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AK5701KN_17 Datasheet, PDF (33/64 Pages) Asahi Kasei Microsystems – PLL & MIC-AMP内蔵16-Bit Stereo ADC | |||
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[AK5701]
â ãã£ã¸ã¿ã«HPF
AK5701ã¯DCãªãã»ãããã£ã³ã»ã«ç¨ã®HPFãå
èµãã¦ãã¾ããHPFã®ã«ãããªãå¨æ³¢æ°ã¯HPF1-0 bitsã§é¸æ
ãã¾ããã«ãããªãå¨æ³¢æ°ã¯ãµã³ããªã³ã°å¨æ³¢æ°(fs)ã«æ¯ä¾ãã¾ããåæå¤ã¯3.4Hz (@fs= 44.1kHz)ã§ãã
HPF1 bit
0
0
1
1
HPF0 bit
fs=44.1kHz
fc
fs=22.05kHz
fs=11.025kHz
0
3.4Hz
1.7Hz
0.85Hz
1
6.8Hz
3.4Hz
1.7Hz
0
13.6Hz
6.8Hz
3.4Hz
1
N/A
N/A
N/A
Table 18. ãã£ã¸ã¿ã«HPFã«ãããªãå¨æ³¢æ° (N/A: Not available)
(default)
â ãã¤ã¯ï¼ã©ã¤ã³å
¥åã»ã¬ã¯ã¿
AK5701ã¯å
¥åã»ã¬ã¯ã¿ãå
èµãã¦ãã¾ããMDIF1, MDIF2 bit = â0âã®ã¨ããINL, INR bitã«ãããLIN1/LIN2,
RIN1/RIN2ãããããåãæ¿ãããã¨ãã§ãã¾ããMDIF1, MDIF2 bit = â1âã®ã¨ããLIN1, RIN1, LIN2, RIN2 pin
ã¯ããããLIN+, LINï, RINï, RIN+ pinã¨ãªããå·®åå
¥åãå¯è½ã§ã(Figure 37)ã
MDIF1 bit
0
1
MDIF2 bit
INL bit
INR bit
Lch
Rch
0
0
1
0
LIN1
RIN1
1
LIN1
RIN2
0
LIN2
RIN1
1
LIN2
RIN2
1
0
1
x
LIN1
RIN+/ï
x
N/A
N/A
0
x
0
N/A
N/A
1
LIN+/ï
RIN2
1
x
x
LIN+/ï
RIN+/ï
Table 19. MIC/Line In Path Select (x: Donât care, N/A: Not available)
(default)
AK5701
LIN1/LIN+ pin
RIN1/ LINï pin
INL bit
MDIF1 bit
ADC Lch
RIN2/ RIN+ pin
LIN2/ RINï pin
INR bit
MDIF2 bit
ADC Rch
Figure 36. ãã¤ã¯ï¼ã©ã¤ã³å
¥åã»ã¬ã¯ã¿
MS0404-J-04
- 33 -
2015/10
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