RF2958

The RF2958 is a single-chip transceiver specificallydesigned for IEEE 802.11b applications. The partincludes all required transceiver functions. The receiver RF2958 includes: an LNA and downconverter; complete synthe-sizers and VCO's; direct conversion from IF receiver withvariable gain control; quadrature demodulator; I/Q base-band amplifiers; and, on-chip baseband filters. For thetransmit side, a QPSK modulator and upconverter areprovided along with the synthesizer, VCO, and PA driver.

A minimum number of external components are required,resulting in an ultra-compact low-cost radio design. Two-cell or regulated three-cell (3.6V maximum) battery appli-cations are supported by the part. The RF2958 is alsopart of a 2.4GHz chipset along with our high-efficiencyGaAs HBT PA and the RF3002 Baseband Processor.