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| (R) RF1181D 916.5 MHz SAW Filter * * * * Ideal Front-End Filter for 916.5 MHz Wireless Receivers Low-Loss, Coupled-Resonator Quartz Design Simple External Impedance Matching Complies with Directive 2002/95/EC (RoHS) Pb The RF1181D is a low-loss, compact, and economical surface-acoustic-wave (SAW) filter designed to provide front-end selectivity in 916.5 MHz receivers. Receiver designs using this filter include superhet with 10.7 MHz IF, direct conversion and superregen. Typical applications of these receivers are wireless remotecontrol and security, data telemetry, and meter reading devices operating in the USA under FCC Part 15 and in Canada under DoC RSS-210. 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. SM3838-8 Case 3.8 x 3.8 Electrical Characteristics Characteristic Center Frequency at 25C Insertion Loss 3 dB Bandwidth Rejection (Attenuation: relative to Min IL:) 10 to 895 MHz 895 to 906 MHz 906 to 910 MHz 922 to 925 MHz 925 to 933 MHz 933 to 940 MHz 940 to 1100 MHz Temperature Frequency Aging Impedance @ fC Standard Reel Quantity Standard Reel Quantity Freq. Temp. Coefficient Absolute Value during the First Year Input ZIN = RIN/CIN Output ZOUT = ROUT/COUT 7 Inch Reel 13 Inch Reel Lid Symbolization (in addition to Lot and/or Date Codes) 9 FTC |fA| ZIN ZOUT 3, 4 5 1 1, 3 Absolute Frequency Tolerance from 916.50 MHz Sym fc fc IL BW3 Notes 1, 2, 3 1, 3 1, 3 500 40 30 25 35 14 30 40 Minimum Typical 916.5 2.5 600 50 35 30 40 18 35 45 0.032 10 37 // 1.6pF 25 // 1.8pF 435 // YWWS 500 Pieces/Reel 3000 Pieces/Reel ppm/C2 ppm/yr dB 4.0 900 Maximum Units MHz kHz dB kHz 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 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 of -40 to 90C. 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 +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. 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. 2. 3. 4. 5. 6. 7. 8. 9. RF Monolithics, Inc. Phone: (972) 233-2903 Fax: (972) 387-8148 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 RF1181D-081704 Page 1 of 3 916.5 MHz SAW Filter RF Monolithics, Inc. Phone: (972) 233-2903 Fax: (972) 387-8148 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 RF1181D-081704 Page 2 of 3 916.5 MHz Absolute Maximum Ratings Rating Input Power Level DC Voltage Storage Temperature Operable Temperature Range Soldering Temperature SAW Filter Value 10 12 -40 to +125 -40 to +125 (10 seconds / 5 cycles max.) 260 Units dBm VDC C C C Electrical Connections Pin 1 2 3 4 5 6 7 8 Connection Input Ground Input Ground Case Ground Output Ground Output Ground Case Ground 3 A 1 2 B 8 C E 8 H7 6 5 4 D F 7 6 5 1 2 3 G 4 Matching Circuit to 50 Case Dimensions Dimension 7 12 nH Output 1 12 nH 6 5 8 4 2 3 Input A B C D E F G H Min 3.6 3.6 1.00 0.95 0.90 0.50 2.39 1.40 mm Nom 3.8 3.8 1.20 1.10 1.0 0.6 2.54 1.75 Max 4.0 4.0 1.40 1.25 1.10 0.70 2.69 2.05 Min 0.14 0.14 0.04 0.037 0.035 0.020 0.090 0.055 Inches Nom 0.15 0.15 0.05 0.043 0.04 0.024 0.100 0.069 Max 0.16 0.16 0.055 0.05 0.043 0.028 0.110 0.080 OPTIONAL Electrical Connections Pin 1 2 3 4 5 6 7 8 Connection Input Input Ground Ground Case Ground Output Output Ground Ground Case Ground Matching Circuit to 50 12 nH 7 6 12 nH Output 1 8 4 2 3 Input 5 RF Monolithics, Inc. Phone: (972) 233-2903 Fax: (972) 387-8148 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 RF1181D-081704 Page 3 of 3 |
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