140 MHz Bandpass Filter 2 MHz Bandwidth Part Number 851905 Data Sheet Typical Performance Parameter Center Frequency Typical Maximum 139.88 140 140.12 dB - 23.8 26 1 dB Bandwidth MHz 1.65 1.75 - 3 dB Bandwidth MHz 2 2.071 - 40 dB Bandwidth MHz - 3.6 3.9 dB - 0.28 0.6 Phase Linearity deg - 1.6 3 Group Delay Variation nsec - 45 120 Absolute Delay Passband Variation sec - 2.7 - Ultimate Rejection dB 50 60 - Substrate Material - - Quartz - C - 25 - Ambient Temperature Package Outline 141.5 141.2 175 140 105 70 35 0 -35 -70 -105 -140 -175 140.9 140.6 140.3 140 139.7 Horizontal: 300 kHz/Div Vertical: 1 dB/Div Vertical: 35 nsec/Div 139.4 139.1 138.8 Specifications Unit Minimum MHz Insertion Loss 138.5 143 142.4 1 0 -1 -2 -3 -4 -5 -6 -7 -8 -9 141.8 141.2 140.6 139.4 140 Horizontal: 600 kHz/Div Vertical: 10 dB/Div 138.8 138.2 137.6 137 10 0 -10 -20 -30 -40 -50 -60 -70 -80 -90 Matching Configuration L1 = 50 nH , L2 = 63 nH Nominal Source/Load Impedance = 50 Package Style I 11/24/99 Sawtek Inc. Telephone: (407) 886-8860 Fax: (407) 886-7061