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B3848 Datasheet(PDF) 3 Page - EPCOS |
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B3848 Datasheet(HTML) 3 Page - EPCOS |
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3 / 6 page  3 Sep 02, 2003 SAW Components B3848 208,0 MHz Low-Loss Filter Data Sheet Characteristics Operating temperature range: T = -10 .. 85 ˚C Terminating source impedance: ZS = 50 Ω and matching network Terminating load impedance: ZL =50 Ω and matching network min. typ. max. Nominal frequency fN — 208,0 — MHz Minimum insertion attenuation α min — 6,5 7,5 dB Pass bandwidth α rel ≤ 1,0 dB B1dB 400 590 — kHz α rel ≤ 3,0 dB B3dB — 850 — kHz Amplitude ripple (peak to adjacent valley) fN ± 200 kHz — 0,1 — dB Amplitude variation (p-p) ∆α fN ± 200 kHz — 0,5 1,0 dB Absolute group delay τ @ fN 0,7 1,3 1,7 µs Group delay ripple (p-p) ∆τ fN ± 200 kHz — 50 120 ns Relative attenuation (relative to α min) α rel fN ± 0,4 MHz ... fN ± 0,6 MHz 0 2 — dB fN ± 0,6 MHz ... fN ± 1,2 MHz 8 10 — dB fN ± 1,2 MHz ... fN ± 1,8 MHz 20 30 — dB fN ± 1,8 MHz ... fN ± 3,4 MHz 25 40 — dB fN ± 3,4 MHz ... fN ± 6,0 MHz 34 50 — dB fN ± 6,0 MHz ... fN ± 9,5 MHz 40 50 — dB fN ± 9,5 MHz ... fN ± 13,0 MHz 43 60 — dB 10,0 MHz ... fN − 30,0 MHz 55 60 — dB fN − 30,0 MHz ... fN − 13,0 MHz 50 55 — dB fN + 13,0 MHz ... fN + 30,0 MHz 45 50 — dB fN + 30,0 MHz ... 450,0 MHz 1) 50 55 — dB VSWR (Input and output in pass band) — 1,3 2,3 |
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