326.4 MHz Filter
for UMTS Applications
Part Number SF0326CD21924S
Micro Networks, 324 Clark Street, Worcester, MA 01606, USA tel: 508-852-5400, fax:508-852-8456, www.icst.com
TYPICAL PERFORMANCE
Horizontal: 8 MHz/div
Vertical (from top): Magnitude
Magnitude
Group Delay
10 dB/div
1 dB/div
50 nsec/div
SPECIFICATION
Parameter
1
Center Frequency (Fc)
Insertion Loss
2 dB Bandwidth
40 dB Bandwidth
Rejection (10 MHz to 50 MHz)
Rejection (50 MHz to F
C
-50 MHz)
Rejection (F
C
-50 MHz to F
C
-13 MHz)
Rejection (F
C
+13 MHz to F
C
+50 MHz)
Rejection (F
C
+50 MHz to 450 MHz)
2
Passband Amplitude Ripple
3
Passband Group Delay Ripple
Source and Load Impedance
Operating Temperature Range
Min
Typ
326.4
15.5
16.7
23.6
55
42
44
59
0.3
30
50
23
Max
18.5
26
Units
MHz
dB
MHz
MHz
dB
dB
dB
dB
dB
dB p-p
ns p-p
Ω
°
C
15.0
30
47
40
40
47
0.7
50
+80
-10
Notes: 1. Fixed reference. All specified bandwidths are centered at this frequency.
2. Over Fc
±
2.5 MHz.
3. Over Fc
±
7.5 MHz.
Rev 04x 24-Dec-04
Page 1 of 2
326.4 MHz Filter
for UMTS Applications
Part Number SF0326CD21924S
Micro Networks, 324 Clark Street, Worcester, MA 01606, USA tel: 508-852-5400, fax:508-852-8456, www.icst.com
PACKAGE OUTLINE
Units:
mm
Pin Configuration:
Input:
2
Output:
8
Ground:
1,3,4,5,6,7,9,10,11,12
MATCHING CIRCUIT
2
8
Typical component values:
(
minimum inductor Q = 45
)
Notes
Ls1 = 22 nH
Cp1 =22 pF
Ls2 = 18 nH
Cp2 =22 pF
- Requires 2% matching components.
- Component values may change depending on board layout.
- All pins other than 2 and 8 are connected together internally to the package
ISO 9001
Registered
Micro Networks
324 Clark Street Worcester, MA 01606. tel: 508-852-5400 fax: 508-852-8456
www.icst.com
Rev 04x 24-Dec-04
Page 2 of 2
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