www.rfm.com e-mail: info@rfm.com page 1 of 4 ? 2011-2012 by rf monolithics, inc. SF2289C 10/1/12 1. unless noted otherwise, all specifications apply over the operating temperature range with filter soldered to the specified d emonstration board with impedance matching to 50 ? and measured with 50 ? network analyzer. 2. unless noted otherwise, all frequency specifications are referenced to the nominal center frequency, fc. 3. rejection is measured as attenuation below the minimum il point in the passband. rejection in final user application is depe ndent on pcb layout and external impedance matching design. see application note no. 42 for details. 4. "lrip" or "l" after the part number indicates "low rate initial production" and "eng" or "e" indicates "engineering prototype s." 5. the design, manufacturing process, and specifications of this filter are subject to change. 6. tape and reel standard ansi / eia 481. 7. either port 1 or port 2 may be used for either input or output in the design. however, impedances and impedance matching may vary between port 1 and port 2, so that the filter must always be installed in one direction per the circuit design. 8. us and international patents may apply. 9. rfm, stylized rfm logo, and rf monolithics, inc. are registered trademarks of rf monolithics, inc. electrical characteristics characteristic sym notes min typ max units center frequency f c 1 155 mhz insertion loss, f c 4 mhz il 1 6.5 db rejection referenced to il min : 1, 3 db f c -38.8 to f c - 100 mhz 50 f c +38.8 to f c +100 mhz 42 operating temperature range t a 1-10 +50c input impedance at f c 263 ????? 8.7 pf output impedance at f c 685 ????? 9.1 pf case style 6 sm5050-8 5 x 5 mm nominal footprint lid symbolization a36 sm5050-8 ? low loss saw filter ? 5.0 x 5.0 mm surface-mount case ? complies with direct ive 2002/95/ec (rohs) absolute maximum ratings rating value units maximum incident power in passband 0 dbm maximum dc voltage on any non-ground terminal 10 v storage temperature range in tape and reel -40 to +85 c maximum soldering profile 265 c for 10 s 155 mhz saw filter SF2289C pb caution: electrostatic sensitive device. observe precautions for handling. notes: 56 nh 12 pf 56 nh 12 pf 50 ohm matching network
www.rfm.com e-mail: info@rfm.com page 2 of 4 ? 2011-2012 by rf monolithics, inc. SF2289C 10/1/12 ch1 s11 1 u fs centr 155 . 000 mhz span 150 . 000 mhz c ch2 s21 log 10 db/ ref -40 db c enter 15 5 . 000 0 00 m hz spa n 150 . 0 00 00 0 mh z c ch3 s 22 1 u fs cen tr 1 55 . 000 m hz spa n 150 . 0 00 mhz c 28 oct 2011 04:45:52 1 1: 50 . 283 -25 . 672 39 . 9 97 pf 15 5 . 000 0 00 m hz 1 1 : -4 . 1612 db 155 . 000 000 mhz 1 1: 41 .523 2. 2246 2 . 2 842 nh 155 . 0 00 00 0 m hz sf2289 c ful l ful l filter broadband plot filter impedance and passband plot ch1 s2 1 lo g 10 db/ r ef -40 db c en ter 155 . 0 00 00 0 mh z spa n 150 . 0 00 00 0 mh z c 28 oct 2011 04:49:19 1 2 3 4 4:-44.573db 75.000000mhz ref=1 ch1 markers 1 : 0 . 0 000 db 0 . 0 000 0 h z 2:-54 .677 db -3 8 . 8 000 m hz 3:-45 .349 db 38 . 8 000 m hz sf2 289c re jec t ion full
www.rfm.com e-mail: info@rfm.com page 3 of 4 ? 2011-2012 by rf monolithics, inc. SF2289C 10/1/12 a 1 2 3 b 7 6 5 4 c d 7 6 5 4 e f g 1 2 3 8 8 case dimensions dimension mm inches min nom max min nom max a 4.80 5.00 5.20 0.189 0.197 0.205 b 4.80 5.00 5.20 0.189 0.197 0.205 c 1.30 1.50 1.70 0.050 0.060 0.067 d 1.98 2.08 2.18 0.078 0.082 0.086 e 1.07 1.17 1.27 0.042 0.046 0.050 f 0.50 0.64 0.70 0.020 0.025 0.028 g 2.39 2.54 2.69 0.094 0.100 0.106 h 1.27 0.050 i 0.76 0.030 j 1.55 0.061 k 2.79 0.110 l 0.76 0.030 m 2.36 0.093 n 1.55 0.061 o 2.79 0.110 p 2.79 0.110 q 2.79 0.110 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 sm5050-8 surface-mount 8- terminal ceramic case 5.0 x 5.0 mm nominal footprint case materials pcb footprint
electrical connections connection terminals port 1 input 2 port 2 output 6 ground all others dot indicates pin 1 top view bottom view
www.rfm.com e-mail: info@rfm.com page 4 of 4 ? 2011-2012 by rf monolithics, inc. SF2289C 10/1/12 tape and reel specifications ?b? nominal size quantity per reel inches millimeters 7 178 500 13 330 3000 user direction of feed component orientation and dimensions carrier tape dimensions ao 5.3 mm bo 5.3 mm ko 2.0 mm pitch 8.0 mm w 12.0 mm pin #1 see detail "a" 1 3 . 0 2 0 . 2 2.0 12.0 1 0 0 r e f . " b " r e f .
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