RF3701E • • • • 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 433.92 MHz SAW Filter The RF3701E is a low-loss, compact, and economical surface-acoustic-wave (SAW) filter designed to provide front-end RF selectivity in 433.92 MHz receivers. Receiver designs using this filter include superheterodyne with 10.7 MHz or lower intermediate frequencies, plus direct conversion and superregeneratives. SM3030-8 Case 3.0 x 3.0 Electrical Characteristics Characteristic Center Frequency @ 25°C Sym Notes fC 1, 2, 3 Insertion Loss ILMIN 1, 3 3 dB Bandwidth BW3 1, 2, 3 Minimum 650 MHz 2.5 3.2 dB 850 kHz 0.5 1.0 dBP-P 10 to 414 MHz 44 47 42 45 424 to 431 MHz 27 30 431 to 432 MHz 17 20 14 17 434.92 to 442 MHz 13 16 442 to 550 MHz 33 37 550 to 1000 MHz 47 1, 3 Units 750 414 to 424 MHz 432 to 433 MHz Maximum 433.92 Passband Ripple, 433.72 to 434.12 MHz Attenuation relative to ILMIN Typical dB 50 Temperature Freq. Temp. Coefficient FTC 3, 4 0.032 ppm/°C2 Frequency Aging Absolute Value during the First Year |fA| 5 <10 ppm/yr Input ZIN = RIN || CIN ZIN Impedance @ fC Output ZOUT = ROUT || COUT ZOUT 1 Lid Symbolization (in addition to Lot and/or Date Codes) Standard Reel Quantity Reel Size 7 Inch Reel Size 13 Inch 3530 Ω || 2.42 pF 3330 Ω || 2.42 pF 940 // YWWS 9 500 Pieces/Reel 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 of -40 to 90°C. 4. 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: 5. 6. 7. 8. 9. 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. 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. Tape and Reel Standard for ANSI / EIA 481. www.RFM.com E-mail: [email protected] ©2009-2010 by RF Monolithics, Inc. Page 1 of 2 RF3701E - 12/14/10 Absolute Maximum Ratings Characteristic Value Units Input Power Level 10 dBm DC Voltage 12 VDC Storage Temperature -40 to +125 °C Operable Temperature Range -40 to +125 °C 260 °C Soldering Temperature (10 seconds / 5 cycles maximum) SM3030-8 Case 8-Terminal Ceramic Surface-Mount Case 3.0 x 3.0 mm Nominal Footprint Electrical Connections Pin 1 2 3 4 5 6 7 8 7 A 6 6 6 2 3 5 5 3 G 5 4 4 4 F D Case Dimensions A B C D E F G H 8 2 n H 2 8 1 2 1 8 2 n H 7 H Dimension O u tp u t 8 1 Matching Circuit to 50 Ω 7 E C B 8 Connection Input Ground Input Ground Case Ground Output Ground Output Ground Case Ground In p u t 3 Min 2.87 2.87 1.14 0.79 0.62 0.47 0.47 1.07 mm Nom 3.0 3.0 1.27 0.92 0.75 0.60 0.60 1.20 Max 3.13 3.13 1.40 1.05 0.88 0.73 0.73 1.33 Min 0.113 0.113 0.045 0.031 0.024 0.018 0.018 0.042 Inches Nom 0.118 0.118 0.050 0.036 0.029 0.024 0.024 0.047 Max 0.123 0.123 0.055 0.041 0.034 0.029 0.029 0.052 Case Materials Materials .96 mm 0.3 to 1.0 µm Gold over 1.27 to 8.89 µm Nickel Lid Plating 2.0 to 3.0 µm Nickel Body Al2O3 Ceramic Pb Free .23 mm .38 mm .81 mm 3.20 mm 1.39 mm Solder Pad Plating .81 mm PCB Footprint Dimensions www.RFM.com E-mail: [email protected] ©2009-2010 by RF Monolithics, Inc. Page 2 of 2 RF3701E - 12/14/10