www.rfm.com e-mail: info@rfm.com page 1 of 6 ?2009 by rf monolithics, inc. SF2189A - 7/1/09 electrical characteristics characteristic sym notes min typ max units center frequency f c 1 140 mhz minimum insertion loss il min 1 11.3 13.0 db 1 db bandwidth bw 1 1 30.0 33.0 mhz 3 db bandwidth bw 3 1 32.0 35.0 mhz 35 db bandwidth bw 35 1 42.4 44.0 mhz passband amplitude ripple, 80% of 3 db bandwidth 1, 2, 3 0.6 1.2 db p-p passband group delay ripple, 80% of 3 db bandwidth 1, 2, 3 50 120 ns p-p passband absolute group delay 1,2,3 0.55 s passband phase linearity, 80% of 3 db bandwidth 1, 2, 3 5 14 deg p-p operating temperature 1 -20 +80 c frequency temperature coefficient -94 ppm/c source impedance 50 ohm load impedance 50 ohm case style sm13365-12 13.3 x 6.5 mm nominal footprint lid symbolization (yy = year, ww = week) rfm SF2189A yyww ? precision if saw filter hermetic 13.3 x 6.5 mm surface-mount case 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 in tape and reel -40 to +85 c suitable for lead-free soldering - maximum soldering profile 260c for 30 s 140 mhz saw filter SF2189A sm13365-12 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. part to part absolute delay measurement records the absolute delay mean across 1 db passband. 5. "lrip" or "l" after the part number indicates "low rate initial production" and "eng" or "e" indicates "engineering prototype s.? 6. the design, manufacturing process, and specifications of this filter are subject to change. 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. pb caution: electrostatic sensitive device. observe precautions for handling. notes: preliminary
www.rfm.com e-mail: info@rfm.com page 2 of 6 ?2009 by rf monolithics, inc. SF2189A - 7/1/09 SF2189A filter response SF2189A passband amplitude and group delay ripple
www.rfm.com e-mail: info@rfm.com page 3 of 6 ?2009 by rf monolithics, inc. SF2189A - 7/1/09 SF2189A input impedance (k port) SF2189A output impedance (e port)
www.rfm.com e-mail: info@rfm.com page 4 of 6 ?2009 by rf monolithics, inc. SF2189A - 7/1/09 SF2189A pcb pad layout sa w fi l ter l1 l2 zin zout k k k ke e e e l3 SF2189A 50 ohm matching network l1 = 10 nh, l2 = 27 nh, l3 = 68 nh saw filter
www.rfm.com e-mail: info@rfm.com page 5 of 6 ?2009 by rf monolithics, inc. SF2189A - 7/1/09 sm13365-12 case case dimensions electrical connections dimension mm inches min nom max min nom max a 13.08 13.31 13.60 0.515 0.524 0.535 b 6.27 6.50 6.80 0.247 0.256 0.268 c 1.91 2.00 0.075 0.079 d 1.50 0.059 e 0.79 0.031 h 1.0 0.039 p 2.54 0.100 connection term inals input k output e case ground all others 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 12-terminal ceramic surface-mount case 13.3 x 6.5 mm nominal footprint
www.rfm.com e-mail: info@rfm.com page 6 of 6 ?2009 by rf monolithics, inc. SF2189A - 7/1/09 tape and reel details
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