87.000 MHz Low-Loss Filter
Preliminary Specifications
Typical Performance
10
0
-10
-20
-30
-40
-50
-60
-70
-80
-90
Horizontal: 200 kHz/Div
86 86.2 86.4 86.6 86.8 87 87.2 87.4 87.6 87.8 88
Vertical: 10 dB/Div
1
0
-1
-2
-3
-4
-5
-6
-7
-8
-9
86.7
86.76
86.82
1050
840
630
420
210
0
-210
-420
-630
-840
-1050
87.18
87.24
-
7
±.2
±.4
±.6
±.8
1
2.4
350
1.7
-
-
-
-
70
87.3
Ω
400 kHz Bandwidth
Part Number 855500
Horizontal: 60 kHz/Div
Vertical: 1 dB/Div
Vertical: 210 nsec/Div
86.88
86.94
87
87.06
87.12
Parameter
Center Frequency
Insertion Loss (87
±
.075 MHz)
3.5 dB Bandedges
20 dB Bandedges
25 dB Bandedges
28 dB Bandedges
Amplitude Variation (87
±
.075 MHz)
Absolute Group Delay (87
±
.075 MHz)
Group Delay Variation (87
±
.075 MHz)
Input and Output VSWR
Ultimate Rejeciton 30 to 85.4 MHz
Ultimate Rejection 88.6 to 180 MHz
Ultimate Rejection 180 to 2000 MHz
Substrate Material
Temperature Range
Specifications
Unit
Minimum
MHz
dB
MHz
MHz
MHz
MHz
dB p-p
µsec
nsec
dB
dB
dB
dB
°C
-
-
-
-
-
-
-
-
-
-
34
34
50
-
-5
Typical
87
5.2
±
.182
±
.35
±
.371
-
0.62
2.3
230
1.2
47
46
60
Quartz
25
Maximum
Package Outline
Matching Configuration
Ω
L1 = 247 nH, L2 = 190 nH
C1 = 53 pF, C2 = 54 pF
Nominal Source/Load Impedance = 50Ω
Package Type SMP-75
10/20/99
Sawtek Inc.
Telephone: (407) 886-8860
Fax: (407) 886-7061
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