www.rfm.com e-mail: info@rfm.com page 1 of 2 ?2008 by rf monolithics, inc. RF3319D - 3/21/08 electrical characteristics characteristic sym notes minimum typical maximum units center frequency @ 25c absolute frequency f c 1, 2, 3 868.95 mhz insertion loss il 1 2.2 4.0 db 3 db bandwidth bw 3 1, 3 500 650 900 khz attenuation: (relative to ilmin) 10 - 700 mhz 1, 3 50 55 db 700 - 830 mhz 40 45 830 - 850 mhz 35 40 850 - 865 mhz 20 24 871 - 878 mhz 21 30 878 - 883 mhz 15 20 883 - 900 mhz 28 35 900 - 1000 mhz 40 45 temperature freq. temp. coefficient ftc 3, 4 0.032 ppm/ c 2 frequency aging absolute value during the first year |fa| 5 <10 ppm/yr impedance @ f c input z in = r in /c in z in 1 28.8 w // 1.93pf output z out = r out /c out z out 26.9 w // 2.2pf lid symbolization (in addition to lot and/or date codes) 668 // ywws standard reel quantity 7 inch reel 9 500 pieces/reel standard reel quantity 13 inch reel 3000 pieces/reel ? 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) the RF3319D is a low-loss, compact, and economical surface-acoustic-wave (saw) filter designed to provide front-end selectivity in 868.95 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 40 db, of the lo and image spurious responses of superhet receivers with 10.7 mhz if. rfms advanced saw design and fabrication technology is utilized to achieve high performance and very low loss with simple external impedance matching (not included). 868.95 mhz saw filter RF3319D 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 w test system with vswr 1.2:1. the test fixture l and c are adjusted for minimum insertion loss at the filter center frequency, f c . note that insertion loss and band- width are dependent on the impedance matching component values and quality. 2. the frequency f c is defined as the midpoint between the 3db frequencies. 3. where noted, specifications apply over the entire specified operating temperature range of -40 to 90c. 4. the turnover temperature, t o , is the temperature of maximum (or turnover) frequency, f o . the nominal frequency at any case temperature, t c , may be calculated from: f = f o [1 - ftc (t o -t c ) 2 ]. 5. frequency aging is the change in fc with time and is specified at +65c or less. aging may exceed the specification for prolo nged 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 sa le. 9. tape and reel standard for ansi / eia 481. sm3838-8 case 3.8 x 3.8 pb
www.rfm.com e-mail: info@rfm.com page 2 of 2 ?2008 by rf monolithics, inc. RF3319D - 3/21/08 absolute maximum ratings rating value units input power level 10 dbm dc voltage 12 vdc storage temperature -40 to +125 c operable temperature range -40 to +125 c soldering temperature (10 seconds / 5 cycles max.) 260 c pin connection 1 input ground 2 input 3n/c 4 case ground 5 output ground 6 output 7 case ground 8 case ground matching circuit to 50 w electrical connections a 1 2 3 b 7 6 5 4 c h 7 6 5 4 e f g 1 2 3 8 8 d matching circuit to 50 w pin connection 1 input 2 input ground 3n/c 4 case ground 5 output 6 output ground 7 case ground 8 case ground electrical connections matching circuit to 50 w optional 7 6 5 4 1 2 3 8 input output 10 nh 10 nh 7 6 5 4 1 2 3 8 output 10 nh input 10 nh case dimensions dimension mm inches min nom max min nom max a 3.6 3.8 4.0 0.14 0.15 0.16 b 3.6 3.8 4.0 0.14 0.15 0.16 c 1.00 1.20 1.40 0.04 0.05 0.055 d 0.95 1.10 1.25 0.033 0.043 0.05 e 0.90 1.0 1.10 0.035 0.04 0.043 f 0.50 0.6 0.70 0.020 0.024 0.028 g 2.39 2.54 2.69 0.090 0.100 0.110 h 1.40 1.75 2.05 0.055 0.069 0.080
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