141 MHz Filter
for CDMA Applications
Part Number SF0141CD01968S
Micro Networks Corp., 324 Clark Street,
Worcester, MA 01606, USA tel: 508-852-5400, fax:508-852-8456, www.micronetworks.com
Rev 1.0 08-Nov-01
Page 1 of 2
TYPICAL PERFORMANCE
Horizontal: 1 MHz/div
Vertical (from top): Magnitude
10 dB/div
Magnitude
1 dB/div
Group Delay
200 nsec/div
SPECIFICATION
Parameter
Min
Typ
Max
Units
Center Frequency (Fc)
1
141
MHz
Insertion Loss at Fc
11
14
dB
Passband Width
2
1.05
MHz
3.75 dB Bandwidth
1.18
1.4
MHz
42.5 dB Bandwidth
2.3
2.5
MHz
Stopband rejection (79.75 to 139.75 MHz and 142.25
MHz to 202.25 MHz)
42.5
47
dB
Passband Amplitude Ripple
3
0.8
1.0
dB p-p
Passband Group Delay Ripple
3
160
300
ns p-p
Return Loss at Input and Output
3
10
13
dB
Passband Phase Linearity
4
0.8
2.0
deg rms
Absolute Delay
2.34
2.39
2.54
s
Source and Load Impedance
50
Operating Temperature Range
0
+85
C
Notes: 1. Fixed reference. All bandwidths are specified centered at this frequency.
2. Defined bandwidth. Other parameters are specified over this bandwidth.
3. Over the passband width.
4. Over 141 MHz +/- 630 kHz.
5. When matched using external components as described below.
141 MHz Filter
for CDMA Applications
Part Number SF0141CD01968S
Micro Networks Corp., 324 Clark Street,
Worcester, MA 01606, USA tel: 508-852-5400, fax:508-852-8456, www.micronetworks.com
Micro Networks Corporation
Worldwide Headquarters: 324 Clark Street Worcester, MA 01606. tel: 508-852-5400 fax: 508-852-8456
European Sales Headquarters: Hertosingel 20 6214 AD Maastricht, Netherlands. tel: +31-43-32-70915 fax: +31-43-32-70715
www.micronetworks.com
Rev 1.0 08-Nov-01
Page 2 of 2
PACKAGE OUTLINE
Units: mm
Pin Configuration:
Input:
1
Input Return: 10
Output:
6
Output Return: 5
Ground:
2,3,4,7,8,9
MATCHING
CIRCUIT
Typical component values:
Ls1 = 120 nH
Ls2 = 110 nH
(
minimum Q = 45
)
Cp1 = 56 pF
Cp2 = 56 pF
Notes
May require 2% matching components or variable inductors in order to meet the return loss / VSWR
specification.
Component values change depending on board layout. The values shown here are intended as a guide only.
ISO 9001
Registered
Cp1
Cp2
Ls2
Ls1
1
6
10
5
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