2.45 ghz harmonic filter-balun optimized for at86rf230/231 and atmega128rfa1 p/n 2450FB15L0001 detail specification: 06/29/2010 page 1 of 4 general specifications part number 2450FB15L0001 20 min.@ 4800~5000mhz frequency (mhz) 2400~2500 20 min.@ 7200~7500mhz unbalanced impedance 50 ? operating temperature -40 to +85c insertion loss 1.5 db max. storage temperature return loss 9.5 db min. phase difference 180 10 input power 2 watts max. amplitude difference 2.0 db max. reel quantity 4,000 mechanical dimensions in mm l no. w 1 t 2 a 3 b 4 c 5 g 6 p balun layout with at86rf230/1 * line width should be designed to match 50 ? characteristic impedance, depending on pcb material and thickness. units: mm johanson technology, inc. reserves the right to make design changes without notice. all sales are subject to johanson technology, inc. terms and conditions. www.johansontechnology.com 4001 calle tecate ? camarillo, ca 93012 ? tel 805.389.1166 fax 805.389.1821 2010 johanson technology, inc. all rights reserved gnd gnd balanced port balanced port impedance match to at86rf230/231 and atmega128rfa1 "high frequency ceramic solutions" balanced impedance gnd or (dc feed + rf gnd) unbalanced port 0.004 0.079 2.00 0.10 function differential mode attenuation (db) common mode attenuation (db) 20 min.@ 4800~5000mhz terminal configuration +5 to +35c, humidity: 45-75%rh, 12 mos. max 0.049 0.004 0.031 0.004 0.10 0.10 0.008 0.012 0.004 0.30 0.004 0.20 0.10 +0.1/-0.2 1.25 0.80 0.10 0.10 0.026 0.002 0.65 0.05 0.012 0.014 0.004 0.35 0.30 +.004/-.008 land solder resist through-hole ( 0.3) ap gb t * 12 months in vacuum sealed bag and 1 week after opened. l w c 1 2 3 456 0.8 0.8 0.30 * 0.35 0.18 1 2 3 45 6 0402 22pf rf gnd cap johanson p/n: 500r07s220jv4
2.45 ghz harmonic filter-balun optimized for at86rf230/231 and atmega128rfa1 p/n 2450FB15L0001 detail specification: 06/29/2010 page 2 of 4 balun layout with atmega128rfa1 atmega128rfa1 units: mm * distance can vary depending on pcb layout and stack-up (matching phase may be influenced by this distance) ** shunt capacitor value is between 0.5pf and 1.5pf, depending of the true line impedance johanson technology, inc. reserves the right to make design changes without notice. all sales are subject to johanson technology, inc. terms and conditions. ` www.johansontechnology.com 4001 calle tecate ? camarillo, ca 93012 ? tel 805.389.1166 fax 805.389.1821 2010 johanson technology, inc. all rights reserved "high frequency ceramic solutions" ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) 0402 1.5pf ** shunt cap 0402 22pf rf gnd cap johanson p/n: 500r07s220jv4 ~0.65mm * 50 ? t ) land solder resist through-hole ( 0.3) 0.8 0.8 0.18 1 2 3 456 0.35 )
2.45 ghz harmonic filter-balun optimized for at86rf230/231 and atmega128rfa1 p/n 2450FB15L0001 detail specification: 06/29/2010 page 3 of 4 at86rf230/231 with dc feed graphical representation: see last page for filtering performance atmega128rfa1 with dc feed graphical representation: see last page for filtering performance johanson technology, inc. reserves the right to make design changes without notice. all sales are subject to johanson technology, inc. terms and conditions. www.johansontechnology.com 4001 calle tecate ? camarillo, ca 93012 ? tel 805.389.1166 fax 805.389.1821 2010 johanson technology, inc. all rights reserved "high frequency ceramic solutions" ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) )) ) 0402 22pf rf gnd cap johanson p/n: 500r07s220jv4 at86rf230/231 atmega128rfa1 ) )
2.45 ghz harmonic filter-balun optimized for at86rf230/231 and atmega128rfa1 p/n 2450FB15L0001 detail specification: 06/29/2010 page 4 of 4 typical electrical performance (t=25c) insertion loss / return loss amplitude difference / phase difference johanson technology, inc. reserves the right to make design changes without notice. all sales are subject to johanson technology, inc. terms and conditions. www.johansontechnology.com 4001 calle tecate ? camarillo, ca 93012 ? tel 805.389.1166 fax 805.389.1821 2010 johanson technology, inc. all rights reserved "high frequency ceramic solutions" ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) 2.5 2.0 3.0 -1 0 1 -2 2 -150 -100 -50 0 50 100 150 -200 200 freq, ghz dif_amplitude dif_phase fre q uenc y ( mhz ) -70 -60 -50 -40 -30 -20 -10 0 fre q uenc y ( mhz ) 50 1245 2440 3635 4830 6025 7220 8415 9610 10805 12000 unbal port return loss balanced port return loss insertion loss common mode rejection
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