www.rfm.com e-mail: info@rfm.com page 1 of 2 ?2009-2010 by rf monolithics, inc. RF3701E - 12/14/10 ? 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 RF3701E is a low-loss, compact, and economical surface-acoustic-wave (saw) filter designed to provide front-end rf selectivity in 433.92 mhz receivers. receiver designs using this filter include superheterodyne with 10.7 mhz or lower intermediate frequencies, plus direct conversion and superregeneratives. 433.92 mhz saw filter RF3701E 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, f c . note that insertion loss and bandwidth 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 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 +65 c or less. aging may exceed the specification for prol onged temperatures above +65 c. 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. 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. sm3030-8 case 3.0 x 3.0 pb electrical characteristics characteristic sym notes minimum typical maximum units center frequency @ 25c f c 1, 2, 3 433.92 mhz insertion loss il min 1, 3 2.5 3.2 db 3 db bandwidth bw 3 1, 2, 3 650 750 850 khz passband ripple, 433.72 to 434.12 mhz 0.5 1.0 db p-p attenuation relative to il min 10 to 414 mhz 1, 3 44 47 db 414 to 424 mhz 42 45 424 to 431 mhz 27 30 431 to 432 mhz 17 20 432 to 433 mhz 14 17 434.92 to 442 mhz 13 16 442 to 550 mhz 33 37 550 to 1000 mhz 47 50 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 3530 ? || 2.42 pf output z out = r out || c out z out 3330 ? || 2.42 pf lid symbolization (in addition to lot and/or date codes) 940 // ywws standard reel quantity reel size 7 inch 9 500 pieces/reel reel size 13 inch 3000 pieces/reel
www.rfm.com e-mail: info@rfm.com page 2 of 2 ?2009-2010 by rf monolithics, inc. RF3701E - 12/14/10 absolute maximum ratings characteristic 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 maximum) 260 c case dimensions case materials dimension mm inches min nom max min nom max a 2.87 3.0 3.13 0.113 0.118 0.123 b 2.87 3.0 3.13 0.113 0.118 0.123 c 1.14 1.27 1.40 0.045 0.050 0.055 d 0.79 0.92 1.05 0.031 0.036 0.041 e 0.62 0.75 0.88 0.024 0.029 0.034 f 0.47 0.60 0.73 0.018 0.024 0.029 g 0.47 0.60 0.73 0.018 0.024 0.029 h 1.07 1.20 1.33 0.042 0.047 0.052 materials solder pad plating 0.3 to 1.0 m gold over 1.27 to 8.89 m nickel lid plating 2.0 to 3.0 m nickel body al 2 o 3 ceramic pb free pin connection 1 input ground 2 input 3ground 4 case ground 5 output ground 6output 7ground 8 case ground electrical connections matching circuit to 50 ?
a 1 2 3 b 7 6 5 4 c h 4 e f g 8 d 8 7 6 5 1 2 3 pcb footprint dimensions 3 . 2 0 m m 1.39 mm .96 mm . 3 8 m m . 8 1 m m .23 mm .81 mm 8-terminal ceramic surface-mount case 3.0 x 3.0 mm nominal footprint sm3030-8 case
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