HFA3860

HFA3860 Data Sheet July 1998 File Number 4347 11 Mbps Direct Sequence Spread Spectrum Baseband Processor The Intersil HFA3860 Direct Sequence (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 for applications requiring 11 Mbps performance. ™ Features Complete DSSS Baseband Processor Processing Gain . . . . . . . . . . . . . . . . . . . . . . . . . . ≥10.4dB Programmable Data Rate. . . . . . . . 1, 2, 5.5, and 11 Mbps Ultra Small Package . . . . . . . . . . . . . . . . . . . . 7 x 7 x 1mm Single Supply Operation (44MHz Max) . . . . . 2.7V to 3.6V Modulation Methods . . . . . . .DBPSK, DQPSK, and MBOK Supports Full or Half Duplex Operations On-Chip A/D Converters for I/Q Data (3-Bit, 22 MSPS) and RSSI (6-Bit) Similar Pinout to HFA3824 The HFA3860 has on-board A/Ds for analog I and Q inputs, for which the HFA3726 IF QMODEM is recommended. Differential phase shift keying modulation schemes DBPSK and DQPSK, with data scrambling capability are available, along with M-Ary Bi-Orthogonal Keying to provide a variety of data rates. Built-in flexibility allows the HFA3860 to be configured through a general purpose control bus, for a range of applications. A Receive Signal Strength Indicator (RSSI) monitoring function with on-board 6-bit A/D provides Clear Channel Assessment (CCA) to avoid data collisions and optimize network throughput. The HFA3860 is hou...