? preliminary rf monolithics, inc. phone: (972) 233-2903 fax: (972) 387-8148 e-mail: info@rfm.com page 1 of 3 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. SF2125D-101106 ver 0.1 electrical characteristics characteristic sym notes min typ max units center frequency f c 1 305 mhz insertion loss il 8.5 db amplitude ripple (p-p) fc-2.5 to fc+2.5 1 0.7 1.5 db low side attenuation (fc-8.2 mhz) 30 db low side attenuation (fc-7.8 mhz) 25 high side attenuation (fc-7.8 mhz) 25 high side attenuation (fc-8.2 mhz) 30 temperature coefficient of frequency -18 ppm/k delay ripple (p-p) fc-2.5 to fc+2.5 mhz 1, 2, 3 50 ns group delay in passband 350 case style 6 sm3838-8 3.8 x 3.8 mm nominal footprint lid symbolization (y=year, ww=week, s=shift) see note 4 tbd ywws sm3838-8 ? low insertion loss ? 3.8 x 3.8 x 1.2 mm surface-mount case ? differential 750 ohm in and 900 ohm out ? complies with directive 2002/95/ec (rohs) absolute maximum ratings rating value units maximum incident power in passband +10 dbm max. dc voltage between any 2 terminals 30 vdc storage temperature range -40 to +85 c suitable for lead-free soldering - max soldering profile 260c for 30 s 305.00 mhz saw filter SF2125D pb notes: 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. 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 dependent on pcb layout and external impedance matching design. see applica- tion note no. 42 for details. 4. the design, manufacturing process, and specifications of this filter are subject to change. 5. tape and reel standard per ansi / eia 481. 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. electrostatic sensitive device. observe precautions for handling.
305.000 mhz saw filter rf monolithics, inc. phone: (972) 233-2903 fax: (972) 387-8148 e-mail: info@rfm.com page 2 of 3 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. SF2125D-101106 ver 0.1 8-terminal ceramic surface-mount case 3.8 x 3.8 mm nominal footprint sm3838-8 case top view bottom view 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 0.066 0.055 typ. (1.68) (1.40) 0.029 typ. (o.74) 0.050 typ. (1.27) 0.002 (0.05) 0.090 (2.29) 0.033 (0.84) pcb footprint materials solder pad termination au plating 30 - 60 uinches (76.2-152 um) over 80-200 uinches (203-508 um) ni. lid fe-ni-co alloy electroless nickel plate (8-11% phos- phorus) 100-200 uinches thick body al 2 o 3 ceramic pb free case dimensions dimension mm inches min nom max min nom max a 3.6 3.8 4.0 0.142 0.150 0.157 b 3.6 3.8 4.0 0.142 0.150 0.157 c 1.05 1.20 1.35 0.041 0.047 0.053 d 0.95 1.10 1.25 0.037 0.043 0.049 e 0.90 1.00 1.10 0.035 0.040 0.043 f 0.50 0.60 0.70 0.020 0.024 0.028 g 2.39 2.54 2.69 0.090 0.100 0.110 h 1.40 1.75 2.05 0.055 0.069 0.080 a 1 2 3 b 7 6 5 4 c h 7 6 5 4 e f g 1 2 3 8 8 d t b d y w w s
305.000 mhz saw filter rf monolithics, inc. phone: (972) 233-2903 fax: (972) 387-8148 e-mail: info@rfm.com page 3 of 3 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. SF2125D-101106 ver 0.1 tape and reel specifications ?b ? nominal size quantity per reel inches millimeters 7 178 500 13 330 3000 component orientation and dimensions carrier tape dimensions ao 4.25 mm bo 4.25 mm ko 1.6 mm pitch 8.0 mm w 12.0 mm see detail "a" 13.0 20.2 2.0 12.0 100 ref. "b" ref. ro.3 (max.) ko section a-a 0.3 0.05 section b-b bo 2.0 4.0 ao pitch b b a r0.5 (max.) a 5.5 12.0 1.75 1.5 1.50 pin #1 user direction of feed
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