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B3861 Datasheet(PDF) 3 Page - EPCOS |
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B3861 Datasheet(HTML) 3 Page - EPCOS |
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3 / 6 page ![]() 3 Sep 24, 2002 SAW Components B3861 250,0 MHz Bandpass Filter Data Sheet Characteristics Operating temperature: TA = -10 ... +85 ˚C Terminating source impedance: ZS =50 Ω and matching network Terminating load impedance: ZL =50 Ω and matching network Group delay aperture: 125 kHz min. typ. max. Nominal frequency fN — 250,0 — MHz Maximum insertion attenuation in passband1) 1) matched with coilcraft CS0805 inductors α max — 16,3 19,0 dB (including matching network) Passband width α rel ≤ 1 dB B1dB 4,0 4,2 — MHz Amplitude ripple (p-p) ∆α fN ± 2,0 MHz — 0,5 1,0 dB Group delay ripple (p-p) ∆τ fN ± 2,0 MHz — 120 150 ns Relative attenuation (relative to α fN) α rel fN ± 3,0 MHz ... fN ± 3,5 MHz 11 15 — dB fN ± 3,5 MHz ... fN ± 4,0 MHz 21 35 — dB fN ± 4,0 MHz ... fN ± 6,0 MHz 24 35 — dB fN + 6,0 MHz ... fN + 12,5 MHz 40 45 — dB fN + 12,5 MHz ... fN + 14,3 MHz 54 57 — dB fN + 13,4 MHz 54 65 — dB fN + 14,3 MHz ... fN + 24,6 MHz 40 47 — dB fN + 24,6 MHz ... fN + 29,0 MHz 54 57 — dB 0,1 MHz ... 244 MHz 40 50 — dB 279 MHz ... 2,5 GHz 30 40 VSWR fN ± 2,0 MHz — 1,5:1 2:1 |
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