RF1283

www.DataSheet4U.com ® RF1283 433.92 MHz SAW Filter Ideal Front-End Filter for European Wireless Receivers Low-Loss, Coupled-Resonator Quartz Design Simple External Impedance Matching Rugged TO39 Hermetic Package Complies with Directive 2002/95/EC (RoHS) Pb The RF1283 is a low-loss, compact, and economical surface-acoustic-wave (SAW) filter designed to provide front-end selectivity in 433.92 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 operating in Europe under ETSI I-ETS 300 220. 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 (not included). Quartz construction provides execellent frequency stablility over a wide temperature range. TO39-3 Case Electrical Characteristics Center Frequency at 25°C Insertion Loss 3 dB Bandwidth Rejection at fC - 21.4 MHz (Image) at fC - 10.7 MHz (LO) Ultimate Temperature Operating Case Temp. Turnover Temperature Turnover Frequency Freq. Temp. Coefficient Frequency Aging External Impedance Absolute Value during the First Year Series Inductance Shunt Capacitance L...