140 MHz Bandpass Filter 500 kHz Bandwidth Part Number 851901 Data Sheet Typical Performance Parameter Center Frequency 139.94 Typical Maximum 140 140.06 dB - 19.5 21.5 1 dB Bandwidth MHz 0.3 0.325 - 3 dB Bandwidth MHz 0.5 0.56 - 40 dB Bandwidth MHz - 1.73 1.9 dB - 0.03 0.2 Phase Linearity deg - 1.5 3 Group Delay Variation nsec - 100 300 Absolute Delay Passband Variation µsec - 2.776 - Ultimate Rejection dB 50 68 - Substrate Material - - Quartz - °C - 20 - Temperature Range Package Outline 140.3 140.24 150 120 90 60 30 0 -30 -60 -90 -120 -150 140.18 140.12 140.06 140 139.94 Horizontal: 60 kHz/Div Vertical: .5 dB/Div Vertical: 30 nsec/Div 139.88 139.82 139.76 Specifications Unit Minimum MHz Insertion Loss at Fo 139.7 141.75 141.4 0.5 0 -0.5 -1 -1.5 -2 -2.5 -3 -3.5 -4 -4.5 141.05 140.7 140.35 140 139.65 Horizontal: 350 kHz/Div Vertical: 10 dB/Div 139.3 138.95 138.6 138.25 10 0 -10 -20 -30 -40 -50 -60 -70 -80 -90 Matching Configuration No Matching Required Nominal Source/Load Impedance = 50Ω Package Style O 11/24/99 Sawtek Inc. Telephone: (407) 886-8860 Fax: (407) 886-7061