261.12 MHz Filter
for 3G Applications
Part Number SF0261CD12245S
Micro Networks Corp., 324 Clark Street,
Worcester, MA 01606, USA tel: 508-852-5400, fax:508-852-8456, www.micronetworks.com
Rev 1.0 12-Apr-01
Page 1 of 2
TYPICAL PERFORMANCE
Horizontal:
2.0
MHz/div
Vertical (from top): Magnitude
10 dB/div
SPECIFICATION
PARAMETER
Min
Typ
Max
Units
Center Frequency (Fc)
1
261.1
MHz
Operating Bandwidth
3.84
4.8
MHz
15 dB Bandwidth
7.0
8.0
MHz
35 dB Bandwidth
8.5
16
MHz
Ultimate Rejection (F
C
-40 MHz to F
C
-24 MHz)
45
47
dB
Ultimate Rejection (F
C
-24 MHz to F
C
-8 MHz)
45
47
dB
Ultimate Rejection (F
C
+8 MHz to F
C
+24 MHz)
40
42
dB
Ultimate Rejection (F
C
+24 MHz to F
C
+40 MHz)
40
42
dB
Input Power (ave)
+0
dBm
Insertion Loss
10
13
dB
Return Loss
2,3
6
dB
Source and Load Impedance
50
Passband Amplitude Ripple
2
0.5
1.0
dB
p-p
Passband Group Delay Ripple
2
50
80
ns
p-p
Operating Temperature Range
23
°
C
Notes: 1. Fixed reference. All specified bandwidths are centered at or referenced to this frequency.
2. To be satisfied across the 3.84 MHz Operating Bandwidth.
3. When matched with optimum component values.
261.12 MHz Filter
for 3G Applications
Part Number SF0261CD12245S
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
The Netherlands
tel: +31-43-32-70912
fax: +31-43-32-70715
www.micronetworks.com
Rev 1.0 12-Apr-01
Page 2 of 2
12 6
11 5
PACKAGE OUTLINE
Units: mm
Pin Configuration:
Input:
12
Input Return: 11
Output: 6
Output Return: 5
Ground: 1,2,3,4,7,8,9,10
MATCHING
CIRCUIT
Typical component values:
Ls1 = 24 nH
Ls2 = 22 nH
(
minimum inductor Q = 45
)
Cp1 = 30 pF
Cp2 = 30 pF
Notes
-
Requires 2% matching components.
-
Component values may change depending on board layout.
-
Recommended Inductors are Coilcraft 0805 series, capacitors are ATC 100 series
Cp1 Cp2
Ls2
Ls1
ISO 9001
Registered
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