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B39141-B3853-U210 Datasheet(PDF) 3 Page - EPCOS |
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B39141-B3853-U210 Datasheet(HTML) 3 Page - EPCOS |
3 / 7 page 3 Sep 30, 2002 SAW Components B3853 141,0 MHz Low-Loss Filter Data Sheet Characteristics Operating temperature range: T = 0 to +85 ˚C Terminating source impedance: ZS = 50 Ω and external matching network Terminating load impedance: ZL = 50 Ω and external matching network 1) Except for two peaks around 144 and 146 MHz with typically 45dB 2) Temperature dependance of fc: fc(TA) = fc(T0)(1 + TCf(TA – T0)2) min. typ. max. Nominal frequency fN — 141,0 — MHz Minimum insertion attenuation α N — 11,0 13,0 dB 3,75 dB bandwidth α rel ≤ 3,75dB B3,75dB 1,18 1,32 — MHz Amplitude ripple (p-p) fN ± 525 kHz ∆α — 0,2 1,0 dB Phase Linearity (rms) fN ± 630 kHz ∆ϕ — 1,0 2,0 deg Absolute group delay @ fN τ — 2,75 — µs Group delay ripple (p-p) fN ± 525 kHz ∆τ — 100 300 ns Relative attenuation (relative to α N) α rel 50 MHz ... 120 MHz 50 60 — dB 120 MHz ... fN − 1350 kHz 45 52 — dB fN − 1350 kHz ... fN − 1250 kHz 41 45 — dB fN + 1250 kHz ... fN + 1750 kHz 41 45 — dB fN + 1750 kHz ... 175 MHz 1) 45 48 — dB 175 MHz ... 500 MHz 60 70 — dB Return loss fN ± 525 kHz 10 15 — dB 3rd-order intercept point IP3 40 45 — dB Temperature coefficient of frequency 2) TCf — –0,036 — ppm/K2 Turnover temperature T0 — 42,5 — ˚C |
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