PSoC 4 BLE also simplifies RF PC board design. Likewise, designing an antenna matching network is not easy, it is a non-trivial job. This is because AMNs are sensitive to PCB layout, with parasitics which require the user to tune it for the best RF performance. The tuning of the antenna matching network increases with the complexity of tuning and increases dramatically when more external components are used. A typical AMN can use up to nine external components, whereas Cypress' AMN only uses two because the balun is integrated. Shown on this slide is an example using Cypress' AMN solution. It requires the use of two external components, an inductor and a capacitor, whereas with Competitor 1 seven external components are used, and with the Competitor 2 solution nine external components must be used. The PSoC 4 BLE integrated balun simplifies the RF PC board design and reduces the PCB footprint. Additionally it reduces the BOM cost because the user does not have to go purchase and install external components or an external balun IC.