140 MHz Bandpass Filter 4 MHz Bandwidth Part Number 851909 Data Sheet Typical Performance Parameter Typical Maximum 139.85 140 140.15 dB - 23.3 25 1 dB Bandwidth MHz 3.7 3.85 - 3 dB Bandwidth MHz 4 4.217 - 40 dB Bandwidth MHz - 5.54 6 dB - 0.4 0.7 Phase Linearity deg - 1.7 4 Group Delay Variation nsec - 45 120 Absolute Delay Insertion Loss Passband Variation µsec - 2.819 - Ultimate Rejection dB 50 60 - Substrate Material - - Quartz - °C - 25 - Ambient Temperature Package Outline 142.5 142 150 120 90 60 30 0 -30 -60 -90 -120 -150 141.5 141 140.5 140 139.5 Horizontal: 500 kHz/Div Vertical: 1 dB/Div Vertical: 30 nsec/Div 139 138.5 138 Specifications Unit Minimum MHz Center Frequency 0.25 0 -0.25 -0.5 -0.75 -1 -1.25 -1.5 -1.75 -2 -2.25 137.5 10 0 -10 -20 -30 -40 -50 -60 -70 -80 -90 Horizontal: MHz/Div 135 136 137 138 139 1401 141 142 143 144 145 Vertical: 10 dB/Div Matching Configuration L1 = 190 nH L2 = 210 nH C1 = 15 pf Nomianl Source/Load Impedance = 50Ω Package Style I 11/24/99 Sawtek Inc. Telephone: (407) 886-8860 Fax: (407) 886-7061