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| (R) RF1171B 418.0 MHz SAW Filter * * * * * Ideal Front-End Filter for Wireless Receiver in the US and UK Low-Loss, Coupled-Resonator Quartz Design Simple External Impedance Matching Surface-Mount Ceramic Case with 52 mm2 Footprint Complies with Directive 2002/95/EC (RoHS) The RF1171B is a low-loss, compact, and economical surface-acoustic-wave (SAW) filter designed to provide front-end selectivity in 418.0 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 the USA under FCC Part 15. 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). Our new patent pending solder seal process utilizes a Faraday shield lid, which improves out of band rejection. SM8558-8 Case Electrical Characteristics Characteristic Nominal Frequency Tolerance from 418.0 MHz Insertion Loss 3 dB Bandwidth Rejection at fC - 21.4 MHz (Image) at fC - 10.7 MHz (LO) Ultimate Temperature Operating Case Temp. Turnover Temperature Turnover Frequency Freq. Temp. Coefficient Frequency Aging External Impedance Absolute Value during the First Year Series Inductance Shunt Capacitance Lid Symbolization (in addition to Lot and/or Date Codes) TC TO fO FTC |fA| L C 5 1 3, 4 -40 15 25 fc 0.032 10 TBD TBD RFM RF1171B 1 Sym fc fc IL BW3 Notes 1, 2 1 1, 2 500 40 15 Minimum Typical 418.0 80 3.0 600 50 30 80 Maximum Units MHz dB dB kHz dB 5.0 800 +85 40 C C MHz ppm/C2 ppm/yr nH pF 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 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, 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. Unless noted otherwise, 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 be calculated from: f = fo [1 - FTC (To - Tc)2]. 5. Frequency aging is the change in fc with time and is specified at +65C or less. Aging may exceed the specification for prolonged temperatures above +65C. Typically, aging is greatest the first year after manufacture, decreasing significantly in subsequent years. 6. The design, manufacturing process, and specifications of this device are subject to change without notice. 7. One or more of the following U.S. Patents apply: 4,54,488, 4,616,197, and others pending. 8. 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) 387-9148 RFM Europe Phone: 44 1963 251383 Fax: 44 1963 251510 (c)1999 by RF Monolithics, Inc. The stylized RFM logo are registered trademarks of RF Monolithics, Inc. E-mail: info@rfm.com http://www.rfm.com RF1171B-082201 Page 1 of 2 418.0 MHz Absolute Maximum Ratings Rating Incident RF Power SAW Filter Value +13 30 -45 to +85 (10 seconds / 5 cycles max.) 260 Units dBm VDC C C DC Voltage between any 2 pins (Observe ESD Precautions) Case Temperature5 Soldering Temperature Typical Filter Response Typical filter responses are shown below. The actual response is dependent on external impedance matching and circuit layout. Illustrated frequencies and minimum rejection for LO and IMAGE are shown only for superhet receivers with 10.7 MHz IF. Electrical Connections Pin 1 2 3 4 5 6 7 8 Connection Input Ground Output Return Case Ground Output Ground Input Return Case Ground Case Design Dimensions A Millimeters Min Max 8.71 6.04 2.03 0.79 Nominal 1.14 Nominal 1.98 Nominal 0.79 Nominal 6.91 4.24 0.81 2.54 Nominal 1.91 Nominal Min Inches Max 0.343 0.238 0.080 0.031 Nominal 0.045 Nominal 0.078 Nominal 0.031 Nominal 0.040 0.167 0.032 0.100 Nominal 0.075 Nominal Typical Demonstration Circuit B C D E F G H K M N P RF Monolithics, Inc. Phone: (972) 233-2903 Fax: (972) 387-9148 RFM Europe Phone: 44 1963 251383 Fax: 44 1963 251510 (c)1999 by RF Monolithics, Inc. The stylized RFM logo are registered trademarks of RF Monolithics, Inc. E-mail: info@rfm.com http://www.rfm.com RF1171B-082201 Page 2 of 2 |
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