? rf monolithics, inc. phone: (972) 233-2903 fax: (972) 387-8148 e-mail: info@rfm.com page 1 of 4 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. SF1197B-081203 electrical characteristics characteristic sym notes min typ max units nominal center frequency f n 1 248.6 mhz minimal insertion attenuation a_min 3.0 4 db 3 db band width 5.0 6.5 mhz amplitude ripple (p - p) [fn 120 khz] 0.3 0.5 db group delay ripple (p - p) [fn 120 khz] 0.3 s relative attenuation (relative to amin) a_rel 10 mhz .... (fn - 29,2 mhz) 45.0 50 db fn + 22,8 mhz 45.0 50 db fn + 52,0 mhz 45.0 50 db fn + 74,8 mhz 45.0 50 db fn + 104,0 mhz 45.0 50 db fn + 126,8 mhz 45.0 50 db case style smp-03 7 x 5 mm nominal footprint lid symbolization (y=year, ww=week, s=shift) see note 3 rfm SF1197B ywws smp-03 ? small size ? hermetic 7 x 5 mm surface mount case ? no matching required input power level max. 20 dbm for <= 100 hours max. 10 dbm for <= 15 years input: unsymmetrical output: symmetrical terminating source impedance: zs = 50 ohm (no matching network) terminating load impedance: zi = 200 ohm (no matching network) low-impedance input: near 50 ohm low-impedance output: near 200 ohm operating temperature t = -20 to 80 [c] 248.6 mhz saw filter SF1197B 1. unless noted otherwise, all specifications apply over the operating temperature range with filter soldered to the specified demonstration board with impedance matching to 50 w and measured with 50 w network analyzer. a db offset exists for rfm because of the loss introduced by using transformers on the input and output. 2. rejection is measured as attenuation below the minimum il point in the pass- band. rejection in final user application is dependent on pcb layout and exter- nal impedance matching design. see application note no. 42 for details. 3. "lrip" or "l" after the part number indicates "low rate initial production" and "eng" or "e" indicates "engineering prototypes." 4. the design, manufacturing process, and specifications of this filter are subject to change. 5. 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. 6. us and international patents may apply. 7. rfm, stylized rfm logo, and rf monolithics, inc. are registered trademarks of rf monolithics, inc. 8. ?copyright 1999, rf monolithics inc. 9. electrostatic sensitive device. observe precautions for handling. notes: www.datasheet.net/ datasheet pdf - http://www..co.kr/
248.6 mhz saw filter rf monolithics, inc. phone: (972) 233-2903 fax: (972) 387-8148 e-mail: info@rfm.com page 2 of 4 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. SF1197B-081203 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 9.4 mm bo 7.4 mm ko 2.0 mm pitch 8.0 mm w 16.0 mm pin #1 see detail "a" 13.0 20.2 2.0 12.0 100 ref. "b" ref. www.datasheet.net/ datasheet pdf - http://www..co.kr/
248.6 mhz saw filter rf monolithics, inc. phone: (972) 233-2903 fax: (972) 387-8148 e-mail: info@rfm.com page 3 of 4 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. SF1197B-081203 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 0.60 0.024 e 2.54 0.100 h 1.0 0.039 j 5.00 0.197 k 3.00 0.118 p 1.27 0.050 connection terminals port 1 input or return 10 return or input 1 port 2 output or return 5 return or output 6 ground all others single ended operation return is ground differential operation return is hot 10-terminal ceramic surface-mount case 7 x 5 mm nominal footprint smp-03 case electrical connections case dimensions h c d p b a e 10 1 9 8 7 6 2 3 4 5 2 3 4 9 7 9 8 7 9 7 6 5 1 10 top view bottom view www.datasheet.net/ datasheet pdf - http://www..co.kr/
248.6 mhz saw filter rf monolithics, inc. phone: (972) 233-2903 fax: (972) 387-8148 e-mail: info@rfm.com page 4 of 4 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. SF1197B-081203 reflow soldering profile (sn63) 250 200 150 100 50 1 2 3 4 5 minutes temperature (deg c) peak temperature: 210 to 235 deg c pre-drying: 120 to 150 deg c time above liquidus ~ 30 seconds liquidus: 183 deg c solder temperature profile figure 1 shows the recommended temperature profile for reflow soldering smp-03 and smp53-s packages. the package consists of a ceramic base with a metal lid that is attached with high-temperature solder. the filter pack- age is hermetically sealed and the solder seal must not be compromised with excessive heat in assembly. it is crit- ical that the filter package is never heated above 250c. it is recommended that the package be heated no higher than 240c for no more than 10 seconds. figure 1 www.datasheet.net/ datasheet pdf - http://www..co.kr/
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