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855915 Datasheet(PDF) 2 Page - TriQuint Semiconductor |
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855915 Datasheet(HTML) 2 Page - TriQuint Semiconductor |
2 / 5 page Data Sheet Part Number 855915 249.6 MHz SAW Filter Electrical Specifications (1) Temperature Range: (2) -10 to +80 oC Parameter (3) Minimum Typical Maximum Unit Center Frequency - 249.6 - MHz Minimum Insertion Loss at 249.6 MHz - 16.11 20 dB 1 dB Lower Frequency (4) 1 dB Upper Frequency 1 dB Bandwidth - 251.52 3.84 246.98 251.89 4.89 247.68 - 5 MHz MHz MHz 40 dB Lower Frequency (4) 40 dB Upper Frequency 40 dB Bandwidth 244.1 - - 244.27 254.41 10.14 - 255.1 11 MHz MHz MHz Passband Ripple 247.68 - 251.52 MHz - 0.22 1 dB p-p Group Delay Variation 247.68 - 251.52 MHz - 27.15 50 nsec Input VSWR 247.68 - 251.52 MHz - 1.25:1 2.10:1 - Output VSWR 247.68 - 251.52 MHz - 1.34:1 2.10:1 - Relative Attenuation (4) 10 - 234.6 MHz 264.6 - 450 MHz 45 45 63.5 55.63 - - dB dB Source Impedance (5) - 50 - Ω Load Impedance (5) - 50 - Ω Notes: 1. All specifications are based on the test circuit shown below 2. In production, devices will be tested at room temperature to a guardbanded specification to ensure electrical compliance over temperature 3. Electrical margin has been built into the design to account for the variations due to manufacturing tolerances 4. The attenuation measurements are referenced to average insertion loss over passband 5. This is the optimum impedance in order to achieve the performance shown Test Circuit: Actual matching values may vary due to PCB layout and parasitics 50 Ω Single-ended 1,2,3,5,6 7,8,9,11,12 50 Ω 27nH 10 4 120nH 50 Ω Ω 10 82nH 110nH 82nH 6.8Ω Subject to change or obsolescence without notice Rev B 30-Oct-2002 Page 2 of 5 |
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