产品名称:TTE 滤波器 LB7
型号:LB7
描述:
SERIES NUMBER: LB7
NUMBER OF POLES:7
INSERTION LOSS at 0.1 x f -3dBc dB MAXIMUM:0.5
STOPBAND
ATTENUATION dBc MINIMUM:-60
FREQUENCY:2.8 x f
-3dBc
NOTES:
? Operating Temperature Range:
0°C to +70°C
? Number of Poles: 3 to 11
? VSWR: 1.5:1 Typical
? Input Power: 20 mW
? Case Type: Refer to Case Selection Guide
? Case Option: PCB
? Normalized : Refer to Graphs
? Product Info: Refer to LB Series
TERMINATION:
50 Ω 100 MHz - 2 GHz
50 Ω or 75 Ω 300 kHz - 100 MHz
1 kΩ - 50 Ω 10 kHz - 300 kHz
10 kΩ - 1 kΩ 100 Hz - 10 kHz
STOPBAND FREQUENCY CALCULATION:
Using part number LB7-125M-50-3A, we know that
the filter is a 7 pole Butterworth lowpass filter.
Scroll down series number LB7. Moving to the
right we find the stopband specification listed as
-60dBc minimum at 2.8 x f -3dBc. Thus, the -60dBc
frequency is at 350 MHz (2.8 x 125 MHz).