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B39491B5217H310 Datasheet(PDF) 3 Page - TDK Electronics |
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B39491B5217H310 Datasheet(HTML) 3 Page - TDK Electronics |
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3 / 7 page  3 Oct 22, 2010 B5217 491.52 MHz SAW Components SAW IF filter Data Sheet Please read cautions and warnings and important notes at the end of this document. Characteristics Operating temperature range: T = –40 to 85 ˚C Terminating source impedance: ZS =50 Ω and matching network Terminating load impedance: ZL =50 Ω and matching network min. typ. @ 25 max. Nominal frequency fN — 491.52 — MHz Insertion attenuation at fN (T=25˚C) α n 6.0 7.0 8.0 dB Variation of Insertion att. (rel. to α n) α rel —— ±0.9 dB Passband bandwidth α rel <= 3 dB B3dB 1.0 1.67 — MHz Amplitude ripple (p-p) ∆α fN ± 0.1 MHz — 0.3 0.5 dB Group delay ripple (p-p) ∆τ fN ± 0.1 MHz — 10 70 ns Relative attenuation (relative to α n) α rel fN - 200.0 MHz ... fN - 10.00 MHz 40 46 — dB fN - 10.00 MHz ... fN - 3.000 MHz 35 44 — dB fN - 3.000 MHz ... fN - 1.000 MHz — 4.5 — dB fN - 1.000 MHz ... fN - 0.800 MHz — 1.5 — dB fN + 0.800 MHz ... fN + 1.000 MHz — 1.5 — dB fN + 1.000 MHz ... fN + 3.000 MHz — 4.5 — dB fN + 3.000 MHz ... fN + 10.00 MHz 35 43 — dB fN + 10.00 MHz ... fN + 200.00 MHz 40 48 — dB Temperature coefficient of frequency1) 1) Temperature dependance of fc: fc(TA) = fc(T0)(1 + TCf(TA – T0)2) TCf — -0.036 — ppm/K2 Turnover temperature T0 —25 — ˚C |
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