www.rfm.com e-mail: info@rfm.com page 1 of 5 ? 2010-2011 by rf monolithics, inc. sf2242b - 10/28/11 notes: 1. unless noted otherwise, all specifications apply over the operating temperature range with filter soldered to the specified dem onstration 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. electrostatic sensitive device. observe precautions for handling. electrical characteristics characteristic sym notes min typ max units center frequency f c 140mhz minimum insertion loss il min 1, 2 9.5 12.0 db 3 db bandwidth 3.5 5.0 mhz amplitude ripple, (f c - 1.75 mhz to f c + 1.75 mhz) 1.4 2.0 db p-p group delay ripple, (f c - 1.75 mhz to f c + 1.75 mhz) 190 250 ns p-p attenuation relative to il min : db f c - 5 mhz to f c + 5 mhz 20 26 27.5 to 32.5 mhz 31 40 47.5 to 52.5 mhz 31 46 0 to 30.0 mhz 35 64 50.0 to 70.0 mhz 35 40 operating temperature range t a 1-20 +85c smp-03 ? compact 40 mhz saw filter design hermetic 5 x 7 mm surface-mount case complies with directive 2002/95/ec (rohs) absolute maximum ratings rating value units maximum incident power in passband +10 dbm dc voltage on any non-ground terminal 5 vdc storage temperature range in tape and reel -40 to +85 c suitable for lead-free soldering - maximum soldering profile 260 c for 30 s 40 mhz saw filter sf2242b terminating source impedance (through matching network) z s = 50 ohms terminating source impedance (through matching network) z l = 50 ohms case style 6 smp-03 7 x 5 mm nominal footprint lid symbolization (yy = year, ww = week) rfm/sf2242b/yyww pb
www.rfm.com e-mail: info@rfm.com page 2 of 5 ? 2010-2011 by rf monolithics, inc. sf2242b - 10/28/11 filter response plots
www.rfm.com e-mail: info@rfm.com page 3 of 5 ? 2010-2011 by rf monolithics, inc. sf2242b - 10/28/11 filter input/output impedance plots
www.rfm.com e-mail: info@rfm.com page 4 of 5 ? 2010-2011 by rf monolithics, inc. sf2242b - 10/28/11
smp-03 10-terminal ceramic surface-mount case 5 x 7 mm nominal footprint recommended pcb footprint case dimensions dimension mm inches min nom max min nom max a 6.80 7.00 7.20 0.268 0.276 0.283 b 4.80 5.00 5.20 0.189 0.197 0.205 c - 1.65 2.00 - 0.065 0.079 d 0.47 0.60 0.73 0.019 0.024 0.029 e 2.41 2.54 2.67 0.095 0.100 0.105 h 0.87 1.0 1.13 0.034 0.039 0.044 j 4.87 5.00 5.13 0.192 0.197 0.202 k 2.87 3.00 3.13 0.113 0.118 0.123 p 1.14 1.27 1.40 0.045 0.050 0.055 electrical connections connection terminals port 1 input or balanced input 10 port 2 output or balanced output 5 ground all others single-ended or differential operation case 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 a b c h e p d h j k
www.rfm.com e-mail: info@rfm.com page 5 of 5 ? 2010-2011 by rf monolithics, inc. sf2242b - 10/28/11 tape and reel specifications ?b? nominal size quantity per reel inches millimeters 7 178 500 13 330 2000 user direction of feed component orientation and dimensions carrier tape dimensions ao 5.6 mm bo 7.6 mm ko 2.0 mm pitch 8.0 mm w 16.0 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 . 16.0
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