Model X2BS Rev. B SMT Crossover Description The X2BS is a low profile crossover to intersect an RF and RF circuit trace in an easy to use surface mount package designed for frequencies up to 6 GHz. The X2BS is ideal for any application where an RF circuit must intersect with another RF circuit without resorting to a multilayer PCB. Parts have been run through rigorous qualification testing and units are 100% tested. They are manufactured using materials with x and y thermal expansion coefficients compatible with common substrates such as FR4, G10 and polyamide. ELECTRICAL SPECIFICATIONS** Features: DC – 6.0 GHz RF – RF Crossover Low Loss High Isolation Surface Mountable Tape And Reel Convenient Package 100% Tested Lead Free Frequency Port Impedance Return Loss Isolation GHz Ohms dB Min DB Min DC – 2.5 2.5 – 3.6 3.6 – 6.0 50 50 50 20 18 15 Insertion Loss Power dB Max Watts ºC / Watt ºC 0.05 0.10 0.20 30 15 10 143.4 143.4 143.4 -55 to +85 -55 to +85 -55 to +85 50 30 20 Operating Temp. JC **Specification based on performance of unit properly installed on microstrip printed circuit boards with 50 nominal impedance. Specifications subject to change without notice. Outline Drawing Top View (Near-side) .200±.010 [5.08±0.25] 4X GND Side View .071±.007 [1.80±0.18] RF IN/OUT RF IN/OUT .200±.010 [5.08±0.25] RF IN/OUT Bottom View (Far-side) RF IN/OUT Dimensions are in Inches [Millimeters] X2BS Rev A Mechanical Outline RF IN/OUT .020±.004 TYP [0.51±0.10] RF IN/OUT GND .025±.008 [0.65±0.20] RF IN/OUT RF IN/OUT .056±.004 [1.42±0.10] Available on Tape and Reel For Pick and Place Manufacturing. USA/Canada: Toll Free: Europe: .072±.008 [1.83±0.20] (315) 432-8909 (800) 544-2414 +44 2392-232392 Model X2BS Rev. B Typical Performance: 0 GHz. to 6.0 GHz. Phase Balance X2BS 6 Phase Balance (deg) 4 2 0 -2 -4 -6 500 Mounting 1600 2150 2700 3250 3800 Frequency (MHz) 4350 4900 Mounting Footprint In order for Xinger crossovers to work optimally, there must be 50Ω transmission lines leading to and from all of the RF ports. Also, there must be a very good ground to the corners of the crossover to insure proper electrical performance. If either of these two conditions are not satisfied, insertion loss, VSWR and isolation parameters may not meet published specifications. When a surface mount crossover is mounted to a printed circuit board, the primary concerns are; insuring the RF pads of the device are in contact with the circuit trace of the PCB and insuring the ground plane of neither the component nor the PCB is in contact with the RF signal. Since the component is not symmetrical, the crossovers are specifically oriented in the tape and reel. An example of how the PCB footprint could look is shown below. In specific designs, the 50Ω lines need to be adjusted to the unique dielectric coefficients and thicknesses as well as varying pick and place equipment tolerances. USA/Canada: Toll Free: Europe: 1050 (315) 432-8909 (800) 544-2414 +44 2392-232392 Available on Tape and Reel For Pick and Place Manufacturing. To ensure proper electrical and thermal performance there must be a ground plane with 100% solder connection underneath the part Multiple plated thru holes to ground .063 SQ TYP [1.60] 4X 50 Transmission Line .034 TYP [0.86] .034 TYP [0.86] Dimensions are in Inches [Millimeters] X2BS Rev A Mounting Footprint .042 TYP [1.07] 5450 6000