
Output
(*: Donât Care)
â ãã£ã¸ã¿ã« ãã¤ãã¹ãã£ã«ã¿
AK5730ã¯DCãªãã»ãããã£ã³ã»ã«ç¨ã®HPFãå
èµãã¦ãã¾ãã HPFã®ã«ãããªãå¨æ³¢æ°ã¯ãfs=48kHzæ
1.0Hzã«ãªã£ã¦ãããå¨æ³¢æ°å¿çã¯fsã«æ¯ä¾ãã¾ãããã¤ãã¹ãã£ã«ã¿ã¯HPE4-1 bitsã§å¶å¾¡ããã¾ãã
HPE1 bit
L
H
HPF
ADC1 HPF off
ADC1 HPF on
(default)
HPE2 bit
L
H
HPF
ADC2 HPF off
ADC2 HPF on
(default)
HPE3 bit
L
H
HPF
ADC3 HPF off
ADC3 HPF on
(default)
HPE4 bit
L
H
HPF
ADC4 HPF off
ADC4 HPF on
(default)
Table 5. HPF åä½è¨å®
MS1577-J-03
- 21 -
2015/11
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