Product Description

The RF2948B is a monolithic integrated circuit specifically designed for direct-sequence spread-spectrum systems operating in the 2.4GHz ISM band. The part includes: a direct conversion from IF receiver with variable gain control; quadrature demodulator; I/Q baseband amplifiers; and, on-chip programmable baseband filters.

Features

• 45MHz to 500MHz IF Quad Demod

• On-Chip Variable Baseband Filters

• Quadrature Modulator and Upconverter

• 2.7V to 3.6V Operation

• Part of IEEE802.11b Chipset

• 2.4GHz PA Driver

Typical Applications

• IEEE 802.11b WLANs

• Wireless Residential Gateways

• Secure Communication Links

• High Speed Digital Links

• Wireless Security

• Digital Cordless Telephones