137.5 MHz Filter
Part Number
SF0137BA02305S
Micro Networks, 324 Clark Street,
Worcester, MA 01606, USA tel: 508-852-5400, fax:508-852-8456, www.micronetworks.com
Rev 1.0 6-June-02
Page 1 of 2
PERFORMANCE
Horizontal: 0.5 MHz/div
Vertical (from top):
Magnitude
10 dB/div
Magnitude
1 dB/div
Group Delay
50 ns/div
SPECIFICATION
Parameter
Min
Typ
Max
Units
Center Frequency (Fc)
1
137.5
MHz
Insertion Loss at Fc
11
14
dB
1 dB Bandwidth
1.0
1.2
MHz
3 dB Bandwidth
1.46
MHz
40 dB Bandwidth
2.46
2.6
MHz
Passband Amplitude Ripple
2
0.65
1.0
dB p-p
Passband Phase Linearity
2
1.2
5
deg p-p
Passband Group Delay Ripple
2
40
ns p-p
Ultimate rejection (10 MHz 127.5 MHz)
and (147.5 MHz 200 MHz)
40
43
dB
Return Loss at Input and Output
2 3
18
dB
Source and Load Impedance
50
Operating Temperature Range
4
-40
23
+85
C
Notes: 1. Fixed reference. All specified bandwidths are centered at this frequency.
2. Over the central 1 MHz bandwidth.
3. When matched using external components in MNC test fixture.
4. The above specification applies over the full operating temperature range.
137.5 MHz Filter
Part Number
SF0137BA02305S
Micro Networks, 324 Clark Street,
Worcester, MA 01606, USA tel: 508-852-5400, fax:508-852-8456, www.micronetworks.com
Micro Networks
324 Clark Street Worcester, MA 01606. tel: 508-852-5400 fax: 508-852-8456
European Sales Office: Hertosingel 20 6214 AD Maastricht, Netherlands. tel: +31-43-32-70915 fax: +31-43-32-70715
www.micronetworks.com
Page 2 of 2
PACKAGE OUTLINE
Units:
mm
Pin Configuration:
Input:
10
Output:
5
Ground:
1,2,3,4,6,7,8,9
MATCHING
CIRCUIT
Component values in 50
:
Ls1 = 128 nH
Ls2 = 126 nH
(Minimum Q = 45)
Cp1 = 56 pF
Cp2 = 56 pF
Notes
1. 2% component tolerances are recommended
2. Required values can vary with board layout.
Ls1
Ls2
Cp1
Cp2
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