140 MHz Filter
18 MHz Bandwidth
Part Number
SF0140BA03073S
Micro Networks, 324 Clark Street, Worcester, MA 01606, USA tel: 508-852-5400, fax:508-852-8456, www.micronetworks.com
Rev X3 17-Nov-03
Page 1 of 2
TYPICAL PERFORMANCE
Horizontal: 6 MHz/div Vertical (from top): Magnitude 10,1 dB/div
Phase Deviation 10 deg/div
Group Delay Variation 100 ns/div
SPECIFICATION
Parameter Min Typ Max Units
Center Frequency (Fc) 1 139.6 140 140.4 MHz
Insertion Loss 10 12 dB
1 dB Bandwidth 17.25 18.2 MHz
3 dB Bandwidth 18 19.2 MHz
30 dB Bandwidth 22.2 23 MHz
40 dB Bandwidth 34 48 MHz
Passband Ripple 0.7 1 dB
Phase Deviation from Linear2 5 10 deg
Group Delay Variation2 85 120 ns
Absolute Delay 0.82 µs
Substrate LiNbO3 -
Temperature Coefficient of Frequency (Tc)3 -90 ppm/°C
Ambient Temperature 25 °C
System Source and Load Impedance 50 Ω
Notes: 1. Average of lower & upper 3 dB frequencies.
2. Evaluated over 80% of the 3 dB bandwidth.
3. Typical change of filter frequency response with temperature is ∆f/fref = (T-Tref)*Tc ppm.