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AK5701KN_17 Datasheet, PDF (54/64 Pages) Asahi Kasei Microsystems – PLL & MIC-AMP内蔵16-Bit Stereo ADC | |||
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5. å¤é¨ã¯ããã¯ã¢ã¼ãã§ä½¿ç¨ããå ´å(ãã¹ã¿ã¢ã¼ã)
[AK5701]
Power Supply
PDN pin
PMVCM bit
(Addr:10H, D2)
MCKI pin
(1)
(2) (3)
M/S bit
(Addr:11H, D1)
TE3-0 bits
(Addr:1DH, D7-4)
TMASTER bit
(Addr:1EH, D1)
"1010"
BCLK pin
LRCK pin
Input
Example:
Audio I/F Format: I2S
BCLK frequency at Master Mode: 64fs
Input Master Clock Select: 256fs
Sampling Frequency: 44.1kHz
(1) Power Supply & PDN pin = âLâ ï âHâ
"0101"
Output
(2)Addr:11H, Data:26H
Addr:14H, Data:23H
Addr:15H, Data:2FH
Addr:1DH, Data:50H
Addr:1EH, Data:02H
BCLK and LRCK output
(3)Addr:10H, Data:04H
Figure 49. Clock Set Up Sequence (5)
<æé ä¾>
(1) é»æºç«ã¡ä¸ãå¾ãPDN pin âLâ ï âHâ
ãã®åºéã¯AK5701ã®ãªã»ããã®ããã150ns以ä¸ã® âLâåºéãå¿
è¦ã§ãã
(2) ãã®åºéã«ãDIF1-0, FS1-0, BCKO1-0, M/S, TE3-0, TMASTER bitsã®è¨å®ã次ã®é çªã®ã¨ããè¡ã£ã¦ä¸
ããã
(2a) M/S bit = â1â, FS3-0, BCKO1-0ã®è¨å®ã
(2b) DIF1-0ã®è¨å®ã
(2c) TE3-0 bits = â0101â
(2d) TMASTER bit = â1â: BCLK, LRCKåºåãéå§ãã¾ãã
(3) VCOMã®ãã¯ã¼ã¢ããï¼ PMVCM bit = â0â ï â1â
åãããã¯ãç«ã¡ä¸ããåã«æåã«VCOMãç«ã¡ä¸ãã¦ä¸ããã
EXT Master Modeããã»ãã®ã¯ããã¯ã¢ã¼ãã¸å¤æ´ããå ´åã¯ãPDN pin = âLâ ï âHâã¨ããããTE3-0 bits =
â1010âãæ¸ãè¾¼ãã§ãããTable 1ã«å¾ã£ã¦ã¬ã¸ã¹ã¿è¨å®ãè¡ã£ã¦ä¸ããã
MS0404-J-04
- 54 -
2015/10
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