140 MHz Filter
28 MHz Bandwidth
Part Number SF0140CF51935T
Micro Networks., 324 Clark Street, Worcester, MA 01606, USA tel: 508-852-5400, fax:508-852-8456, www.micronetworks.com
Rev 1.0 30-Oct-02
Page 1 of 2
Parameter Min. Typ. Max. Units.
Center Frequency ( Fc) 1 139.75 140.0 140.25 MHz
Insertion Loss at Fc 24.8 26.5 dB
1 dB Bandwidth 26.4 26.8 MHz
3 dB Bandwidth 28 28.4 MHz
40 dB Bandwidth 34.8 36 MHz
Passband Ripple 0.5 0.7 dB p-p
Phase Ripple 3.0 6 deg p-p
Group Delay Ripple 20.0 50 ns p-p
Absolute Delay 1.04 us
Ultimate Rejection 50 60 dB
Temperature Coefficient of Frequency -80 ppm/º C
Substrate Material 128 Lithium Niobate
Source and Load Impedance 50 Ω
Ambient Temperature 25 º C
Notes:
1: Mean Value of 3 dB band edges.
TYPICAL PERFORMANCE
Horizontal: 8.0 MHz/div Vertical (from top): Magnitude 10 dB/div
Magnitude 1 dB/div
Phase 5 deg/div
SPECIFICATION
140 MHz Filter
28 MHz Bandwidth
Part Number SF0140CF51935T
Micro Networks., 324 Clark Street, Worcester, MA 01606, USA tel: 508-852-5400, fax:508-852-8456, www.micronetworks.com
Micro Networks
Worldwide Headquarters: 324 Clark Street Worcester, MA 01606. tel: 508-852-5400 fax: 508-852-8456
European Sales Headquarters: Hertosingel 20 6214 AD Maastricht, Netherlands. tel: +31-43-32-70912 fax: +31-43-32-70715
www.micronetworks.com
Rev 1.0 30-Oct-02
Page 2 of 2
PACKAGE OUTLINE
Units: mm
Pin Configuration:
Input: 14
Input Return: 1
Output: 8
Output Return: 7
Ground: 2, 9
MATCHING CIRCUIT
ISO 9001
Registered
Component values:
Ls1 = 47 nH (Minimum Q = 45)
Cp1 = 18 pF
Notes
1. Recommend use of 2% tolerance components.
2. Optimum values depend on board layout. Values intended as guide only
14 8
1 7
Ls1
Output
Input Cp1
