www.rfm.com e-mail: info@rfm.com page 1 of 5 ?2009-2010 by rf monolithics, inc. SF2038C - 6/14/10 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 * at low temperature extreme -40 c characteristic sym notes min typ max units nominal center frequency f c 1 76.500 mhz passband insertion loss il 10.8 12.0 db 1 db bandwidth bw 1 1 12.0 12.7 mhz 15 db bandwidth bw 15 17.5 18.0 mhz 30 db bandwidth bw 30 19.4 20.0 mhz amplitude ripple over fc 6.0 mhz 0.60 1.3 db p-p group delay variation over fc 6.0 mhz gdv 40 150 ns p-p rejection: 1, 3 db 50 to 64.44 mhz 36 42 64.44 to 66.70 mhz 33 39 86.30 to 87.06 mhz 16* 24 87.06 to 91.50 mhz 23* 34 91.50 to 100.000 mhz 36 40 operating temperature range t a 1-40 +85c frequency temperture coefficient ftc -87 ppm/c differential input 175 ohms differential output 180 ohms case style 6 sm5050-8 5 x 5 mm nominal footprint lid symbolization (y=year, ww=week, s=shift) see note 4 rfm 913 ywws sm5050-8 ? designed for sdars if receiver low insertion loss 5.0 x 5.0 mm surface-mount case differential or single-ended input and output complies with directive 2002/95/ec (rohs) absolute maximum ratings rating value units maximum incident power in passband +10 dbm maximum dc voltage on any non-ground terminal 30 vdc storage temperature range in tape and reel -40 to +85 c maximum soldering profile 265c for 10 s 76.500 mhz saw filter SF2038C pb caution: electrostatic sensitive device. observe precautions for handling. notes:
www.rfm.com e-mail: info@rfm.com page 2 of 5 ?2009-2010 by rf monolithics, inc. SF2038C - 6/14/10 ch2 s2 1 log 10 db/ ref -9.3 db start 36 . 500 000 mhz stop 116 . 500 000 mhz cor 10 jun 2009 12:54:15 1 2 3 4 1 : 0 . 000 0 db 0 . 000 000 mhz ref=1 ch 2 mar ke rs bw : 1 2 . 7 64934 mhz cent : 76 . 4124 44 mhz q: 5. 9861 1_ loss : -9 . 6625 db SF2038C -d emo eng full ch2 s 21 log 1 d b/ ref - 9.23 db center 76 . 50 0 00 0 mhz span 20 . 000 000 mhz c 10 jun 20 09 12:55 :45 3 4 4 : - . 3400 0 db 11 . 118 625 mhz ref=3 ch2 markers me an : -9 . 5214 db s . dev : . 1524 0 db p -p : . 7 1570 db SF2038C -demo eng full filter response, 36.5 to 116.5 mhz filter passband response
www.rfm.com e-mail: info@rfm.com page 3 of 5 ?2009-2010 by rf monolithics, inc. SF2038C - 6/14/10 ch2 s 21 de l 10 0 ns/ ref 49 5.3 n s center 7 6 . 50 0 00 0 mhz span 20 . 000 000 mhz c smo 10 jun 2009 12:56:23 3 4 4 : -1 2 . 345 ns 11 . 118 625 mhz ref =3 ch2 markers mean : 490 . 99 ns s . dev : 10 . 861 ns p -p : 39 . 520 ns SF2038C-demo eng full ch1 s11 1 u fs cor ch3 s2 2 1 u fs center 76 . 500 000 mhz span 80 . 000 000 mhz cor 10 jun 2009 12:53:33 1 1: 43 . 500 27 . 16 4 56 . 514 nh 7 6 . 5 00 00 0 mhz 1 1: 33 . 594 12 . 69 5 26 . 412 nh 7 6 . 5 00 00 0 mhz sf20 38 c-d emo en g full filter passband group delay response filter s 11 and s 22 plots
www.rfm.com e-mail: info@rfm.com page 4 of 5 ?2009-2010 by rf monolithics, inc. SF2038C - 6/14/10 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 differential input 1, 2 port 2 differential output 5, 6 ground all others single-ended operation return is ground differential operation return is hot dot indicates pin 1 test circuit l2, l3 270 nh xfmr1, xfmr 2 3:1 c1, c4 18 pf c2 15 pf c3 1 pf l1 330 nh xfmr1, xfmr 2 3:1 a 1 2 3 b 7 6 5 4 c d 7 6 5 4 e f g 1 2 3 8 8 top view bottom view
www.rfm.com e-mail: info@rfm.com page 5 of 5 ?2009-2010 by rf monolithics, inc. SF2038C - 6/14/10 see detail "a" 1 3 . 0 2 0 . 2 2.0 12.0 1 0 0 r e f . " b " r e f . detail ?a? 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 w12.0 mm pin #1
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