參數(shù)資料
型號(hào): AK5388
廠商: Asahi Kasei Microsystems Co.,Ltd
英文描述: 120dB 24-bit 192kHz 4-Channel ADC
中文描述: 120dB的24位192kHz的4通道ADC
文件頁(yè)數(shù): 25/27頁(yè)
文件大小: 384K
代理商: AK5388
ASAHI KASEI
[AK5388]
4. External Analog Circuit Examples
Figure 19
shows an input buffer circuit example 1. (1 order HPF; fc=0.70Hz, 2 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 +/-TBDVpp (AK5388: +/-2.9Vpp Typ.). When using this circuit, analog
characteristics at fs=48kHz is DR=120dB, S/(N+D)=TBDdB.
4.7k
4.7k
-
+
-
+
91
3.3k
620
-
+
91
620
Analog In
TBDVp
68μ
NJM5534
VA=+5V
VP=
±
15V
10
μ
+
10k
10k
0.1
μ
Bias
VA+
2.9Vpp
2.9Vpp
VP+
VP-
Bias
1n
3.3k
1n
Bias
2.2n
68μ
XLR
Vin+
Vin-
J P1
J P2
NJM5534
NJM5534
AK5388 AIN+
AK5388 AIN-
Figure 19.Input Buffer example1
fin
1Hz
1.56dB
10Hz
0.02dB
Frequency Response
Table 7. Frequency Response of HPF
fin
20kHz
0.005dB
40kHz
0.02dB
6.144MHz
15.6dB
Frequency Response
Table 8. Frequency Response of LPF
Rev. 0.3
2007/10
- 25 -
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