RF1211C

www.DataSheet4U.com ® RF1211C 315.0 MHz SAW Filter Ideal Front-End Filter for Domestic Wireless Receivers Low-Loss, Coupled-Resonator Quartz Design Simple External Impedance Matching Complies with Directive 2002/95/EC (RoHS) Pb The RF1211C is a low-loss, compact, and economical surface-acoustic-wave (SAW) filter designed to provide front-end selectivity in 315.0 MHz receivers. Receiver designs using this filter include superhet with 10.7 MHz or 500 kHz IF, direct conversion and superregen. Typical applications of these receivers are wireless remote-control and security devices (especially for automotive keyless entry) operating in the USA under FCC Part 15, in Canada under RSS-210, and in Italy This coupled-resonator filter (CRF) uses selective null placement to provide suppression, typically greater than 40 dB, of the LO and image spurious responses of superhet receivers with 10.7 MHz IF. RFM’s advanced SAW design and fabrication technology is utilized to achieve high performance and very low loss with simple external impedance matching. Electrical Characteristics Item Center Frequency @ 25°C Pass band (relative to ILmin) 314.77~315.2 MHz 314.71~315.26 MHz Pass bandwidth (relative to ILmin) Attenuation: (relative to ILmin) 10~270 270~309 309~313.94 316~335 335~400 400~1000 MHz MHz MHz MHz MHz MHz Output Turnover To Frequency Aging Standard Reel Quantity (dB) (dB) BW3 (KHz) (dB) (dB) (dB) (dB) (dB) (dB) (dB) ZIN=RIN//CIN ZOUT=ROUT//COUT (deg.C) Absolute Value Du...