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HFA3861B - Direct Sequence Spread Spectrum Baseband Processor

Download the HFA3861B datasheet PDF. This datasheet also covers the HFA variant, as both devices belong to the same direct sequence spread spectrum baseband processor family and are provided as variant models within a single manufacturer datasheet.

General Description

NAME VDDA (Analog) VDDD (Digital) GNDa (Analog) PIN 12, 17, 22, 31 2, 8, 37, 57 9, 15, 20, 25, 28, TYPE I/O Power Power Ground Ground I I I I O DESCRIPTION DC power supply 2.7V - 3.6V (Not Hard wired Together On Chip).

DC power supply 2.7 - 3.6V.

Key Features

  • Complete DSSS Baseband Processor.
  • 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 D.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (HFA-386.pdf) that lists specifications for multiple related part numbers.

Full PDF Text Transcription for HFA3861B (Reference)

Note: Below is a high-fidelity text extraction (approx. 800 characters) for HFA3861B. For precise diagrams, and layout, please refer to the original PDF.

HFA3861B TM Data Sheet February 2002 FN4816.2 Direct Sequence Spread Spectrum Baseband Processor The Intersil HFA3861B Direct Sequence Spread Spectrum (DSSS) baseband pro...

View more extracted text
Intersil HFA3861B Direct Sequence Spread Spectrum (DSSS) baseband processor is part of the PRISM® 2.4GHz WLAN Chip Set, and contains all the functions necessary for a full or half duplex packet baseband transceiver. The HFA3861B has on-board A/D’s and D/A for analog I and Q inputs and outputs, for which the HFA3783 IF QMODEM is recommended. Differential phase shift keying modulation schemes DBPSK and DQPSK, with data scrambling capability, are available along with Complementary Code Keying to provide a variety of data rates. Built-in flexibility allows the HFA3861B to be configured through a general purpose control bus, for

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