The Intersil HFA3863 Direct Sequence Spread Spectrum (DSSS) baseband processor is part of the PRISM® 2.4GHz radio chipset, and contains all the functions necessary for a full or half duplex packet baseband transceiver.

Features
• Complete DSSS Baseband Processor
• RAKE Receiver with Decision Feedback Equalizer
• Processing Gain . . . . . . . . . . . . . . . . . . . . FCC Compliant
• Programmable Data Rate. . . . . . . . 1, 2, 5.5, and 11Mbps
• Ultra Small Package . . . . . . . . . . . . . . . . . . . . . 10 x 10mm
• Single Supply Operation (44MHz Max) . . . . . 2.7V to 3.6V
• Modulation Methods . . . . . . . . DBPSK, DQPSK, and CCK
• Supports Full or Half Duplex Operations
• On-Chip A/D and D/A Converters for I/Q Data (6-Bit, 22MSPS), AGC, and Adaptive Power Control (7-Bit)
• Targeted for Multipath Delay Spreads 125ns at 11Mbps, 250ns at 5.5Mbps
• Supports Short Preamble and Antenna Diversity

Applications
• Enterprise WLAN Systems
• Systems Targeting IEEE 802.11b Standard
• DSSS PCMCIA or Mini-PCI Wireless Transceiver
• Spread Spectrum WLAN RF Modems
• TDMA or CSMA Packet Protocol Radios
• Part 15 Compliant Radio Links
• Portable PDA/Notebook Computer
• Wireless Digital Audio, Video, Multimedia
• PCN / Wireless PBX / Wireless Local Loop
• Wireless Bridges