|
AK5701KN_17 Datasheet, PDF (34/64 Pages) Asahi Kasei Microsystems – PLL & MIC-AMP内蔵16-Bit Stereo ADC | |||
|
◁ |
[AK5701]
MPWR pin
1k
IN1ï pin
IN1+ pin
1k
AK5701
MIC-Amp
Figure 37. å·®åãã¤ã¯å
¥åã®åè·¯ä¾(MDIF1/2 bits = â1â)
â ãã¤ã¯ç¨ã²ã¤ã³ã¢ã³ã
AK5701ã¯ãã¤ã¯ç¨ã²ã¤ã³ã¢ã³ããå
èµãã¦ãã¾ããMGAIN1-0 bitã«ããã²ã¤ã³ãè¨å®ãããã¨ãã§ãã¾ã
(Table 20)ãå
¥åã¤ã³ãã¼ãã³ã¹ã¯MGAIN1-0 bits = â00âã®ã¨ãtyp. 60kïãMGAIN1-0 bits = â01â, â10âã®ã¨ãtyp.
30kïã§ãã
MGAIN1 bit MGAIN0 bit Input Gain
0
0
0dB
0
1
+15dB
(default)
1
0
+30dB
1
1
N/A
Table 20. ãã¤ã¯å
¥åã²ã¤ã³ (N/A: Not available)
â ãã¤ã¯ãã¯ã¼
PMMP bit = â1âã®ã¨ããMPWR pinãããã¤ã¯ç¨ã®é»æºãä¾çµ¦ãããã¨ãã§ãã¾ããåºåé»å§ã¯(0.75 x AVDD)V
(typ)ã«æ¯ä¾ããè² è·æµæã¯ãmin. 0.5kïã§ããã¹ãã¬ãªãã¤ã¯2系統ã®å ´åã¯åãã£ãã« min. 2kïã§ããMPWR
pinã«ã³ã³ãã³ãµã¯æ¥ç¶ããªãã§ä¸ããã(Figure 38)
PMMP bit
MPWR pin
0
Hi-Z
1
Output
Table 21. ãã¤ã¯ãã¯ã¼
(default)
MIC Power
MPWR pin
MS0404-J-04
LIN1 pin
RIN1 pin
LIN2 pin
RIN2 pin
Figure 38. MIC Block Circuit
Microphone
Microphone
Microphone
Microphone
- 34 -
2015/10
|
▷ |