240 MHz SAW Filter
1.23 MHz Bandwidth
Part Number: SF0240CD03109S
Spectrum Microwave
400 Nickerson Road, Marlborough, MA 01752, USA • Phone 1-508-251-6400 • Fax 1-508-251-6401
www.SpectrumMicrowave.com
DSSF0240CD03109S Rev A 19-Mar-2010
ECN 36650 Page 1 of 3
DESCRIPTION
• 240 MHz SAW bandpass filter with 1.23 MHz bandwidth.
• 24.6 x 9 mm LCC package.
• RoHS compliant.
TYPICAL PERFORMANCE
Horizontal: Frequency : 0.5 MHz/div
Vertical from Top: Relative Magnitude : 10 dB/div
Relative magnitude : 1 dB/div
Phase Linearity : 5 deg/div
Group Delay Deviation : 100 ns/div
S11 (237.5-242.5 MHz) S22 (237.5-242.5 MHz)
240 MHz SAW Filter
1.23 MHz Bandwidth
Part Number: SF0240CD03109S
Spectrum Microwave
400 Nickerson Road, Marlborough, MA 01752, USA • Phone 1-508-251-6400 • Fax 1-508-251-6401
www.SpectrumMicrowave.com
DSSF0240CD03109S Rev A 19-Mar-2010
ECN 36650 Page 2 of 3
SPECIFICATION
Parameter 3 Min Typ Max Units
Center Frequency ( Fc) 1 - 240 - MHz
Insertion Loss at Fc - 12.7 16 dB
1 dB Bandwidth 2 1.23 1.40 - MHz
10 dB bandwidth 2 - 1.87 - MHz
38 dB Bandwidth 2 - 2.29 2.5 MHz
45 dB bandwidth 2 - 2.35 4.1 MHz
Passband Ripple (Fc+/-0.615 MHz) - 0.2 1 dB p-p
Phase Linearity (Fc+/- 0.615 MHz) - 2.5 8 deg p-p
Stopband Rejection (Fc+/-1.25 to Fc+/-2.05 MHz) 38 46 - dB
Stopband Rejection (Fc+/-2.05 to Fc+/-220 MHz) 45 47.5 - dB
Absolute Delay - 3.04 - us
Input Return Loss (Fc+/-0.615 MHz) 10 15 - dB
Output Return Loss (Fc+/-0.615 MHz) 10 18 - dB
System Source and Load Impedance 50 Ω
Ambient Temperature - 25 - ºC
Notes: 1. Defined as the average of the 10 dB frequencies..
2. All dB levels are defined relative to the insertion loss at Fc.
3. All electrical specifications apply across the full operating temperature range.
MAXIMUM RATINGS
Parameter Min Typ Max Units
Storage Temperature Range -40 25 85 ˚C
Operating Temperature Range -10 25 85 ˚C
Input Power Level - 10 13 dBm
MATCHING CIRCUIT
Typical component values:
Notes:
1. Recommend use of 2% tolerance matching components. Inductor Q=45.
2. Component values are for reference only and may change depending on board layout.
Ls1 = 52 nH Ls2 = 56 nH
Cp1 = 29 pF Cp2 = 27 pF
Input
50 Ω
Single-ended
Output
50 Ω
Single-ended
10 5
1 6
240 MHz SAW Filter
1.23 MHz Bandwidth
Part Number: SF0240CD03109S
Spectrum Microwave
400 Nickerson Road, Marlborough, MA 01752, USA • Phone 1-508-251-6400 • Fax 1-508-251-6401
www.SpectrumMicrowave.com
DSSF0240CD03109S Rev A 19-Mar-2010
ECN 36650 Page 3 of 3
PACKAGE OUTLINE SUGGESTED FOOTPRINT
ISO 9001
Registered
All specifications are believed to be accurate and reliable. However, Spectrum Microwave reserves the right to make changes without notice.
© 2010 All rights reserved.
Package Material:
Body: Al2O3 ceramic
Lid: Kovar, Ni plated
Terminations: Au plating 1 µm min,
over a 1.3-8.9 µm Ni plating
Units: mm
Tolerances are ±0.15 mm except
where indicated and for the
overall length and width, which
are nominal values.
Pad Configuration:
Input: 10
Input return: 1
Output: 5
Output return: 6
Ground: All other pads
Index Mark
