RF3417D

RF3417D Ideal Front-End Filter for Wireless Receivers Low-Loss, Coupled-Resonator Quartz Design Simple External Impedance Matching Complies with Directive 2002/95/EC (RoHS) Pb 315.0 MHz SAW Filter The RF3417D 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 remotecontrol 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. SM3838-8 Case 3.8 x 3.8 Typical 315.00 1.6 0.4 Electrical Characteristics, -40°C to +90°C Per Note 3 Below Characteristic Center Frequency at 25°C Insertion Loss Passband Ripple Relative to ILMIN, Fc ±200 kHz 3 dB Bandwidth Rejection Relative to ILMIN 10 - 295 MHz 295 - 305 MHz 305 - 310 MHz 310 - 313 MHz 313 - 314 MHz 316 - 320 MHz 320 - 325 MHz 325 - 335 MHz 335 - 600 MHz 600 - 1000 MHz Temperature Frequency Aging Impedance @ fc Freq. Temp. Coefficient Abso...