RFM products are now Murata products. RF1404C • • • • 433.92 MHz SAW Filter 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 The RF1404C 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. Characteristic Center Frequency at 25 °C Absolute Frequency Minimum Insertion Loss, 433.800 - 434.120 MHz Passband (relative to ILmin) Sym Notes fC 1, 2 433.920 ILmin 1 2.4 433.740 - 434.010 MHz Attenuation: (relative to ILmin) BW3 1 650 700 45 48 414 - 427.5 MHz 40 43 15 19 10 14 1 442 - 550 MHz 35 38 550 - 1000 MHz 45 50 ZIN = RIN ||CIN ZOUT = ROUT || COUT Absolute Value During the First Year 1 227Ω || 3.3 pF 1 227Ω || 3.3 pF Standard Reel Quantity dB dB kHz dB 3, 4 25 3, 4 ≤10 ppm/yr Typical Lid Symbolization (in addition to Lot and/or Date Codes) Units MHz 4.0 6.0 427.5 - 432.92 MHz Turnover To Frequency Aging Maximum 3.0 10 - 414 MHz 434.92 - 442 MHz Impedance at fC: Typical 1 433.680 - 434.160 MHz Passband (relative to ILmin) Minimum SM5050-8 Case 5x5 °C 499 Reel Size 7 Inch 500 Pieces/Reel Reel Size 13 Inch 3000 Pieces/Reel CAUTION: Electrostatic Sensitive Device. Observe precautions for handling. NOTES: 1. 2. 3. 4. 5. 6. 7. 8. Unless noted otherwise, all measurements are made with the filter installed in the specified test fixture which is connected to a 50 Ω test system with VSWR ≤ 1.2:1. The test fixture L and C are adjusted for minimum insertion loss at the filter center frequency, fc. Note that insertion loss and bandwidth and passband shape are dependent on the impedance matching component values and quality. The frequency fc is defined as the midpoint between the 3 dB frequencies. Where noted specifications apply over the entire specified operating temperature range. The turnover temperature, TO, is the temperature of maximum (or turnover) frequency, fo. The nominal frequency at any case temperature, Tc, may be calculated from: f = fo [1 - FTC (To - Tc)2]. Frequency aging is the change in fc with time and is specified at +65 °C or less. Aging may exceed the specification for prolonged temperatures above +65 °C. Typically, aging is greatest the first year after manufacture, decreasing significantly in subsequent years. The design, manufacturing process, and specifications of this device are subject to change without notice. One or more of the following U.S. Patents apply: 4,54,488, 4,616,197, and others pending. All equipment designs utilizing this product must be approved by the appropriate government agency prior to manufacture or sale. ©2010-2015 by Murata Electronics N.A., Inc. RF1404C (R) 4/6/15 Page 1 of 3 www.murata.com Typical Filter Response Typical filter responses are shown below. The actual response is dependent on external impedance matching and circuit layout. ©2010-2015 by Murata Electronics N.A., Inc. RF1404C (R) 4/6/15 Page 2 of 3 www.murata.com Rating Value Units Input Power Level 10 dBm DC Voltage 12 VDC Storage Temperature -40 to +120 °C Operating Temperature -40 to +105 °C 260 °C Soldering Temperature, 10 seconds/5 cycles maximum Electrical Connections Pin Connection 1 Input Ground 2 Input 3 to be Grounded 4 Case Ground 5 Output 6 Output Ground 7 to be Grounded 8 Case Ground A E C B 8 8 1 7 D 7 1 2 6 6 2 3 5 5 3 G 4 4 F Case Dimensions Matching Circuit to 50Ω mm Dimension 7 A B C D E F G 1 36 nH 6 36 nH 5 Output 8 4 Input 2 3 5.1 pF 5.1 pF Inches Min Nom Max Min Nom Max 4.8 4.8 5.0 5.0 5.2 5.2 1.7 0.189 0.189 0.197 0.197 0.205 0.205 0.067 2.39 2.08 1.17 0.64 2.54 0.094 0.082 0.046 0.025 0.100 2.69 0.106 Alternate Matching Circuit to 50Ω 7 6 36 nH 36 nH 5 Output 1 8 4 2 3 36 nH 39 nH Input 5.1 pF 5.1 pF ©2010-2015 by Murata Electronics N.A., Inc. RF1404C (R) 4/6/15 Page 3 of 3 www.murata.com