? preliminary rf monolithics, inc. phone: (972) 233-2903 fax: (972) 387-8148 e-mail: info@rfm.com page 1 of 3 rfm europe phone: 44 1963 251383 fax: 44 1963 251510 http://www.rfm.com ?1999 by rf monolithics, inc. the stylized rfm logo are registered trademarks of rf monolithics, inc. RF3355C-071907 electrical characteristics characteristic sym notes minimum typical maximum units center frequency at 25c absolute frequency f c 1, 2 390.0 mhz tolerance from 390.0 mhz d f c 1, 2 100 khz minimum insertion loss 389.82 -390.22 mhz il min 1 2.0 4.0 db passband (relative to il min ) 389.77 -390.2 1 1.5 3.0 db 389.71 -390.26 2.0 6.0 passband (relative to il min ) bw 3 1 500 1100 khz attenuation: (relative to il min ) 0 - 345 mhz 1 45 50 db 345 - 370 mhz 40 45 370 - 388.94 mhz 15 25 391.5 - 410 mhz 8 13 410 - 475 mhz 35 45 475 - 1000 mhz 45 55 impedance at f c ; input z in =r in //c in 1 344 w // 4.9pf output z out =r out //c out 1 344 w // 4.9pf turnover to 3, 4 25 c frequency aging absolute value during the first year 3, 4 10 ppm/yr typical lid symbolization (in addition to lot and/or date codes) 736 // ywws standard reel quantity reel size 7 inch 500 pieces/reel reel size 13 inch 3000 pieces/reel ? ideal front-end filter for wireless receivers ? low-loss, coupled-resonator quartz design ? simple external impedance matching ? complies with directive 2002/95/ec (rohs) the RF3355C is a low-loss, compact, and economical surface-acoustic-wave (saw) filter designed to pro- vide front-end selectivity in 390mhz receivers. receiver designs using this filter include superhet with 10.7mhz or 500khz if, direct conversion and superregen. typical applications of these receivers are wire- less remote-control and security devices. this coupled-resonator filter (crf) uses selective null placement to provide suppression, typically greater than 40db, of the lo and image spurious responses of superhet receivers with 10.7mhz if. rfm?s ad- vanced saw design and fabrication technology is utilized to achieve high performance and very low loss with simple external impedance matching. 390.0 mhz saw filter RF3355C sm5050-8 case 5 x 5 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 and passband shape 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. 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 prolonge d 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. pb
390.0 mhz saw filter rf monolithics, inc. phone: (972) 233-2903 fax: (972) 387-8148 e-mail: info@rfm.com page 2 of 3 rfm europe phone: 44 1963 251383 fax: 44 1963 251510 http://www.rfm.com ?1999 by rf monolithics, inc. the stylized rfm logo are registered trademarks of rf monolithics, inc. RF3355C-071907 ch1 s21 log 2 db/ ref -4 db ch1 center 390 . 000 000 mhz span 2 . 000 000 mhz cor prm ch2 s21 log 10 db/ ref -15 db ch2 center 410 . 000 000 mhz span 130 . 000 000 mhz cor prm 9 may 2007 09:19:51 1 2 3 4 1 : -1 . 9298 db 390 . 240 000 mhz max ch1 markers bw : . 752378 mhz cent : 390 . 068623 mhz q : 518 . 45 1_ loss : -1 . 9298 db ch1 pass 1 1 : -1 . 9994 db 390 . 337 500 mhz max ch2 pass RF3355C dev11 RF3355C fix. full resp ch1 s11 1 u fs center 390 . 000 000 mhz span 2 . 000 000 mhz cor prm ch2 s22 1 u fs cor prm 9 may 2007 09:20:08 1 1 : 50 . 514 4 . 0898 1 . 6690 nh 390 . 000 000 mhz 1 1 : 50 . 689 6 . 7070 2 . 7371 nh 390 . 000 000 mhz RF3355C dev11 RF3355C fix. full full
390.0 mhz saw filter rf monolithics, inc. phone: (972) 233-2903 fax: (972) 387-8148 e-mail: info@rfm.com page 3 of 3 rfm europe phone: 44 1963 251383 fax: 44 1963 251510 http://www.rfm.com ?1999 by rf monolithics, inc. the stylized rfm logo are registered trademarks of rf monolithics, inc. RF3355C-071907 1 2 3 8 50 w output 7 6 5 4 9pf 9pf 44nh 44nh 50 w absolute maximum ratings rating value units input power level 10 dbm dc voltage 12 vdc storage temperature -45 to +85 c operating temperature -35 to +85 c soldering temperature (10 seconds / 5 cycles max.) 260 c pin connection 1 input 2 input ground 3 to be grounded 4 case ground 5 output 6 output ground 7 to be grounded 8 case ground matching circuit to 50 w electrical connections a 1 2 3 b 7 6 5 4 c d 7 6 5 4 e f g 1 2 3 8 8 dimension mm inches min nom max min nom max a 4.8 5.0 5.2 0.189 0.197 0.205 b 4.8 5.0 5.2 0.189 0.197 0.205 c 1.7 0.067 d 2.08 0.082 e 1.17 0.046 f 0.64 0.025 g 2.39 2.54 2.69 0.094 0.100 0.106 case dimensions
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