TTE滤波器LT8

产品名称：TTE 滤波器 LT8  
型号：LT8   
描述：
SERIES NUMBER：LT8
NUMBER OF POLES：8   
INSERTION LOSS at 5.0 x f -3dBc dB MAXIMUM：0.5 
STOPBAND
        ATTENUATION dBc MINIMUM ：-60 
        FREQUENCY：4.5 x f -3dBc

NOTES:
? Operating Temperature Range: 
 0°C to +70°C 
? Number of Poles: 3 to 10
? VSWR: 1.5:1 Typical
? Input Power: 20 mW
? Case Type: Refer to Case Selection Guide
? Case Options: PCB, SMT, BNC or SMA
? Normalized Response: Refer to Graphs
? Product Info: Refer to LT Series 
TERMINATIONS: 
50 Ω 100 MHz - 200 MHz
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 CALCULATIONS:
Using part number LT9-144K-50-1335, we know 
that the filter is a 9 pole Bessel lowpass filter. 
Scroll down to series number LT9. Moving to the 
right we find the stopband specification listed as 
-60dBc minimum at 4.3 x f -3dBc. Thus, the -60dBc 
frequency is at 619.2 kHz (4.3 x 144 kHz).

PART NUMBER DERIVATION: 
LT9 *(R) -144K -50 -1335 
1 2 3 4 5 6 
1) Series, LT 
2) Number of poles, 9
3) “R” RoHS compliant. Allow for longer lead time.
4) f-3dBc
5) Terminations
6) Case selection from the case selection guide