This varactor diode is ideal for use in low noise and wideband UHF and VHF VCOs, as well as in high volume, low-cost battery powered tuning circuits in military, automotive, and consumer markets. It features low series resistance and a high capacitance ratio, making it ideal for use in in low-phase noise VCOs in wireless systems at frequencies up to and above 2.5 GHz. For more information, download the datasheet.
The RF5725 is a single-chip integrated front-end module (FEM) for high performance WLAN applications in the 2.4GHz to 2.5GHz ISM band. This FEM greatly reduces the number of external components, minimizing footprint and assembly cost of the overall 802.11b/g solution. The RF5725 has an integrated b/g power amplifier, LNA, a Coupler Power detector, and TX filtering. It also is capable of switching between WLAN RX, WLAN TX, and BTH RX/TX operations. This device is manufactured using GaAs HBT and pHEMT processes on a 3mmx3mmx0.5mm 16-pin QFN package. This module meets or exceeds the RF front-end needs of 802.11b/g WLAN RF systems.