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AK7757VQ Datasheet, PDF (13/24 Pages) Asahi Kasei Microsystems – 24bit 3ch ADC +4ch DAC + Mic Amp 内蔵 Audio DSP | |||
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[AK7757]
ãã£ã¸ã¿ã«ãã£ã«ã¿ç¹æ§
â ADCé¨(ADC1/2)
1. fs=48kHz
(Ta=-40â~85â, AVDD=DVDD=3.0~3.6V, fs=48kHz) Note 21)
Parameter
Symbol
min
typ
max
Unit
ééå (±0.1dB) (Note 22)
PB
0
18.9
kHz
(-0.2dB)
(-3.0dB)
20.0
kHz
23.0
kHz
é»æ¢å
SB
28
kHz
ééåãªããã«
(Note 22)
PR
±0.04
dB
é»æ¢åæ¸è¡°é (Note 23, Note 24)
SA
68
dB
群é
延æª
â³GD
0
μs
群é
延
(Ts=1/fs)
GD
16
Ts
Note 21. åæ¯å¹
ç¹æ§ã®å¨æ³¢æ°ã¯fsï¼ãµã³ããªã³ã°ã¬ã¼ãï¼ã«æ¯ä¾ãã¾ãã
ãã¤ãã¹ãã£ã«ã¿ã®ç¹æ§ã¯å«ã¾ãã¦ãã¾ããã
Note 22. ééåã¯fs=48kHzã®ã¨ããDCãã18.9kHzã§ãã
Note 23. é»æ¢åã¯fs=48kHzã®ã¨ãã28kHzãã3.044MHzã§ãã
Note 24. fs=48kHzã®ã¨ãã¢ããã°å¤èª¿å¨ã¯3.072MHzã§ã¢ããã°å
¥åããµã³ããªã³ã°ãã¾ããå¾ã£ã¦ããµã³ã
ãªã³ã°å¨æ³¢æ°ã®æ´æ°åã®å¸¯å(n x 3.072MHz ±28kHz; n=0, 1, 2, 3・・・)ä¸ã«åå¨ããå
¥åä¿¡å·ã«ã¤ãã¦
ã¯ããã£ã¸ã¿ã«ãã£ã«ã¿ã«ãã£ã¦ã¯æ¸è¡°ããã¾ããã
â DAC1-4
(Ta=-40â~85â; AVDD=DVDD=3.0~3.6V; fs=48kHz; DEM=OFF)
Parameter
Symbol
min
typ
max
Unit
ééå (±0.05dB) (Note 25)
PB
0
21.7
kHz
(-6.0dB)
24
kHz
é»æ¢å
(Note 25)
SB
26.2
kHz
ééåãªããã«
PR
±0.01
dB
é»æ¢åæ¸è¡°é
SA
64
dB
群é
延 (Ts=1/fs) (Note 26)
GD
24
Ts
ãã£ã¸ã¿ã«ãã£ã«ã¿ï¼ã¢ããã°ãã£ã«ã¿
æ¯å¹
ç¹æ§ 20Hzï½20.0kHz
±0.5
dB
Note 25. ééåãé»æ¢åã®å¨æ³¢æ°ã¯ fs ã«æ¯ä¾ããPB=0.4535ï¼fs(@±0.05dB)ãSB=0.5465ï¼fs ã§ãã
Note 26. ãã£ã¸ã¿ã«ãã£ã«ã¿ã«ããæ¼ç®é
延ã§ããã¼ã¿ãå
¥åã¬ã¸ã¹ã¿ã«ã»ããããã¦ããã¢ããã°ä¿¡å·ã
åºåãããã¾ã§ã®æéã§ãã
MS1489-J-01-PB
13
2013/05
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