參數資料
型號: AKD5394A
廠商: Asahi Kasei Microsystems Co.,Ltd
英文描述: Super High Performance 192kHz 24-Bit ADC
中文描述: 超高性能192kHz的24位ADC
文件頁數: 19/24頁
文件大?。?/td> 174K
代理商: AKD5394A
ASAHI KASEI
[AK5394A]
MS0137-E-01
2002/07
- 19 -
4.
External analog circuit
Figure 9 shows an input buffer circuit example 1. (1
st
order HPF; fc=0.70Hz, 2
nd
order LPF; fc=320kHz, gain=
14.5dB).
The analog signal is able to input through XLR or BNC connectors. (short JP1 and JP2 for BNC input, open JP1 and JP2
for XLR input). The input level of this circuit is +/
12.7Vpp (AK5394A: +/
2.4Vpp Typ.). When using this circuit, analog
characteristics at fs=48kHz is DR=120dB, S/(N+D)=105dB.
4.7k
-
+
-
+
91
3.3k
620
-
+
91
620
Analog In
12.7Vpp
68μ
NJM5534
VA=+5V
VP=
±
15V
4.7k
10
μ
+
10k
10k
0.1
μ
Bias
VA+
2.4Vpp
2.4Vpp
VP+
VP-
Bias
1n
3.3k
1n
Bias
2.2n
68μ
XLR
Vin+
Vin-
J P1
J P2
NJM5534
NJM5534
AK5394 AIN+
AK5394 AIN-
Figure 9. Analog input buffer circuit example 1
Fin
1Hz
10Hz
0.02dB
Frequency Response
Table 6. Frequency Response of HPF
1.77dB
Fin
20kHz
0.00dB
40kHz
0.00dB
80kHz 6.144MHz
0.00dB
51.36dB
Frequency Response
Table 7. Frequency Response of LPF
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