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