ISL3084IR Intersil Corporation, ISL3084IR Datasheet

ISL3084IR

Manufacturer Part Number

ISL3084IR

Description

Manufacturer

Intersil Corporation

Datasheet

1.ISL3084IR.pdf (4 pages)

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Download datasheet (118Kb)

5GHz VCO

A fully integrated VCO requiring no external elements such

as inductors and varactors greatly simplifies low cost local

oscillator synthesized applications.

Included in this differential design is a low-power standby

function and a stable process and temperature biasing

operation.

The ISL3084 is housed in a 16 lead QFN package

well-suited for PCMCIA and miniPCI board applications.

Pinout

Pin Descriptions

3, 4, 7, 8, 9, 13, 14

PIN NUMBER

2, 6, 12

Paddle

VTUNE

GND

VCC

FILTER CAP1

FILTER CAP2

The ISL3084 is a 5GHz SiGe

monolithic VCO circuit designed to

simplify and reduce the cost and size

of miniature wireless transceivers.

ISL3084 (QFN)

VTUNE

NAME

OSC+

OSC-

GND

TOP VIEW

VCC

N/A

Data Sheet

Input tuning voltage from loop filter. Sensitivity to external injected noise to KVCO. Careful noise-free

layout recommended.

Supply pins. Requires high quality capacitor RF decoupling. Phase noise behavior proportional to supply

pushing specifications. Use good quality, low-frequency decoupling/filtering techniques.

Power enable control pin: VCO enabled high.

Differential VCO output. Terminate into 100: differential impedance. Terminate one end into 50: when

single end output with equivalent loss of power.

Use high quality .68

Ground

Floating paddle. Grounding is recommended.

VCC

OSC+

OSC-

GND

PRISM® is a registered trademark of Intersil Americas Inc. PRISM and design is a trademark of Intersil Americas Inc.

1-888-INTERSIL or 321-724-7143

F filter capacitor to ground.

F filter capacitor to VCC.

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

Features

• Single Supply . . . . . . . . . . . . . . . . . . . . . . . . . 2.7V to 3.3V

• Frequency . . . . . . . . . . . . . . . . . . . . . . . . . 4.9GHz typical

• Fully Integrated/No External Varactors or Resonators

• Isolation Output Buffer/Reduced Load Pulling

• Differential Design/Reduced Spurs

• Digitally Controlled Power Down Mode

• QFN Package:

Applications

• Systems Targeting IEEE802.11b, 11Mbps Standard

• Only required VCO function for Intersil PRISM“3 chip set

• WLAN Applications.

• PCMCIA Wireless Transceivers

• TDMA Packet Protocol Radios

Simplified Block Diagram

Ordering Information

ISL3084IR

ISL3084IR-TK

PART NUMBER TEMP. RANGE (

Required

- Compliant to JEDEC PUB95 MO-220 QFN - Quad Flat

- Near Chip Scale Package footprint, which improves

VTUNE

No Leads - Package Outline

PCB efficiency and has a thinner profile

DESCRIPTION

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

May 2003

BIAS

GND

VCC

-40 to 85

VCO

GND

VCC

16 Ld QFN

Tape and Reel

PACKAGE

GND

VCC

ISL3084

FN5042.3

PKG. NO.

L16.4x4

OSC+

OSC-

Related parts for ISL3084IR

ISL3084IR Summary of contents

Page 1

... VTUNE 10 OSC GND Ordering Information PART NUMBER TEMP. RANGE ( ISL3084IR ISL3084IR-TK DESCRIPTION P F filter capacitor to ground filter capacitor to VCC. CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures. | 1-888-INTERSIL or 321-724-7143 PRISM® registered trademark of Intersil Americas Inc. PRISM and design is a trademark of Intersil Americas Inc. ...

Page 2

Absolute Maximum Ratings Supply Voltage ...

Page 3

Typical Application PLL LOOP FILTER 3 ISL3084 1000P .68 .68 VCC VTUNE VCC OSC+ OSC- GND GND GND POWER ENABLE WELL FILTERED VCC 3.9PF LO_OUT 3.3PF 2:1 BALUM 3.3PF ...

Page 4

... Intersil Corporation’s quality certifications can be viewed at www.intersil.com/design/quality Intersil products are sold by description only. Intersil Corporation reserves the right to make changes in circuit design, software and/or specifications at any time without notice. Accordingly, the reader is cautioned to verify that data sheets are current before placing orders. Information furnished by Intersil is believed to be accurate and reliable. However, no responsibility is assumed by Intersil or its subsidiaries for its use ...

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