this is information on a product in full production. november 2015 docid028619 rev 1 1/11 11 balf-cc25-02d3 50 ohm, conjugate match to cc2541 transformer balun datasheet ? production data features ? 2.45 ghz balun with integrated matching network ? matching optimized for following cc2541 ? low insertion loss ? low amplitude imbalance ? low phase imbalance ? coated flip-chip on glass ? small footprint: < 0.88 mm2 benefits ? very low profile ? high rf performance ? pcb space saving versus discrete solution ? bom count reduction ? efficient manufacturability description stmicroelectronics BAL-CC25-02D3 is an ultra miniature balun which integrates a matching network in a monolithic glass substrate. this has been customized for the cc2541 rf transceivers. it?s a design using stmicroelectronics ipd (integrated passive device) technology on non- conductive glass substrate to optimize rf performance. figure 1. pin configuration (top view) figure 2. application schematic (top view) ) o l s & |