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| (R) RF1210D 303.825 MHz SAW Filter * * * * Ideal Front-End Filter for Domestic Wireless Receivers Low-Loss, Coupled-Resonator Quartz Design Simple External Impedance Matching Complies with Directive 2002/95/EC (RoHS) Pb The RF1210D is a low-loss, compact, and economical surface-acoustic-wave (SAW) filter designed to provide front-end selectivity in 303.825 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 (especially for automotive keyless entry) operating in the USA under FCC Part 15, in Canada under RSS-210, and in Italy 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. SM3838-8 Case 3.8 x 3.8 Electrical Characteristics Characteristic Center Frequency @ 25C Passband (relative to ILmin) Pass Bandwidth (relative to ILmin) Attenuatioin: (relative to ILmin) 10~260 MHz 260~297 MHz 297~302.5 MHz 304.8~320 MHz 320~400 MHz 400~1000 MHz Frequency Temperature Coefficient Frequency Aging Impedance @ FC Absolute Value during the First Year Input ZIN=RINllCIN Output ZOUT=ROUTllCOUT Lid Symbolization (Y=year WW=week D=day of week) Standard Reel Quantity Reel Size 7 Inch Reel Size 13 Inch FTC |fA| ZIN ZOUT 1 1 Absolute Frequency 303.595 - 304.025 303.535 - 304.085 BW3 Sym fc ILmin Notes 1, 2, 3 1, 3 1 1, 3 500 45 35 11.5 14 37 45 Minimum Typical 303.825 1.6 1.0 1.5 650 50 40 15 18 40 50 0.032 10 22.6 ll 2.6pf 21.5 ll 3.1pf 488 // YWWS 500 Pieces/Reel 3000 Pieces/Reel ppm/C2 ppm/yr dB 2.5 3.0 6.0 800 Maximum Units MHz dB dB kHz Minimum I.L. (303.620~303.980 MHz) 9 CAUTION: Electrostatic Sensitive Device. Observe precautions for handling. Notes: 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. 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 -40C to +90C. 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. 9. Tape and Reel Standard Per ANSI/EIA 481. 10. This product complies with directive 2002/95/EC of the European Parlament and of the Council of 27 January 2003 on the restriction of the use of certain hazardous substances in electrical and electronic equipment. 1. 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 RF1210D-083105 Page 1 of 2 303.825 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 Input Ground Ground Case Ground Output Output Ground Ground Case Ground 4 D 4 F A 1 2 3 7 6 5 B 8 C E 8 H7 6 5 1 2 3 G Matching Circuit to 50 100nH Case Dimensions Input 7 6 100nH Output 10pf 1 8 4 2 3 0.2pf Dimension A B C D E F G H 5 Optional Electrical Connections Pin 1 2 3 4 5 6 7 8 Connection Input Ground Input Ground Case Ground Output Ground Output Ground Case Ground Output 5.6pf 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 Matching Circuit to 50 7 120nH 1 91nH 6 5 8 4 2 6.8pf Input 3 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 RF1210D-083105 Page 2 of 2 |
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