HFA3424 Datasheet, PDF (1/5 Pages) Intersil Corporation – 2.4GHz - 2.5GHz Low Noise Amplifier

Data Sheet
HFA3424
January 1997 File Number 4131.2
2.4GHz - 2.5GHz Low Noise Amplifier
™ The Intersil 2.4GHz PRISM™ chip set is
a highly integrated five-chip solution for
RF modems employing Direct
Sequence Spread Spectrum (DSSS)
signaling. The HFA3424 2.4GHz -
2.5GHz low noise amplifier is an optional chip that can be
added to the five chips in the PRISM™ chip set. The
HFA3424 offers increased sensitivity for systems targeting
802.11 specifications. (See Figure 1, the Typical Application
Diagram.)
The Intersil HFA3424 PRISM™ is a high performance low
noise amplifier in a low cost SOIC 8 lead surface mount
plastic package. The HFA3424 employs a fully monolithic
design which 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 HFA3424 is ideally suited for use where low noise
figure, high gain, high dynamic range and low power
consumption required. Typical applications include receiver
front ends in the Wireless Local Area Network (WLAN) and
wireless data collection markets in the 2.4GHz Industrial,
Scientific and Medical (ISM) band, as well as standard gain
blocks, buffer amps, driver amps and IF amps in both fixed
and portable systems.
Pinout
HFA3424
(SOIC)
TOP VIEW
GND 1
V_BIAS 2
RF IN 3
GND 4
8 GND
7 V_DD
6 RF OUT
5 GND
Features
• Low Noise Figure . . . . . . . . . . . . . . . . . . . . . . . . . . 1.90dB
• High Gain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14dB
• Low Power Consumption . . . . . . . . . . . . . . 3V to 5V, 5mA
• High Dynamic Range
• DC Decoupled RF Input and Output
• No External RF Tuning Elements Necessary
• Low Cost SOIC 8 Lead Plastic Package
Applications
• Systems Targeting IEEE 802.11 Standard
• TDD Quadrature-Modulated Communication
Systems
• Wireless Local Area Networks
• PCMCIA Wireless Transceivers
• ISM Systems
• TDMA Packet Protocol Radios
• PCS/Wireless PBX
• Wireless Local Loop
Ordering Information
TEMP.
PART NUMBER RANGE (^oC)
PACKAGE
HFA3424IB
HFA3424IB96
-40 to 85
-40 to 85
8 Ld SOIC
Tape and Reel
PKG.
NO.
M8.15
Functional Block Diagram
V_DD
RF OUT
LNA 1
EXTENDED RF IN
BIAS
2-7
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
http://www.intersil.com or 407-727-9207 | Copyright © Intersil Corporation 1999
PRISM® is a registered trademark of Intersil Corporation. PRISM logo is a trademark of Intersil Corporation.