140 MHz Bandpass Filter 5 MHz Bandwidth Part Number 851911 Data Sheet Typical Performance Parameter Center Frequency Typical Maximum 139.8 140 140.2 dB - 22.5 25 1 dB Bandwidth MHz 4.7 4.88 - 3 dB Bandwidth MHz 5 5.3 - 40 dB Bandwidth MHz - 6.77 7 dB - 0.43 0.7 Phase Linearity deg - 2 4 Group Delay Variation nsec - 70 180 Absolute Delay Passband Variation sec - 2.59 - Ultimate Rejection dB 50 60 - Substrate Material - - Quartz - C - 25 - Ambient Temperature Package Outline 143 142.4 150 120 90 60 30 0 -30 -60 -90 -120 -150 141.8 141.2 140.6 140 139.4 Horizontal: 600 kHz/Div Vertical: 1 dB/Div Vertical: 30 nsec/Div 138.8 138.2 137.6 Specifications Unit Minimum MHz Insertion Loss at Fo 1 0 -1 -2 -3 -4 -5 -6 -7 -8 -9 137 10 0 -10 -20 -30 -40 -50 -60 -70 -80 -90 Horizontal: MHz/Div 130 132 134 136 138 1402 142 144 146 148 150 Vertical: 10 dB/Div Matching Configuration L1 = 133nH, L2 = 95nH C1 = 52pF, C2 = 80pF Nominal Source/Load Impedance = 50 Package Style I 11/24/99 Sawtek Inc. Telephone: (407) 886-8860 Fax: (407) 886-7061