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AK5730VQ_17 Datasheet, PDF (25/50 Pages) Asahi Kasei Microsystems – 4-Channel Differential Audio ADC for Line & Mic Inputs | |||
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[AK5730]
â ãã£ã¸ã¿ã«ããªã¥ã¼ã æ©è½
AK5730ã¯ãã£ãã«ç¬ç«ãã£ã¸ã¿ã«ããªã¥ã¼ã (256ã¬ãã«, 0.5dBã¹ããã)ãå
èµãã¦ãã¾ããæ¸è¡°éã¯ã¬ã¸ã¹
ã¿ã®ATT7-0 bitã§ããããè¨å®ãã¾ã(Table 7)ã
ATT7-0
00H
01H
:
18H
19H
1AH
FEH
FFH
Attenuation Level
+12dB
+11.5dB
:
0dB(default)
-0.5dB
-1.0dB
:
-115.0dB
MUTE (-â)
Table 7. ãã£ã¸ã¿ã«ããªã¥ã¼ã ã®æ¸è¡°é
ãã£ã¸ã¿ã«ããªã¥ã¼ã ã®é·ç§»æéã¯ATS1-0 bitã§è¨å®ãã¾ã(Table 8)ãATT7-0ã®è¨å®å¤éã®é·ç§»ã¯ã½ããé·ç§»
ã§ãããããã£ã¦ãé·ç§»ä¸ã«ã¹ã¤ããã³ã°ãã¤ãºã¯çºçãã¾ããã
Mode
0
1
2
3
ATS1
0
0
1
1
ATS0
0
1
0
1
ATT speed
3712/fs
928/fs
1856/fs
7424/fs
(default)
Table 8. ãã£ã¸ã¿ã«ããªã¥ã¼ã ã®é·ç§»æé
Mode0ã®å ´åãATTè¨å®éã®é·ç§»ã¯3712ã¬ãã«ã§ã½ããé·ç§»ãã¾ãã00H(+12dB)ããFFH(MUTE)ã¾ã§ã«ã¯
3712/fs (77.3ms@fs=48kHz)ãããã¾ããPDN pinã âLâ ã«ããã¨ãATT7-0 bitã¯18Hã«åæåããã¾ããATT7-0
bitã¯RSTN bitã â0â ã«ããã¨ä¸æ¦18Hã«ãªããRSTN bitã â1â ã«æ»ãã¨è¨å®å¤ã«æ»ã£ã¦ããã¾ãã
MS1577-J-03
- 25 -
2015/11
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