RF1432C

RF1432C Ideal Front-End Filter for European Wireless Receivers Low-Loss, Coupled-Resonator Quartz Design Simple External Impedance Matching Complies with Directive 2002/95/EC (RoHS) Pb 319.500 MHz SAW Filter The RF1432C is a low-loss, compact and economical surface-acoustic-wave (SAW) filter designed to provide front-end selectivity in 319.500 MHz receivers. Recevier designs using this filter include superhet with 10.7 MHz or 500 kHz IF, direct conversion and superregen. 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 excellent frequency stability over a wide temperature range. SM5050-8 Case 5x5 Electrical Characteristics Characteristic Center Frequency at 25°C Insertion Loss 3 dB Bandwidth Rejection at fc - 21.4 MHz (Image) at fc - 10.7 MHz (LO) Ultimate www.DataSheet.net/ Sym Absolute Frequency Tolerance from 319.500 MHz fC ∆fC IL BW3 Notes 1, 2 1 1, 2 1 Minimum 319.420 Typical Maximum 319.580 ±80 Units MHz kHz dB kHz dB 1.8 500 40 40 -40 25 40 fC 0.032 ≤10 3.97kΩ // 4.37pF 2.56kΩ // 4.27pF 621 // DATECODE 600 50 50 80 2.8 800 Temperature Operating Case Temperature Turnover Temperature Turnover Frequency Frequenc...