RF1404C ® • • • • Ideal Front-End Filter for European Wireless Receivers Low-Loss, Coupled-Resonator Quartz Design Simple External Impedance Matching Pb Complies with Directive 2002/95/EC (RoHS) 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. 433.92 MHz SAW Filter 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. SM5050-8 Case 5x5 Electrical Characteristics 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 BW3 Attenuation: (relative to ILmin) 1 650 700 45 48 40 43 427.5 - 432.92 MHz 15 19 10 14 442 - 550 MHz 35 38 550 - 1000 MHz 45 Output ZOUT=ROUT//COUT Turnover To 1 Absolute Value During the First Year 227Ω // 3.3pF 1 227Ω // 3.3pF 3, 4 Lid Symbolization (in addition to Lot and/or Date Codes) dB dB kHz dB 50 1 3, 4 Units MHz 4.0 6.0 10 - 414 MHz Impedance at FC ; Input ZIN=RIN//CIN Standard Reel Quantity Maximum 3.0 414 - 427.5 MHz 434.92 - 442 MHz Frequency Aging Typical 1 433.680 - 434.160 Passband (relative to ILmin) Minimum 25 °C ≤10 ppm/yr Typical 499 // YWWS Reel Size 7 Inch 500 Pieces/Reel Reel Size 13 Inch 3000 Pieces/Reel CAUTION: Electrostatic Sensitive Device. Observe precautions for handling. Notes: 1. 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. 2. The frequency fc is defined as the midpoint between the 3dB frequencies. 3. Where noted specifications apply over the entire specified operating temperature range. 4. The turnover temperature, TO, is the temperature of maximum (or turnover) frequency, fo. The nominal frequency at any case temperature, Tc, may 5. 6. 7. 8. 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. RF Monolithics, Inc. Phone: (972) 233-2903 Fax: (972) 387-8148 RFM Europe Phone: 44 1963 251383 Fax: 44 1963 251510 ©1999 by RF Monolithics, Inc. The stylized RFM logo are registered trademarks of RF Monolithics, Inc. E-mail: [email protected] http://www.rfm.com RF1404C-082603 Page 1 of 3 433.92 MHz SAW Filter Typical Filter Response Typical filter responses are shown below. The actual response is dependent on external impedance matching and circuit layout. RF Monolithics, Inc. Phone: (972) 233-2903 Fax: (972) 387-8148 RFM Europe Phone: 44 1963 251383 Fax: 44 1963 251510 ©1999 by RF Monolithics, Inc. The stylized RFM logo are registered trademarks of RF Monolithics, Inc. E-mail: [email protected] http://www.rfm.com RF1404C-082603 Page 2 of 3 433.92 MHz SAW Filter Absolute Maximum Ratings 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 max.) 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 Dimension A B C D E F G Min 4.8 4.8 mm Nom 5.0 5.0 2.39 2.08 1.17 0.64 2.54 Max 5.2 5.2 1.7 2.69 Min 0.189 0.189 Inches Nom 0.197 0.197 0.094 0.082 0.046 0.025 0.100 Max 0.205 0.205 0.067 0.106 Matching Circuit to 50Ω Ω 7 1 36 nH 6 36 nH 5 Output 8 4 Input 2 3 5.1 pF 5.1 pF RF Monolithics, Inc. Phone: (972) 233-2903 Fax: (972) 387-8148 RFM Europe Phone: 44 1963 251383 Fax: 44 1963 251510 ©1999 by RF Monolithics, Inc. The stylized RFM logo are registered trademarks of RF Monolithics, Inc. E-mail: [email protected] http://www.rfm.com RF1404C-082603 Page 3 of 3