SPA-2118 데이터 시트보기 (PDF) - Stanford Microdevices

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SPA-2118

850 MHz, 1 Watt power amplifier with active bias.

Stanford Microdevices 

Product Description

Stanford Microdevices’ SPA-2118 is a high efficiency GaAs

Heterojunction Bipolar Transistor (HBT) amplifier housed in

a low-cost surface-mountable plastic package. These HBT

amplifiers are fabricated using molecular beam epitaxial

growth technology which produces reliable and consistent

performance from wafer to wafer and lot to lot.

SPA-2118

Preliminary

850 MHz 1 Watt Power Amplifier

with Active Bias

This product is specifically designed for use as a driver

amplifier for infrastructure equipment in the 850 MHz band.

Its high linearity makes it an ideal choice for multi-carrier and

digital applications.

VC1

VBIAS

Active

Bias

RFIN

VPC2

RFOUT/

VC2

Product Features

• High Linearity Performance:

+48 dBm Typ. OIP3 at 900 MHz

+24 dBm IS-95 CDMA Channel Power

at -45 dBc ACP

• On-chip Active Bias Control

• High Gain: 32.5 dB Typ.

• Patented High Reliability GaAsHBT Technology

• Surface-Mountable Plastic Package

Applications

• IS-95 CDMA Systems

• Multi-Carrier Applications

• AMPS, ISM Applications

Symbol

f0

P1dB

S21

VSWR

OIP3

NF

Icc

Rth j-l

Parameters: Test Conditions:

Z0 = 50 Ohms Temp = 25ºC, Vcc=5.0V

Frequency of Operation

Output Power at 1dB Compression

Small Signal Gain

Input VSWR

Output Third Order Intercept Point

Power out per tone = +14dBm

Noise Figure

Device Current

Ibias = 10mA, Ic1 = 70mA, Ic2 = 320mA

Thermal Resistance (junction - lead)

Units

Min.

MHz

850

dBm

dB

-

dBm

dB

mA

ºC/W

Typ.

900

30.5

32.5

1.5:1

48

5.0

400

32

Max.

950

The information provided herein is believed to be reliable at press time. Stanford Microdevices assumes no responsibility for inaccuracies or omissions.

Stanford Microdevices assumes no responsibility for the use of this information, and all such information shall be entirely at the user’s own risk. Prices and specifications are

subject to change without notice. No patent rights or licenses to any of the circuits described herein are implied or granted to any third party. Stanford Microdevices does not

authorize or warrant any Stanford Microdevices product for use in life-support devices and/or systems.

Copyright 2001 Stanford Microdevices, Inc. All worldwide rights reserved.

726 Palomar Ave., Sunnyvale, CA 94085

Phone: (800) SMI-MMIC

http://www.stanfordmicro.com

1

EDS-102012 Rev A

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