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AK7757VQ Datasheet, PDF (6/24 Pages) Asahi Kasei Microsystems – 24bit 3ch ADC +4ch DAC + Mic Amp 内蔵 Audio DSP | |||
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SI
20
CAD0
SO
21
SDA
22 CLKO
23 LRCKO
24 BICKO
25 SDOUT1
RDY
26 SDOUT2
JX3
EXPDRN
27 SDOUT3
GPO
28 DVDD18
LRCK2
29
JX1
BICK2
30
JX2
31 IRSTN
32 I2CSEL
[AK7757]
I2CSEL pin = âLâ
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I I2CSEL pin = âHâ I2Cãã¹ã¢ãã¬ã¹0ãã³
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O
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I2CSEL pin= âHâ
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åºåãã³ã¨ãã¦ä½¿ç¨ããå ´åã¯ã³ã³ããã¼ã«ã¬ã¸ã¹ã¿è¨å®
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SDOUT2IOE bit= â1â, JX3E bit= â0âã«è¨å®ãã¦ãã ããã
åºåãã³ã¨ãã¦ä½¿ç¨ããå ´åã¯ãã«ãã¦ã³æµæãæ¥ç¶ãã¦ãã ããã
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O
DOUT2IOE bit= â1â, JX3E bit = â0âã«è¨å®ãã¦ãã ããã
åºåãã³ã¨ãã¦ä½¿ç¨ããå ´åã¯ãã«ãã¦ã³æµæãæ¥ç¶ãã¦ãã ããã
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ã³ã³ããã¼ã«ã¬ã¸ã¹ã¿è¨å®JX3E bit = â1âã§ãå¤é¨æ¡ä»¶ã¸ã£ã³ããã³JX3
I
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ã¤ãã·ã£ã«ãªã»ãã解é¤æã¯JX3 pin (å
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O
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O å¤é¨ç´ åå¶å¾¡ç¨ãæ±ç¨åºåãã³
- ãã£ã¸ã¿ã«é¨é»æºãã³ 1.7~1.9V
LRãã£ãã«é¸æå
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I
ã¹ã¬ã¼ãåä½æã«LRã¯ããã¯ãå
¥åãã¾ãã
å¤é¨æ¡ä»¶ã¸ã£ã³ã1ãã³
I ã³ã³ããã¼ã«ã¬ã¸ã¹ã¿è¨å®JX1E bit = â1âã§ãå¤é¨æ¡ä»¶ã¸ã£ã³ããã³JX1
ã¨ãã¦ä½¿ç¨ãããã¨ãå¯è½ã§ãã
I
ã·ãªã¢ã«ãããã¯ããã¯å
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å¤é¨æ¡ä»¶ã¸ã£ã³ã2ãã³
I ã³ã³ããã¼ã«ã¬ã¸ã¹ã¿è¨å®JX2E bit = â1âã§ãå¤é¨æ¡ä»¶ã¸ã£ã³ããã³JX2
ã¨ãã¦ä½¿ç¨ãããã¨ãå¯è½ã§ãã
ã¤ãã·ã£ã«ãªã»ããNãã³ (åæåç¨)
I AK7757ã®åæåã«ä½¿ç¨ãã¾ãã
é»æºç«ã¡ä¸ãæ㯠âLâã«ãã¦ãã ãã
I2CBUSé¸æãã³
I2CSEL pin =âLâ: 4ç·å¼ã®ãã¤ã³ã³ã¤ã³ã¿ãã§ã¼ã¹ã§ãã
I
I2CSEL pin =âHâ: I2Cãã¹ SCL, SDAã使ç¨ããã¨ãã«ç¨ãã¾ãã
I2CSELã¯âL(DVSS)â, âH(DVDD)âåºå®ã§ä½¿ç¨ãã¦ãã ããã
MS1489-J-01-PB
6
2013/05
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