产品名称：TTE滤波器J87
型号：J87
描述：
SERIES NUMBER:J87
NUMBER OF POLES:9
INSERTION LOSS at 0.1 x f -3dBc dB MAXIMUM:0.5
STOPBAND
ATTENUATION dBc MINIMUM:-60
FREQUENCY:1.35 x f
-3dBc
NOTES:
? Operating Temperature Range:
0°C to +70°C
? Number of Poles: 7, 9 or 11
? 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 J 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
PART NUMBER DERIVATION:
J87 *(T) **(R) -5M -50 -65B
1 2 3 4 5 6
1) Series, J87 (which has 9 poles)
2) The “T” option specifies a filter witih low THD
for ADC/DAC testing. When selected the
minimum THD is >-80dBc, -96dBc typical.
3) “R” RoHS compliant. Allow for longer lead time.
4) f-3dBc
5) Terminations
6) Case selection from the case selection guide.
“T” option cases are larger than standard.
STOPBAND FREQUENCY CALCULATIONS:
Using part number J87-5M-50-65B, we know that
the filter is a 9 pole TTE-designed lowpass filter.
Scroll down to series number J87. Moving to the
right we find the stopband specification listed as
-60dBc minimum at 1.35 x f -3dBc. Thus, the -60dBc
frequency is at 6.75 MHz (1.35 x 5 MHz).