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AK7757VQ Datasheet, PDF (5/24 Pages) Asahi Kasei Microsystems – 24bit 3ch ADC +4ch DAC + Mic Amp 内蔵 Audio DSP | |||
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N
o.
Pin Name
1 AIN1L
2 INN
3 AIN
INP
4 AIN2LN
5 AIN2LP
6 AIN2RN
7 AIN2RP
8 LFLT
9 DVDD
10 DVSS
11 XTI
12 XTO
13 LRCK1
14 BICK1
15 SDIN1
SDIN2
16
JX0
STO
17
RDY
SDOUTM
CSN
18
CAD1
19
SCLK
SCL
[AK7757]
ãã³/æ©è½
I/O
Function
I ADC1 Lch ã·ã³ã°ã«ã¨ã³ãå
¥å1ãã³
I MIC å·®åå転å
¥åãã³
I MIC ã·ã³ã°ã«ã¨ã³ãå
¥åãã³
I MIC å·®åéå転å
¥åãã³
I ADC1 Lch å·®åå転å
¥å2ãã³
I ADC1 Lch å·®åéå転å
¥å2ãã³
I ADC1 Rch å·®åå転å
¥å2ãã³
I ADC1 Rch å·®åéå転å
¥å2ãã³
PLLç¨R, Cæ¥ç¶ãã³
O p.94 LFLT pin æ¥ç¶ç´ åã®é
ãåç
§ãã ããã
ã¤ãã·ã£ã«ãªã»ããæã®åºåã¯âLâã§ãã
- ãã£ã¸ã¿ã«ã¤ã³ã¿ãã§ã¼ã¹é¨é»æºãã³ 3.0~3.6V
- ã°ã©ã³ããã³ 0V
çºæ¯åè·¯å
¥åãã³
æ°´æ¶æ¯ååã使ç¨ããå ´åã¯ãæ°´æ¶æ¯ååãXTI pinã¨XTO pinã«æ¥ç¶
I
ãã¾ããæ°´æ¶æ¯ååã使ç¨ããªãå ´åã¯ãå¤é¨ã¯ããã¯ãXTI pinã«å
¥
åãã¾ãã
çºæ¯åè·¯åºåãã³
æ°´æ¶æ¯ååã使ç¨ããå ´åãæ°´æ¶æ¯ååãXTI pinã¨XTO pinã«æ¥ç¶ã
O ã¾ããå¤é¨ã¯ããã¯ã使ç¨ããå ´åã¯ãªã¼ãã³ã«ãã¦ãã ãããã¤ã
ã·ã£ã«ãªã»ããæã®åºåã¯Hi-Zã§ã
LRãã£ãã«é¸æå
¥å1ãã³
I
ã¹ã¬ã¼ãåä½æã«LRã¯ããã¯ãå
¥åãã¾ãã
ã·ãªã¢ã«ãããã¯ããã¯å
¥å1ãã³
I
ã¹ã¬ã¼ãåä½æã«BITCLOCK(48fs or 64fs)ãå
¥åãã¾ãã
I ã·ãªã¢ã«ãã¼ã¿å
¥åï¼ãã³
I ã·ãªã¢ã«ãã¼ã¿å
¥åï¼ãã³
å¤é¨æ¡ä»¶ã¸ã£ã³ã0ãã³
I ã³ã³ããã¼ã«ã¬ã¸ã¹ã¿è¨å®JX0E bit = â1âã§ãå¤é¨æ¡ä»¶ã¸ã£ã³ããã³JX0
ã¨ãã¦ä½¿ç¨ãããã¨ãå¯è½ã§ãã
ã¹ãã¼ã¿ã¹åºåãã³
O
ã¤ãã·ã£ã«ãªã»ããæã®åºå㯠âHâã§ãã
ãã¤ã³ã³ã¤ã³ã¿ãã§ã¼ã¹ç¨ãã¼ã¿æ¸ãè¾¼ã¿ã¬ãã£ãã³
O
RDYãåºåãã¾ãã
O å
é¨ã¢ãã¿ç¨ã·ãªã¢ã«ãã¼ã¿åºåãã³
I2CSEL pin = âLâ
ãã¤ã³ã³ã¤ã³ã¿ãã§ã¼ã¹ç¨ãããã»ã¬ã¯ãNãã³
I
ã¤ãã·ã£ã«ãªã»ããä¸åã³ããã¤ã³ã³ã¨ã®ã¤ã³ã¿ãã§ã¼ã¹ãè¡ããªã
å ´åã¯ãCSN pin =âHâã«ãã¦ãã ããã
I I2CSEL pin = âHâ I2Cãã¹ã¢ãã¬ã¹1ãã³
I2CSEL pin = âLâ
I ãã¤ã³ã³ã¤ã³ã¿ãã§ã¼ã¹ç¨ã·ãªã¢ã«ãã¼ã¿ã¯ããã¯ãã³
ã¯ããã¯ãå
¥åããªãæã¯ãSCLK pin = âHâã«ãã¦ãã ãã
I I2CSEL pin= âHâ
I2Cã¤ã³ã¿ãã§ã¼ã¹ç¨ãã¼ã¿ã¯ããã¯ãã³
MS1489-J-01-PB
5
2013/05
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