426 MHz SAW Bandpass Filter
5.16 MHz bandwidth
Part Number SF0426CN02357S
Integrated
Circuit
Systems, Inc.
Rev X5 21-Apr-05
Page 1 of 2
Integrated Circuit Systems • Surface Acoustic Wave Products
TYPICAL PERFORMANCE
Horizontal: 5 MHz/div Vertical (from top): Magnitude 10 dB/div
Magnitude 1 dB/div
Phase Linearity 5 deg/div
SPECIFICATION
Parameter Min Typ Max Units
Center Frequency (Fc, 3dB points) 426.00 MHz
Average Insertion Loss (Fc +/- 2.58 MHz) 2 20.5 dB
Lower 0.5 dB Band Edge
Upper 0.5 dB Band Edge
428.52 423.36
MHz
MHz
Lower 3 dB Band Edge
Upper 3 dB Band Edge 422.35
429.65 MHz
MHz
Lower 40 dB Band edge
Upper 40 dB Band Edge 421.31
430.74 MHz
MHz
Lower 45 dB Band Edge
Upper 45 dB Band Edge 421.20
430.89 MHz
MHz
Lower 50 dB Band Edge
Upper 50 dB Band Edge 419.50
433.50 MHz
MHz
Rejection (100 to 419.5 MHz) 50 dB
Rejection (433.5 to 500 MHz) 50 dB
Passband Ripple 0.7 dB
Phase Ripple (423.3 to 428.7 MHz) 10 deg p-p
Input VSWR at 426 MHz 5.0 :1
Output VSWR at 426 MHz 2.5 :1
Triple Transit Suppression 40 dB
Source and Load Impedance 50 Ω
Input Power +10 dBm
Operating Temperature Range 0 23 70
° C
Notes: 1. Unless noted otherwise, specifications ap ply @ temp range in a 50 ohm system.
2. All dB values are referenced to the insertion loss.
324 Clark Street, Worcester, MA 01606, USA • Phone 508-852-5400 • Fax 508-852-8456
www.icst.com
QF12/3
426 MHz SAW Bandpass Filter
5.16 MHz bandwidth
Part Number SF0426CN02357S
Integrated
Circuit
Systems, Inc.
Rev X5 21-Apr-05
Page 2 of 2
Integrated Circuit Systems • Surface Acoustic Wave Products
PACKAGE OUTLINE
Units: mm
Pad Configuration:
Input: 11
Output: 5
Ground: 1,2,3,4,6,7,8,9,10,12
MATCHING CIRCUIT
11 5
Cp1 Cp2
Ls1 Ls2
Typical component values: Ls1 = 27 nH Ls2 = 22 nH
Cp1 = 15 pF Cp2 = 12 pF
(Minimum inductor Q = 40)
Notes
Maximum 2% tolerance matching components shall be used. •
• Tuning values shown are for refe rence only. Optimum values may change depending upon board layout.
ISO 9001
Registered
324 Clark Street, Worcester, MA 01606, USA • Phone 508-852-5400 • Fax 508-852-8456
www.icst.com
QF12/3
