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| AK5730VQ_17 Datasheet, PDF (24/50 Pages) Asahi Kasei Microsystems – 4-Channel Differential Audio ADC for Line & Mic Inputs | |||
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[AK5730]
â TDMã«ã¹ã±ã¼ãã¢ã¼ã
TDM256 mode
AK5730ã¯TDM256 modeæã«æ大2å°ã¾ã§ã®ã«ã¹ã±ã¼ãæ¥ç¶ã«å¯¾å¿ãã¾ãããã®æãããã¤ã¹#1ã®SDTO pinã¯ããã¤ã¹
#2ã®TDMI pinã«æ¥ç¶ããã¾ã (Figure 20)ãããã¤ã¹#2ã®SDTO pinãã8ãã£ã³ãã«ã®TDMãã¼ã¿ãåºåã§ãã¾ã
(Figure 17, Figure 19)ã
256fs or 512fs
48kHz
256fs
AK5730 #1
MCLKI
TDMI
LRCK
BICK SDTO1
GND
256fs
48kHz
256fs
AK5730 #2
MCLKI
TDMI
LRCK
BICK SDTO1
(1) Slave Mode
AK5730 #1
MCLKI
TDMI
LRCK
BICK SDTO1
8ch TDM
GND
48kHz
256fs
AK5730 #2
MCLKI
TDMI
LRCK
BICK SDTO1
8ch TDM
(2) Master Mode
Figure 20. TDMã«ã¹ã±ã¼ãæ¥ç¶å³ (TDM256 mode)
â ã·ã¹ãã ãªã»ãã
é»æºæå
¥æãä¸åº¦PDN pinãâLâã«ãã¦ãªã»ãããã¦ä¸ãããVREFãªã©ã®åºæºé»å§ã®ãã¯ã¼ãã¦ã³ã¯MCLKIã§
解é¤ããããã®å¾LRCKã®ç«ã¡ä¸ããã«åæãã¦å
é¨ã®ã¿ã¤ãã³ã°ãåä½ãã¾ããã¹ã¬ã¼ãã¢ã¼ãæã«ã¯ã
MCLK, BICKã¨LRCKãå
¥åãããã¾ã§ãã¯ã¼ãã¦ã³ã¢ã¼ãã§ãããã¹ã¿ã¢ã¼ãæã«ã¯ããã¯ã¼ãã¦ã³ã¯MCLKI
ãå
¥åãããã¨è§£é¤ããã¾ããåã¯ããã¯å
¥åå¾ãMic Bias Voltage(MBS3-0 bit)ãè¨å®ãã¦ããRSTN bitãâHâ
ã«ãã¦ä¸ããã
MS1577-J-03
- 24 -
2015/11
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