70 MHz SAW Filter
35 MHz Bandwidth
Part Number: SF0070BA02489S
Spectrum Microwave
400 Nickerson Road, Marlborough, MA 01752, USA • Phone 1-508-251-6400 • Fax 1-508-251-6401
www.SpectrumMicrowave.com
DSSF0070BA02489S Rev A 9-Feb-2010
ECN 36650 Page 2 of 3
SPECIFICATION
Parameter Min Typ Max Units
Center Frequency, FC - 70 - MHz
Minimum Insertion Loss 1 - 24.2 25 dB
Lower 1.5 dB band Edge 3 - 51.93 52.50 MHz
Upper 1.5 dB band Edge 3 87.50 88.08 - MHz
Lower 40 dB band Edge 3 47.00 48.60 - MHz
Upper 40 dB band Edge 3 - 91.40 92.00 MHz
Relative Attenuation (10 to 37 MHz) 3 45 48 - dB
Relative Attenuation (37 to 47 MHz) 3 40 42 - dB
Relative Attenuation (92 to 103 MHz) 3 40 42 - dB
Relative Attenuation (103 to 170 MHz) 3 45 50 - dB
Absolute Delay - 0.67 1 us
Amplitude Ripple 2 - 0.8 1.5 dB p-p
Amplitude Ripple (any 1.25 MHz BW) 2 0.35 0.5 dB p-p
Source/Load Impedance (differential) 50 ohms
Temperature Coefficient of Frequency -74 ppm/˚C
Ambient Temperature 40 ˚C
Notes: 1. Measured with 50Ω analyzer.
2. Measured within the 1.5 dB bandwidth.
3. Measured relative to the Insertion Loss Value.
MAXIMUM RATINGS
Parameter Min Max Units
Storage Temperature Range -40 85 ˚C
Operating Temperature Range -10 80 ˚C
Input Power Level - +10 dBm
MATCHING CIRCUIT
Typical Matching Components: Ls1 = 270 nH Ls2 = 660 nH
Notes:
1. Recommend +/-2% tolerance inductors. Inductor Q=40.
2. Component values shown are for reference only and may change depending on board layout.
11 5
12 6
Input
50 Ω
Single-ended
Output
50 Ω
Single-ended
GND GND