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B39431R0820H210 Datasheet(PDF) 3 Page - TDK Electronics |
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B39431R0820H210 Datasheet(HTML) 3 Page - TDK Electronics |
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3 / 5 page  3 February 04, 2013 R820 433.92 MHz SAW Components SAW resonator Data sheet Please read cautions and warnings and important notes at the end of this document. Characteristics Reference temperature: TA = 25 ˚C Terminating source impedance: ZS = 50 Ω Terminating load impedance: ZL = 50 Ω min. typ. max. Center frequency1) 1) Center frequency is defined as maximum of the real part of the admittance. fC 433.845 433.920 433.995 MHz Minimum insertion attenuation α min — 1.2 1.7 dB Unloaded quality factor QU 7500 11500 — Ageing of fC — — –50/+50 ppm Equivalent circuit elements Motional capacitance C1 — 2.13 — fF Motional inductance L1 — 63.16 — µH Motional resistance R1 —14 22 Ω Parallel capacitance2) 2) If used in two port configuration (pin 2 - input, pin 5 - output) C 0 is reduced by approx. 0.3 pF. C0 — 2.5 — pF Temperature coefficient of frequency3) 3) Temperature dependence of f C: fC(TA) = fC(T0) (1 + TCf (TA – T0) 2) TCf — –0.032 — ppm/K2 Turnover temperature T0 10—40 ˚C Maximum ratings Operable temperature range T –45/+125 ˚C Storage temperature range Tstg –45/+125 ˚C DC voltage VDC 12 V Source power PS 0 dBm |
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