www.rfm.com e-mail: info@rfm.com page 1 of 7 ? 2011 by rf monolithics, inc. SF1207D - 11/16/11 electrical characteristics, transmitter to antenna characteristic sym notes min typ max units center frequency f c 836.5 mhz insertion loss, 824 to 849 mhz il 1.5 2.2 db amplitude ripple, 824 to 849 mhz 0.4 1.0 db p-p vswr, 824 to 849 mhz 1.9:1 2.4:1 attenuation referenced to 0 db: db 859 mhz 49 869 to 894 mhz 45 50 input impedance (antenna) z s 50 ? output impedance, (tx and rx) z l 50 case style sm3838-12 3.8 x 3.8 mm nominal footprint lid symbolization (y=year, ww=week, s= shift) dot=pin 1 indicator a42, ywws standard reel quantity reel size 7 inch 1000 pieces/reel reel size 13 inch 3000 pieces/reel ? low-loss rf saw duplexer ? surface-mount 3.8 x 3.8 x 1.4 mm package ? complies with directive 2002/95/ec (rohs) absolute maximum ratings rating value units cw input power level, 50,000 hours, +50 c 1.2 w dc voltage 0 v operating temperature range -30 to +85 c storage temperature range in tape and reel -40 to +85 c 836.5/881.5 mhz saw duplexer SF1207D 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. "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. 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: preliminary
www.rfm.com e-mail: info@rfm.com page 2 of 7 ? 2011 by rf monolithics, inc. SF1207D - 11/16/11 electrical characteristics, receiver to ante nna, receiver to transmitter characteristic sym notes min typ max units center frequency f c 881.5 mhz insertion loss, 869 to 894 mhz il 2.0 3.0 db amplitude ripple, 869 to 894 mhz 0.8 1.5 db p-p vswr, 869 to 894 mhz 1.7:1 2.2:1 attenuation referenced to 0 db: db 824 to 849 mhz 50 58 859 mhz 413 receiver-transmitter isolation: 824 to 849 mhz 50 55 db 869 to 894 mhz 48 53 duplexer package dimensions in mm
www.rfm.com e-mail: info@rfm.com page 3 of 7 ? 2011 by rf monolithics, inc. SF1207D - 11/16/11 duplexer antenna to rece iver passband response
www.rfm.com e-mail: info@rfm.com page 4 of 7 ? 2011 by rf monolithics, inc. SF1207D - 11/16/11 duplexer antenna to tran smitter passband response
www.rfm.com e-mail: info@rfm.com page 5 of 7 ? 2011 by rf monolithics, inc. SF1207D - 11/16/11 duplexer rx-tx isolation antenna port impedance
www.rfm.com e-mail: info@rfm.com page 6 of 7 ? 2011 by rf monolithics, inc. SF1207D - 11/16/11 receiver port impedance transmitter port impedance
www.rfm.com e-mail: info@rfm.com page 7 of 7 ? 2011 by rf monolithics, inc. SF1207D - 11/16/11 duplexer test circuit k is the antenna port b is the transmitter port h is the receiver port all other package pads are ground
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