70 MHz Low-Loss Filter
Data Sheet
Typical Performance
10
0
-10
-20
-30
-40
-50
-60
-70
-80
-90
62.5 64 65.5
Horizontal: 1.5 MHz/Div
67 68.5 70 71.5 73 74.5 76 77.5
Vertical: 10 dB/Div
1
0
-1
-2
-3
-4
-5
-6
-7
-8
-9
68.6
68.25
68.95
50
40
30
20
10
0
-10
-20
-30
-40
-50
71.05
71.4
9.25
-
-
5.1
1
9
400
-
-
-
-
71.75
Ω
2.5 MHz Bandwidth
Part Number 854655
Horizontal: 350 kHz/Div
Vertical: 1 dB/Div
Vertical: 10 deg/Div
69.3
69.65
70.35
70.7
70
Parameter
Center Frequency
Insertion Loss at F
o
1 dB Bandwidth
3 dB Bandwidth
40 dB Bandwidth
Passband Ripple
Phase Linearity (70% of 3 dB Bandwidth)
Group Delay Variation (70% of 3 dB Bandwidth)
Absolute Delay
Substrate Material
Temperature Coefficient
Ambient Temperature
Specifications
Unit
Minimum
MHz
dB
MHz
MHz
MHz
dB
deg
nsec
usec
-
ppm/°C
°C
69.88
-
2
2.5
-
-
-
-
-
-
-
-
Typical
70
8.75
2.2
2.59
4.6
0.65
5.65
240
2.22
LiTaO
3
-23
25
Maximum
70.12
Package Outline
Matching Configuration
Ω
L1 = 150nH, L2 = 150nH
C1 = 100pF, C2 = 47pF
Nominal Source/Load Impedance = 50Ω
Package Style SMP-75
11/24/99
Sawtek Inc.
Telephone: (407) 886-8860
Fax: (407) 886-7061
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