RF3336C • • • • 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 868.35 MHz SAW Filter The RF3336C is a low-loss, compact, and economical surface-acoustic-wave (SAW) filter designed to provide front-end selectivity in 868.35 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, in Germany under FTZ 17 TR 2100, in the United Kingdom under DTI MPT 1340 (for automotive only), in France under PTT Specifications ST/PAA/TPA/AGH/1542, and in Scandinavia. This coupled-resonator filter (CRF) uses selective null placement to provide suppression, typically greater than 30 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 @ 25°C Sym Absolute Frequency Tolerance from 868.35 MHz Insertion Loss 3 dB Bandwidth Rejection fC Notes 1, 2 IL 1 BW3 1, 2 at fc - 21.4 MHz (Image) 1 Units MHz ±125 kHz 4.0 dB 500 700 800 kHz 30 40 15 30 dB 80 Operating Case Temp. TC -40 Turnover Temperature TO 15 Turnover Frequency Maximum 2.6 Ultimate Temperature Typical 868.35 ∆fC at fc - 10.7 MHz (LO) Minimum fO 3, 4 25 +85 °C 40 °C fc MHz 0.032 ppm/°C2 <±10 ppm/yr Freq. Temp. Coefficient FTC Frequency Aging Absolute Value during the First Year |fA| External Impedance Input Series Inductance L1 3.3 nH Input Shunt Inductance L2 15 nH Output Series Inductance L3 10 nH Output Shunt Inductance C1 5.1 pF Standard Reel Quantity 5 1 Reel Size 7 inch 500 Pieces/Reel Reel Size 13 inch 3000 Pieces/Reel Lid Symbolization (Y=year, WW=week, S=shift) 673//YWWS 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 3dB 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. www.RFM.com E-mail: [email protected] ©2008 by RF Monolithics, Inc. Page 1 of 4 RF3336C - 3/21/08 Absolute Maximum Ratings Rating Value Units Input Power Level DC Voltage Storage Temperature Soldering Temperature 10 dBm 12 VDC -40 to +85 °C 260 °C (10 seconds / 5 cycles max.) Electrical Connections Pin Connection 1 Input 2 Ground 3 Output Return 4 Case Ground 5 Output 6 Ground 7 Input Return 8 Case Ground A 8 1 7 D 7 1 2 6 6 2 3 5 5 3 G 4 4 F Matching Circuit to 50Ω Case Dimensions 1 7 6 10nH 5 www.RFM.com E-mail: [email protected] ©2008 by RF Monolithics, Inc. 8 4 2 3 Input 1.0nH mm Dimension 15.0nH Output E C B 8 A B C D E F G 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 Page 2 of 4 RF3336C - 3/21/08 www.RFM.com E-mail: [email protected] ©2008 by RF Monolithics, Inc. Page 3 of 4 RF3336C - 3/21/08 www.RFM.com E-mail: [email protected] ©2008 by RF Monolithics, Inc. Page 4 of 4 RF3336C - 3/21/08