ISL3684 Intersil Corporation, ISL3684 Datasheet

ISL3684

Manufacturer Part Number

ISL3684

Description

Direct Down Conversion Transceiver

Manufacturer

Intersil Corporation

Datasheet

1.ISL3684.pdf (1 pages)

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TX_BB_GND

TX_BB_VCC

LNA_GND

LNA_VCC

LNA_IN+

TX_GND

TX_AGC

LNA_IN-

TX_OUT

TX_VCC

SHIELD

Direct Down Conversion Transceiver

ISL3684 interfaces directly with Intersil's ISL3871 Integrated

LAN Medium Access Controller with Baseband Processor.

The addition of the ISL3984 Power Amplifier and ISL3084

5GHz VCO completes the PRISM 3 LAN radio application.

Pinout

PE1

PR O P R I ET A R Y

RECEIVE SECTION

TRANSMIT SECTION

PLL/SYNTHESIZER

The Intersil ISL3684 Wireless LAN

Integrated RF Front End is part the

PRISM 3, 2.4HGz 11Mbit, 802.11b

compliant radio chipset. The

TOP VIEW

ISL3684

MLFP

Data Sheet

PRISM logo is a trademark of Intersil Corporation. Microsoft® and Windows® are registered trademarks of Microsoft Corporation.

1-888-INTERSIL or 321-724-7143

RX_I+

RX_I-

RX_AGC_GND

RX_AGC_VCC

RX_Q+

RX_Q-

TX_I+

TX_I-

1.2_REF

TX_Q+

TX_Q-

PRE_VDD

PRE_GND

CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.

Features

• Highly integrated RF to baseband solution

• Frequency of operation . . . . . . . . . . . . 2.4GHz to 2.5GHz

• Low supply operation . . . . . . . . . . . . . . . . . . . 2.7V to 3.3V

• Noise figure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.4dB

• Voltage gain . . . . . . . . . . . . . . . . . . . . . . -2.5dB to 88.5dB

• Gain and phase balance

• TX/RX switching speed . . . . . . . . . . . . . . . . . . . . . . . <1 s

• Direct simple interface to ISL3871

Applications

• PC card wireless LAN adapters

• High data rate wireless LAN systems targeting

• Spread spectrum WLAN RF modems

• TDMA or CSMA packet protocol radios

• PCI wireless LAN cards

• ISA, ISA PnP WLAN cards

• PCN / wireless PBX / wireless local loop

IEEE802.11b standard

March 2002

Intersil (and design) is a registered trademark of Intersil Americas Inc.

ISL3684

0.5dB, 2deg.

FN8001.2

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