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B39431B3960B210 Datasheet(PDF) 3 Page - TDK Electronics |
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B39431B3960B210 Datasheet(HTML) 3 Page - TDK Electronics |
3 / 10 page 3 May 15, 2013 B3960 433.92 MHz SAW Components SAW RF filter Data sheet Please read cautions and warnings and important notes at the end of this document. Characteristics Temperature range for specification: T = –45 ˚C to +95 ˚C Terminating source impedance: ZS =50 Ω and matching network Terminating load impedance: ZL =50Ω and matching network min. typ. @ 25 ˚C max. Center frequency fC — 433.92 — MHz Minimum insertion attenuation α min incl. loss in matching elements (QL = 47) — 2.3 2.9 dB excl. loss in matching elements — 1.8 2.4 dB Pass band (relative to α min) 433.77 ... 434.07 MHz — 0.6 2.0 dB 433.75 ... 434.09 MHz — 0.8 3.0 dB Relative attenuation (relative to α min) α rel 10.00 ... 414.00 MHz 47 52 — dB 414.00 ... 427.00 MHz 43 48 — dB 427.00 ... 432.50 MHz 29 34 — dB 432.50 ... 433.10 MHz 13 17 — dB 434.92 ... 436.00 MHz 20 25 — dB 436.00 ... 450.00 MHz 25 30 — dB 450.00 ... 500.00 MHz 42 47 — dB 500.00 ... 810.00 MHz 47 52 — dB 810.00 ... 1500.00 MHz 60 65 — dB 1500.00 ... 2500.00 MHz 58 63 — dB Impedance for pass band matching1) 1) Impedance for passband matching bases on an ideal, perfect matching of the SAW filter to source- and to load impedance (here 50 Ohm). After removal of the SAW filter the input impedance of the input and output match- ing network is calculated. The conjugate complex value of these characteristic impedances are the input and output impedances for flat passband. For more details we refer to EPCOS application note #18. Input: ZIN =RIN || CIN — 360 || 1.7 — Ω || pF Output: ZOUT =ROUT || COUT — 360 || 2.2 — Ω || pF |
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