BD2425NnRF Anaren

Model BD2425NnRF Rev B Ultra Low Profile 0404 Balun For nRF24L01 and nRF24L01+ (Anaren Application Note Ann-3001) Description The BD2425NnRF is a low cost, low profile sub-miniature unbalanced to balanced transformer designed for differential inputs and output, tuned to provide optimal performance in tandem with the Nordic Semiconductor nRF24L01 and nRF24L01+. The BD2425NnRF is ideal for high volume manufacturing and delivers higher performance than a discrete implementation. The BD2425NnRF has an unbalanced port impedance of 50 and matched balanced port impedance when used in the specified matching network, which is the conjugate match of the nRF24L01 and nRF24L01+ devices. This transformation enables single ended signals to be applied to differential ports on the nRF24L01 and nRF24L01+. The BD2425NnRF is available on tape and reel for pick and place high volume manufacturing. Detailed Electrical Specifications: Specifications subject to change without notice. ROOM (25C) Features: Parameter Min. Typ. Max Unit 2400 2525 MHz Frequency 2400 2525 MHz 0.57 mm Height Profile Matched to Nordic Semiconductor Unbalanced Port Impedance** 50 nRF24L01 and nRF24L01+ Balanced Port Impedance** Matched Low Insertion Loss dB Surface Mountable Return Loss** 10.2 Tape & Reel dB Insertion Loss* ** 1.25 Non-conductive Surface Power Handling 1 Watts RoHS Compliant Operating Temperature -55 +85 C * Insertion Loss stated at room temperature (Insertion Loss is approximately 0.1 dB higher at +85 C) ** Stated performance assumes proper matching network found in application note: Ann-3001 Outline Drawing Top View (Near-side) Side View Bottom View (Far-side) .012 0.30 .001 .022 .004 1 .041 0.03 0.57 0.12 0.30 2 1.050.10 3x.010 .004 .041 0.25 1.050.10 4 3 .020 0.50 3x.010 0.25 .020 0.50 Pin Designation GND / DC Feed 1 + RF GND 2 Unbalanced Port 3 Balanced Port Dimensions are in Inches Millimeters 4 Balanced Port Mechanical Outline Tolerances are Non-Cumulative USA/Canada: (315) 432-8909 Available on Tape Toll Free: and Reel for Pick and (800) 411-6596 Place Manufacturing. +44 2392-232392 Europe: Model BD2425NnRF Rev B 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 o and mechanical stability having X and Y thermal coefficient of expansion (CTE) of 17 ppm/ C. An example of the PCB footprint used in the testing of these parts is shown below. An example of a DC-biased footprint is also 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 3X .011 0.29 Plated thru .008 0.21 hole to ground 3X .011 0.29 .014 0.36 .020 .008 0.21 0.50 3X Transmission .020 Line 0.50 Circuit Pattern Footprint Pad (s) Dimensions are in Inches Millimeters Solder Resist Mounting Footprint USA/Canada: (315) 432-8909 Available on Tape and Reel for Pick and Place Toll Free: (800) 411-6596 Manufacturing. Europe: +44 2392-232392