www.rfm.com e-mail: info@rfm.com page 1 of 4 ?2009 by rf monolithics, inc. SF2188D - 2/5/09 electrical characteristics electrical connections characteristic sym notes min typ max units nominal center frequency f c 1 339 340 341 mhz insertion loss il 1 2.0 3.0 db 1 db bandwidth 1811mhz passband ripple, 336 to 344 mhz 1 0.4 1.0 db p-p absolute attenuation (referenced from 0 db) 10 to 300 mhz 25054 db 300 to 320 mhz 24047 db 375 to 800 mhz 24045 db frequency temperature coefficient -36 ppm/c source impedance 50 ohm load impedance 50 ohm operating temperature range -40 +85 c case style sm3838-8 3.8 x 3.8 mm nominal footprint lid symbolization (y=year, ww=week, s=shift) rfm 876 ywws connection terminals port 1 2 port 2 6 case ground all others sm3838-8 ? no external matching required 3.8 x 3.8 x 1.4 mm surface-mount package complies with directive 2002/95/ec (rohs) absolute maximum ratings rating value units maximum incident power in passband +10 dbm maximum dc voltage between any two terminals 3 vdc storage temperature range -40 to +85 c suitable for lead-free soldering - maximum soldering profile 260c for 30 s 340 mhz saw filter SF2188D 1. unless noted otherwise, all specifications apply over the operating temper- ature range with filter soldered to the specified demonstration 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 absolute attenuation (0 db reference). rejection in final user application is dependent 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 prototypes." 5. the design, manufacturing process, and specifications of this filter are subject to change. 6. 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. 7. us and international patents may apply. 8. rfm, stylized rfm logo, and rf monolithics, inc. are registered trademarks of rf monolithics, inc. pb caution: electrostatic sensitive device. observe precautions for handling. notes:
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www.rfm.com e-mail: info@rfm.com page 2 of 4 ?2009 by rf monolithics, inc. SF2188D - 2/5/09 SF2188D frequency response www.datasheet.net/ datasheet pdf - http://www..co.kr/
www.rfm.com e-mail: info@rfm.com page 3 of 4 ?2009 by rf monolithics, inc. SF2188D - 2/5/09 8-terminal ceramic surface-mount case 3.8 x 3.8 mm nominal footprint sm3838-8 case top view bottom view pcb footprint www.datasheet.net/ datasheet pdf - http://www..co.kr/
www.rfm.com e-mail: info@rfm.com page 4 of 4 ?2009 by rf monolithics, inc. SF2188D - 2/5/09 tape and reel specifications ?b ? nominal size quantity per reel inches millimeters 7 178 1000 13 330 3000 see detail "a" 1 3 . 0 2 0 . 2 2.0 12.0 1 0 0 r e f . " b " r e f . component orientation and dimensions carrier tape dimensions ao 4.25 mm bo 4.25 mm ko 1.30 mm pitch 8.0 mm w12.0 mm ro.3 (max.) ko section a-a 0.3 0.05 section b-b bo 2.0 4.0 ao pitch bb a r0.5 (max.) a 5 . 5 1 2 . 0 1 . 7 5 1.5 1.50 pin #1 user direction of feed www.datasheet.net/ datasheet pdf - http://www..co.kr/
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