参数资料
型号: LT1568
厂商: Linear Technology Corporation
英文描述: Very Low Noise, High Frequency Active RC, Filter Building Block
中文描述: 极低噪声,高频有源RC,滤波器积木
文件页数: 13/16页
文件大小: 271K
代理商: LT1568
LT1568
13
1568f
Table 2. Resistor Values in Ohms, Dual 2nd Order Lowpass
Chebyshev,
±
0.25dB Passband Ripple, Gain = 1, R11 = R12,
R21 = R22, R31 = R32
f
CUTOFF
(MHz)
R11, R21
1
976
2
475
3
316
4
226
5
178
6
143
7
121
R31
825
412
274
205
165
137
118
FREQUENCY (MHz)
0.1
–50
G
–40
–30
–20
–10
1
10
20
1568 TA09
–60
–70
–80
–90
0
10
Amplitude Response 2nd Order Lowpass Chebyshev,
±
0.25dB Passband Ripple, f
CUTOFF
= 1MHz
Transient Response 2nd Order Lowpass Chebyshev,
±
0.25dB Passband Ripple, f
CUTOFF
= 1MHz
INPUT
500mV/DIV
OUTPUT
200mV/DIV
1
μ
s/DIV
1568 TA10
DUAL 2nd ORDER LOWPASS FILTER DESIGU
Table 3. Resistor Values in Ohms, Dual 2nd Order Lowpass
Bessel, Gain = 1
f
CUTOFF
(MHz)
R11, R21
1
2
3
4
5
6
7
R31
1180
590
383
287
232
191
162
866
422
280
210
165
137
115
Amplitude Response
2nd Order Lowpass Bessel, f
CUTOFF
= 1MHz
10
FREQUENCY (MHz)
0.1
–50
G
–40
–30
–20
–10
1
10
20
1568 TA11
–60
–70
–80
–90
0
Transient Response
2nd Order Lowpass Bessel, f
CUTOFF
= 1MHz
INPUT
500mV/DIV
OUTPUT
200mV/DIV
1
μ
s/DIV
1568 TA12
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