LTC1065M データシートの表示（PDF） - Linear Technology
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LTC1065M Datasheet PDF : 16 Pages
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APPLICATI S I FOR ATIO
Table 4. Aliasing Data
INPUT FREQUENCY
0.9995 fCLK
0.995 fCLK
0.99 fCLK
0.9875 fCLK
0.985 fCLK
0.9825 fCLK
0.98 fCLK
0.975 fCLK
0.97 fCLK
0.965 fCLK
0.96 fCLK
0.955 fCLK
0.95 fCLK
0.94 fCLK
0.93 fCLK
0.9 fCLK
OUTPUT FREQUENCY
0.0005 fCLK
0.005 fCLK
0.01 fCLK
0.0125 fCLK
0.015 fCLK
0.0175 fCLK
0.02 fCLK
0.025 fCLK
0.03 fCLK
0.035 fCLK
0.04 fCLK
0.045 fCLK
0.05 fCLK
0.06 fCLK
0.07 fCLK
0.1 fCLK
OUTPUT AMPLITUDE
REFERENCED TO
INPUT SIGNAL
– 0.01 dB
– 0.98 dB
– 3.13 dB
– 4.79 dB
– 7.21 dB
– 10.43 dB
– 14.14 dB
– 21.84 dB
– 28.98 dB
– 35.31 dB
– 40.94 dB
– 45.96 dB
– 50.46 dB
– 58.29 dB
– 64.90 dB
– 80.20 dB
LTC1065
An input RC can be used to attenuate incoming signals
close to the filter clock frequency (Figure 10). A Bessel
passband response will be maintained if the value of the
input resistor follows Table 1.
R
VIN
V–
1
C
2
3
0.1µF 4
LTC1065
8
7
VOUT
6
5 fCLK
fCLK
20
≤
1
2πRC
≤
fCLK
10
V+
0.1µF
1065 F10
Figure 10. Adding an Input Anti-Aliasing RC
1065fb
11
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