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AK5701KN_17 Datasheet, PDF (27/64 Pages) Asahi Kasei Microsystems – PLL & MIC-AMP内蔵16-Bit Stereo ADC | |||
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[AK5701]
â EXT Master Mode (PMPLL bit = â0â, M/S bit = â1â, TE3-0 bits = â0101â, TMASTER bit = â1â)
Figure 49ã®æé ä¾ã«å¾ã£ã¦ã¬ã¸ã¹ã¿ãè¨å®ãããã¨ã§ãå¤é¨ã¯ããã¯ãã¹ã¿ã¢ã¼ã(EXT Master Mode)ã§åä½
ããMCKI pinããPLLãä»ããã«ç´æ¥ãADCã«ãã¹ã¿ã¯ããã¯ãå
¥åã§ãã¾ããå¿
è¦ãªã¯ããã¯ã¯MCKI
(256fs, 512fs or 1024fs)ã§ããMCKIã®å
¥åå¨æ³¢æ°ã¯FS1-0 bitã«ããé¸æãããã¨ãå¯è½ã§ã(Table 12)ã
Mode
0
1
2
3
FS3-2 bits
FS1 bit FS0 bit
MCKI Input
Frequency
Sampling Frequency
Range
x
0
0
256fs
7.35kHz ï¾ 48kHz
x
0
1
1024fs
7.35kHz ï¾ 13kHz
x
1
0
512fs
7.35kHz ï¾ 26kHz
x
1
1
256fs
7.35kHz ï¾ 48kHz
Table 12. EXT Master Modeæã®MCKIå¨æ³¢æ°ã®è¨å® (x: Donât care)
(default)
ADCãåä½ä¸(PMADL bit = â1â or PMADR bit = â1â)ã¯MCKIãæ¢ãã¦ã¯ããã¾ãããMCKIãä¾çµ¦ãããªãå ´
åãå
é¨ã«ãã¤ãããã¯ãªãã¸ãã¯ã使ç¨ãã¦ãããããéé»æµãæµããåä½ãç°å¸¸ã«ãªãå¯è½æ§ãããã¾
ããMCKIãæ¢ããå ´åã¯ãã¯ã¼ãã¦ã³ç¶æ
(PMADL=PMADR bits = â0â)ã«ãã¦ãã ããã
AK5701
MCKO
MCKI
BCLK
LRCK
SDTO
256fs, 512fs or 1024fs
DSP or ïP
MCLK
32fs or 64fs
BCLK
1fs
LRCK
SDTI
Figure 23. EXT Master Mode
BCKO1 bit BCKO0 bit BCLKåºåå¨æ³¢æ°
0
0
N/A
0
1
32fs
(default)
1
0
64fs
1
1
N/A
Table 13. BCLK Output Frequency at Master Mode (N/A: Not available)
MS0404-J-04
- 27 -
2015/10
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