140 MHz Bandpass Filter 6 MHz Bandwidth Part Number 851913 Data Sheet Typical Performance Parameter Center Frequency Typical Maximum 139.8 140 140.2 dB - 26.5 28 1 dB Bandwidth MHz 5.6 5.75 - 3 dB Bandwidth MHz 6 6.3 - 40 dB Bandwidth MHz - 8.22 8.4 dB - 0.35 0.7 Phase Linearity deg - 1.8 4 Group Delay Variation nsec - 44 110 Absolute Delay Passband Variation sec - 2.35 - Ultimate Rejection dB 50 60 - Substrate Material - - Quartz - C - 25 - Ambient Temperature Package Outline 144 143.2 250 200 150 100 50 0 -50 -100 -150 -200 -250 142.4 141.6 140.8 140 139.2 Horizontal: 800 kHz/Div Vertical: 1 dB/Div Vertical: 50 nsec/Div 138.4 137.6 136.8 Specifications Unit Minimum MHz Insertion Loss at Fo 1 0 -1 -2 -3 -4 -5 -6 -7 -8 -9 136 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 = 135 nH, L2 = 140 nH C1 = 52 pf, C2 = 109 pf Nominal Source/Load Impedance = 50 Package Style I 11/24/99 Sawtek Inc. Telephone: (407) 886-8860 Fax: (407) 886-7061