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AK5388AEQ Datasheet, PDF (26/31 Pages) Asahi Kasei Microsystems – 120dB 24-bit 192kHz 4-Channel ADC | |||
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[AK5388A]
4. å¤é¨ã¢ããã°å
¥ååè·¯
Figure 23ã¯AK5388Aã®ã¢ããã°å
¥ååè·¯ä¾1 (1st order HPF; fc=0.70Hz, 2nd order LPF; fc=351kHz, gain=-14.5dB)
ã§ããã·ã³ã°ã«ã¨ã³ãã§å
¥åããå ´åã¯å·®åå
¥åããå ´åã¨æ¯è¼ãã¦å転ãããã¡ãä¸ã¤å¢ãã¾ããFigure 23
ã§ã¯ã·ã³ã°ã«ã¨ã³ãã®å ´åã¯JP1, 2ãã·ã§ã¼ããå·®åã®å ´åã¯JP1, 2ããªã¼ãã³ã«ãã¾ãããã®åè·¯ã®å
¥åã¬
ãã«ã¯+/â15.0Vppã§ã (AK5388A: +/-2.8Vpp Typ.)ããã®å路使ç¨æã®ã¢ããã°ç¹æ§ã¯fs=48kHz ã®æãDR=
120dB, S/(N+D)= 110dBã§ãã
4.7k
4.7k VP+
Analog In
-
15.4Vpp
+
VP-
NJM5534
620
JP1
1n
Vin+ 68µ 3.3k
10
-
+
Bias
NJM5534
VA+
10k
+
11k
10µ
XLR
620
Bias
0.1µ
JP2
VA=+5
VP=±15
68µ
1n
3.3k
-
10
Vin-
+
NJM5534
Bias
Figure 23.Input Buffer example1
2.9Vpp
AK5388A AIN+
15n
AK5388A AIN-
2.9Vpp
fin
1Hz
10Hz
Frequency Response â1.77dB â0.02dB
Table 8. Frequency Response of HPF
fin
20kHz
40kHz
80kHz
Frequency Response 0.00dB
0.00dB 0.00dB
Table 9. Frequency Response of LPF
6.144MHz
â49.68dB
MS1494-J-02
- 26 -
2013/05
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