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AK5388AEQ Datasheet, PDF (18/31 Pages) Asahi Kasei Microsystems – 120dB 24-bit 192kHz 4-Channel ADC | |||
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[AK5388A]
CKS2 pin
L
L
L
L
H
H
H
H
CKS1 pin
L
L
H
H
L
L
H
H
CKS0 pin
L
H
L
H
L
H
L
H
M/S Pin
L
H
L
H
L
H
L
H
L
H
L
H
L
H
L
MCLK Frequency
Quad Speed Mode
128fs (108KHz < fs ⤠216KHz)
Quad Speed Mode
192fs (108KHz < fs ⤠216KHz)
Normal Speed Mode
256fs (8KHz ⤠fs ⤠54KHz)
Double Speed Mode
256fs (54KHz < fs ⤠108KHz)
Auto (8KHz ⤠fs ⤠216KHz)
Double Speed Mode
384fs (54KHz < fs ⤠108KHz)
Normal Speed Mode
384fs (8KHz ⤠fs ⤠54KHz)
Normal Speed Mode
512fs (8KHz < fs ⤠54KHz)
Normal Speed Mode
768fs (8KHz ⤠fs ⤠54KHz)
Table 4. MCLK å¨æ³¢æ°
ã¹ã¬ã¼ãã¢ã¼ã/ãã¹ã¿ã¢ã¼ãå
±ã«ãMCLKå¨æ³¢æ°ãå¤æ´ããå ´åã¯PDN pin = âLâã§ãªã»ãããã¦ä¸ããã
[ä¾] 12.288MHz(@fs=48kHz) at CKS1 pin = CKS0 pin = âLâ.
â ãªã¼ãã£ãªã¤ã³ã¿ãã§ã¼ã¹ ãã©ã¼ããã
12種é¡ã®ãã¼ã¿ãã©ã¼ããããTDM1-0 pin, M/S pin, DIF pin (Table 5)ã§é¸æã§ãã¾ãããªã¼ãã£ãªãã¼ã¿ã®
ãã©ã¼ãããã¯DIF pinã§é¸æå¯è½ã§ããå
¨ã¦ã®ã¢ã¼ãã§ãMSBãã¡ã¼ã¹ãã2âsã³ã³ããªã¡ã³ãã®ãã¼ã¿ã
ã©ã¼ãããã§SDTO1/2ã¯BICKã®ç«ã¡ä¸ããã§åºåããã¾ã
ãã¼ãã«ã¢ã¼ãæãMode1-0ã¯ã¹ã¬ã¼ãã¢ã¼ãã§BICKã¯128fsã¾ã§æå¹ã§ã(fs=48kHz)ãMode2-3ã¯ãã¹ã¿ã¢
ã¼ãã§BICKã¯64fsãåºåãã¾ãã
TDM256 modeã§ã¯ãå
¨ADC(4ãã£ã³ãã«)ã®ã·ãªã¢ã«ãã¼ã¿ã¯SDTO1 pinããåºåããã¾ããSDTO2åºå㯠âLâ
ã«åºå®ã§ãBICKã¯256fsã®å¿
è¦ãããã¾ããã¹ã¬ã¼ãã¢ã¼ãã§ã¯LRCKã®âHâå¹
ã¨âLâå¹
ã¯1/256fs(min)ããã¹
ã¿ã¢ã¼ãã§ã¯LRCKã®âHâå¹
(I2S modeã§ã¯âLâå¹
)ã¯1/8fs(typ)ã§ããTMD256 modeã¯48kHz ã®ã¿ã«å¯¾å¿ãã¦ãã¾
ãã
TDM128 modeã§ã¯ããã¹ã¦ã®ADCã·ãªã¢ã«ãã¼ã¿(4ãã£ã³ãã«)ã¯SDTO1 pinããåºåããã¾ããSDTO2åºå
㯠âLâã«åºå®ã§ãBICKã¯128fsã®å¿
è¦ãããã¾ããã¹ã¬ã¼ãã¢ã¼ãã§ã¯LRCKã®âHâå¹
ã¨âLâå¹
ã¯1/128fs(min)ã
ãã¹ã¿ã¢ã¼ãã§ã¯LRCKã®âHâå¹
(I2S modeã§ã¯âLâå¹
)ã¯1/4fs(typ)ã§ããTMD128 modeã¯192kHz ã¾ã§ã®ãµã³ã
ãªã³ã°ã¬ã¼ãã«å¯¾å¿ãã¾ãã
MS1494-J-02
- 18 -
2013/05
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