available on tape and reel for pick and place manufacturing. usa/canada: toll free: europe : (315) 432-8909 (800) 411-6596 +44 2392-232392 model B4859A53 rev a ultra small low profile 0603 balun 50 ? to 100 ? balanced description the B4859A53 is an ultra-small low profile balanced to unbalanced transformer designed for differential inputs and output locations on next generation wireless chipsets in an easy to use surface mount package covering 802.11a uni-band ii and uni-band iii and the japanese ism band (4.9ghz). the b 4859a53 is ideal for high volume manufacturing and is higher performance than traditional ceramic baluns. the B4859A53 has an unbalanced port impedance of 50 ? and a 100 ? balanced port impedance. this transformation enables single ended signals to be applied to differential ports on modern integrated ch ipsets. the output ports have equal amplitude (-3db) with 180 degree phase diffe rential. the B4859A53 is available on tape and reel for pick and place high volume manufacturing. detailed electrical specifications: specifications subject to change without notice. room (25 c) parameter min. typ. max unit frequency 4800 5900 mhz unbalanced port impedance 50 ? balanced port impedance 100 ? return loss 12 15 db insertion loss* 0.7 0.9 db amplitude balance 0.5 1.0 db phase balance 5 7 degrees cmrr 27 db power handling 0.5 watts features: ? 4800 ? 5900 mhz ? 0.7mm height profile ? 50 ohm to 2 x 50 ohm ? covers 802.11a uni-band ii & iii ? low insertion loss ? input to output dc isolation ? surface mountable ? tape & reel ? non-conductive surface ? rohs compliant operating temperature -55 +85 oc * insertion loss stated at room temperature (insertion loss is approximately 0.1 db higher at +85 oc) outline drawing .008 [0.20] 4 5 6 3 2 1 nc gnd balanced port 2 balanced port 1 gnd unbalanced port designation 5 4 2 1 6 3 pin mechanical outline dimensions are in inches [millimeters] tolerances are non-cumulative bottom view (far-side) side view top view (near-side) orientation marker denotes pin location .063 .004 [1.60 0.10 ] .034 .004 [0.86 0.10 ] .027 .002 [0.69 0.05 ] .020 [0.50] .010 [0.25] .020 [0.50]
usa/canada: toll free: europe: (315) 432-8909 (800) 411-6596 +44 2392-232392 available on tape and reel for pick and place manufacturing. model B4859A53 rev a typical broadband performance: 500 mhz. to 8000 mhz. return loss - input -36 -33 -30 -27 -24 -21 -18 -15 -12 -9 -6 -3 0 500 1000 1500 2000 2500 3000 3500 4000 4500 5000 5500 6000 6500 7000 7500 8000 fr e que ncy [m hz ] [db] amplitude balance -2 -1.5 -1 -0.5 0 0.5 1 1.5 2 500 1000 1500 2000 2500 3000 3500 4000 4500 5000 5500 6000 6500 7000 7500 8000 frequency [mhz] [db] insertion loss -3.6 -3.3 -3 -2.7 -2.4 -2.1 -1.8 -1.5 -1.2 -0.9 -0.6 -0.3 0 500 1000 1500 2000 2500 3000 3500 4000 4500 5000 5500 6000 6500 7000 7500 8000 frequency [mhz] [db] phase balance -20 -15 -10 -5 0 5 10 15 20 500 1000 1500 2000 2500 3000 3500 4000 4500 5000 5500 6000 6500 7000 7500 8000 frequency [mhz] deg cm rr -36 -33 -30 -27 -24 -21 -18 -15 -12 -9 -6 -3 0 500 1000 1500 2000 2500 3000 3500 4000 4500 5000 5500 6000 6500 7000 7500 8000 frequency [mhz] [db]
available on tape and reel for pick and place manufacturing. usa/canada: toll free: europe : (315) 432-8909 (800) 411-6596 +44 2392-232392 model B4859A53 rev a typical performance: 4700 mhz. to 6000 mhz. return loss - input -36 -33 -30 -27 -24 -21 -18 -15 -12 -9 -6 -3 0 4700 4800 4900 5000 5100 5200 5300 5400 5500 5600 5700 5800 5900 6000 frequency [mhz] [db] amplitude balance -2 -1.5 -1 -0.5 0 0.5 1 1.5 2 4700 4800 4900 5000 5100 5200 5300 5400 5500 5600 5700 5800 5900 6000 frequency [mhz] [db] insertion loss -3.6 -3.3 -3 -2.7 -2.4 -2.1 -1.8 -1.5 -1.2 -0.9 -0.6 -0.3 0 4700 4800 4900 5000 5100 5200 5300 5400 5500 5600 5700 5800 5900 6000 frequency [mhz] [db] phase balance -20 -15 -10 -5 0 5 10 15 20 4700 4800 4900 5000 5100 5200 5300 5400 5500 5600 5700 5800 5900 6000 frequency [mhz] deg cmrr -36 -33 -30 -27 -24 -21 -18 -15 -12 -9 -6 -3 0 4700 4800 4900 5000 5100 5200 5300 5400 5500 5600 5700 5800 5900 6000 frequency [mhz] [db]
usa/canada: toll free: europe: (315) 432-8909 (800) 411-6596 +44 2392-232392 available on tape and reel for pick and place manufacturing. model B4859A53 rev a mounting configuration: in order for xinger surface mount components to work opti mally, the proper impedance transmission lines must be used to connect to the rf ports. if this condition is not satisfied, insertion loss, isolation and vswr may not meet published specifications. all of the xinger components are constructed from ceramic filled ptfe composites which possess excellent electrical and mechanical stability having x and y thermal coefficient of expansion (cte) of 17 ppm/ o c. an example of the pcb footprint used in the testing of these parts is shown below. in specific designs, the transmission line widths need to be adjusted to the unique di electric coefficients and thicknesses as well as varying pick and place equipment tolerances. .012 [0.31] 2x .006 [0.16] 6x .013 [0.34] 6x .011 [0.29] 6x .002 [0.05] 3x transmission line plated thru holes to ground part orientation (top view) 0603 standaard mounting footprint dimensions are in inches [millimeters] circuit pattern footprint pad (s) solder resist
available on tape and reel for pick and place manufacturing. usa/canada: toll free: europe : (315) 432-8909 (800) 411-6596 +44 2392-232392 model B4859A53 rev a packaging and ordering information parts are available in reel and are packaged per eia 481-2. part s are oriented in tape and reel as shown below. minimum order quantities are 4000 per reel. see model num bers below for further ordering information . b ?a ?c reel dimensions (inches [mm]) ?a b ?c 0.32 [8.0] 2.0 [50.8] 7.00 [177.8] 4000 quantity/reel table 1 ?d 0.512 [13.0] ?d
usa/canada: toll free: europe: (315) 432-8909 (800) 411-6596 +44 2392-232392 available on tape and reel for pick and place manufacturing. model B4859A53 rev a
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