Model B4859A53 Rev A Ultra Small Low Profile 0603 Balun 50Ω to 100Ω 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 B4859A53 is ideal for high volume manufacturing and is higher performance than traditional ceramic baluns. The B4859A53 has an unbalanced port impedance of 50Ω and a 100Ω balanced port impedance. This transformation enables single ended signals to be applied to differential ports on modern integrated chipsets. The output ports have equal amplitude (-3dB) with 180 degree phase differential. 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) 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 Parameter Frequency Unbalanced Port Impedance Balanced Port Impedance Return Loss Insertion Loss* Amplitude Balance Phase Balance CMRR Power Handling Operating Temperature Min. 4800 Typ. Max 5900 50 100 15 0.7 0.5 5 27 12 0.9 1.0 7 0.5 +85 -55 Unit MHz Ω Ω dB dB dB Degrees dB Watts ºC * Insertion Loss stated at room temperature (Insertion Loss is approximately 0.1 dB higher at +85 ºC) Outline Drawing Top View (Near-side) .063±.004 [1.60±0.10] Side View Bottom View (Far-side) .027±.002 [0.69±0.05] 1 .034±.004 [0.86±0.10] Orientation Marker Denotes Pin Location Dimensions are in Inches [Millimeters] Mechanical Outline 2 .020 [0.50] 3 .008 [0.20] .020 [0.50] Pin 1 2 3 4 5 6 Designation Unbalanced Port GND Balanced Port 1 Balanced Port 2 GND NC 6 5 4 .010 [0.25] Tolerances are Non-Cumulative 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 Broadband Performance: 500 MHz. to 8000 MHz. Amplitude Balance Return Loss - Input 0 2 -3 1.5 -6 -9 1 -12 0.5 [dB] -18 -21 0 -0.5 -24 -27 -1 -30 -1.5 -33 -36 5500 6000 6500 7000 7500 8000 6000 6500 7000 7500 8000 5000 4500 Phase Balance Insertion Loss 20 -0.3 15 -0.6 10 -0.9 -1.2 5 deg -1.5 -1.8 -2.1 0 -5 -2.4 -2.7 -10 -3 -15 -3.3 -3.6 Frequency [MHz] CM RR -3 -6 -9 -12 -15 -18 -21 -24 -27 -30 -33 8000 7500 7000 6500 6000 5500 5000 4500 4000 3500 3000 2500 2000 1500 1000 500 -36 Frequency [MHz] (315) 432-8909 (800) 411-6596 +44 2392-232392 5000 4500 4000 3500 3000 2500 2000 1500 Frequency [MHz] 0 USA/Canada: Toll Free: Europe: 500 8000 7500 7000 6500 6000 5500 5000 4500 4000 3500 3000 2500 2000 1500 1000 500 -20 1000 [dB] 4000 Frequency [MHz] 0 [dB] 5500 Frequency [MHz] 3500 3000 2500 2000 1500 500 8000 7500 7000 6500 6000 5500 5000 4500 4000 3500 3000 2500 2000 1500 1000 500 -2 1000 [dB] -15 Available on Tape and Reel for Pick and Place Manufacturing. Model B4859A53 Rev A Typical Performance: 4700 MHz. to 6000 MHz. Return Loss - Input Amplitude Balance 0 2 -3 1.5 -6 -9 1 -12 0.5 [dB] -18 -21 0 -0.5 -24 -27 -1 -30 -1.5 -33 5600 5700 5800 5900 6000 5600 5700 5800 5900 6000 5500 5400 5300 Frequency [MHz] Frequency [MHz] Insertion Loss Phase Balance 0 20 -0.3 -0.6 15 -0.9 10 -1.2 5 -1.5 -1.8 deg [dB] 5200 5100 5000 4700 6000 5900 5800 5700 5600 5500 5400 5300 5200 5100 5000 4900 4800 4700 4900 -2 -36 4800 [dB] -15 -2.1 0 -5 -2.4 -2.7 -10 -3 -15 -3.3 5500 5400 5300 5200 6000 6000 5100 5900 5900 5000 5800 5800 4900 5700 5700 4800 5600 5600 5500 5400 5300 5200 5100 5000 4900 4800 4700 4700 -20 -3.6 Frequency [MHz] Frequency [MHz] CMRR 0 -3 -6 -9 -12 -18 -21 -24 -27 -30 -33 5500 5400 5300 5200 5100 5000 4900 4800 -36 4700 [dB] -15 Frequency [MHz] 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 Mounting Configuration: In order for Xinger surface mount components to work optimally, 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/oC. 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 dielectric coefficients and thicknesses as well as varying pick and place equipment tolerances. 6X .013 [0.34] 2X .006 [0.16] Part Orientation (Top View) 6X .011 [0.29] .012 [0.31] 6X .002 [0.05] 3X Transmission Line Plated thru holes to ground Circuit Pattern Footprint Pad (s) Dimensions are in Inches [Millimeters] 0603 Standaard Mounting Footprint Solder Resist 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 Packaging and Ordering Information Parts are available in reel and are packaged per EIA 481-2. Parts are oriented in tape and reel as shown below. Minimum order quantities are 4000 per reel. See Model Numbers below for further ordering information. ØA ØC ØD QUANTITY/REEL 4000 TABLE 1 REEL DIMENSIONS (inches [mm]) ØA 7.00 [177.8] B 0.32 [8.0] ØC 2.0 [50.8] ØD 0.512 [13.0] B 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 USA/Canada: Toll Free: Europe: (315) 432-8909 (800) 411-6596 +44 2392-232392 Available on Tape and Reel for Pick and Place Manufacturing.