HFA3421 Intersil Corporation, HFA3421 Datasheet

HFA3421

Manufacturer Part Number

HFA3421

Description

1.7GHz - 2.3GHz Low Noise Amplifier

Manufacturer

Intersil Corporation

Datasheet

1.HFA3421.pdf (3 pages)

Specifications of HFA3421

9710

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1.7GHz - 2.3GHz Low Noise Ampliﬁer

eliminates the need for external tuning networks. It can be

biased using 3V or 5V supplies and has an option for biasing

at higher currents for increased dynamic range.

The HFA3421 is ideally suited for use where low noise

ﬁgure, high gain, high dynamic range and low power

consumption are required. Typical applications include

receiver front ends in the Wireless Local Loop (WLL)

systems, as well as standard gain blocks, buffer amps, driver

amps and IF amps in both ﬁxed and portable systems.

Ordering Information

Pinout

HFA3421IB

HFA3421IB96

PART NUMBER

RF IN

GND

BIAS

RANGE (

The Intersil HFA3421 PRISM® is a high

performance low noise ampliﬁer in a

low cost SOIC 8 lead surface mount

plastic package. The HFA3421 employs

a fully monolithic design which

-40 to 85

TEMP.

TOP VIEW

HFA3421

(SOIC)

2-1

8 Ld SOIC

Tape and Reel

1-888-INTERSIL or 321-724-7143

Data Sheet

PACKAGE

GND

RF OUT

GND

M8.15

PKG.

NO.

PRISM® is a registered trademark of Intersil Corporation. PRISM logo is a trademark of Intersil Corporation.

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

Intersil and Design is a trademark of Intersil Corporation.

Features

• Low Noise Figure . . . . . . . . . . . . . . . . . . . . . . . . . . 1.65dB

• High Gain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20dB

• Low Power Consumption . . . . . . . . . . . . . . 3V to 5V, 8mA

• High Dynamic Range

• DC Decoupled RF Input and Output

• No External RF Tuning Elements Necessary

• Low Cost SOIC 8 Lead Plastic Package

Applications

• Wireless Local Loop

• TDD Quadrature-Modulated Communication Systems

• Wireless Local Area Networks

• PCMCIA Wireless Transceivers

• TDMA Packet Protocol Radio

• PCS/Wireless PBX

Functional Block Diagram

September 1997

EXTENDED

BIAS

RF OUT

RF IN

File Number

LNA 1

HFA3421

Intersil Corporation 2000

4288.1

Related parts for HFA3421

HFA3421 Summary of contents

Page 1

... It can be biased using supplies and has an option for biasing at higher currents for increased dynamic range. The HFA3421 is ideally suited for use where low noise ﬁgure, high gain, high dynamic range and low power consumption are required. Typical applications include ...

Page 2

... Typical Performance Curves 24 22 5V, 8mA 20 3V, 8mA 18 16 1.5 1.6 1.7 1.8 1.9 FREQUENCY (GHz) FIGURE 1. GAIN vs FREQUENCY 2-2 HFA3421 Thermal Information Thermal Resistance (Typical, Note 2) DC SOIC Package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Maximum Storage Temperature Range . . . . . . . . . . -65 Maximum Lead Temperature (Solder 10s .300 (SOIC - Lead Tips Only +5V -30dBm ...

Page 3

... EXTENDED BIAS Open Ground PIN 2 ALLOWS FOR AN EXTERNAL RESISTOR USED TO GROUND FOR AN OPTIONAL BB 20mA CURRENT OPERATION. RECOMMENDED VALUES FOR THE CHIP RESISTOR ARE FIGURE 7. REFERENCE APPLICATION/TEST DESIGN SETUP SCHEMATIC: LOW NOISE AMPLIFIER 2-3 HFA3421 (Continued 5V, 8mA 0 -2 ...

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