MGA-72543-TR1 Avago Technologies US Inc., MGA-72543-TR1 Datasheet

MGA-72543-TR1

Manufacturer Part Number

MGA-72543-TR1

Description

IC,Microwave/Millimeter Wave Amplifier,GAAS,SOT-343R,PLASTIC

Manufacturer

Avago Technologies US Inc.

Datasheet

1.MGA-72543.pdf (21 pages)

Specifications of MGA-72543-TR1

Lead Free Status / RoHS Status

Contains lead / RoHS non-compliant

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Download datasheet (406Kb)

MGA-72543

PHEMT* Low Noise Amplifier with Bypass Switch

Data Sheet

Description

Avago’s MGA-72543 is an economical, easy-to-use GaAs

MMIC Low Noise Amplifier (LNA),which is designed for an

adaptive CDMA receiver LNA and adaptive CDMA transmit

driver amplifier.

The MGA-72543 features a minimum noise figure of 1.4 dB

and 14 dB associated gain from a single stage, feedback

FET amplifier. The output is internally matched to 50Ω.

The input is optimally internally matched for lowest noise

figure into 50Ω. The input may be additionally externally

matched for low VSWR through the addition of a single

s eries inductor. When set into the bypass mode,both input

and output are internally matched to 50Ω.

The MGA-72543 offers an integrated solution of LNA with

adjustable IIP

level for the receiver’s linearity requirements. The LNA has

a bypass switch function,which sets the current to zero

and provides low insertion loss. The bypass mode also

boosts dynamic range when high level signal is being

received.

For the CDMA driver amplifier applications, the MGA-

72543 provides suitable gain and linearity to meet the

ACPR requirements when the handset transmits the

highest power. When transmitting lower power, the MGA-

72543 can be bypassed, saving the drawing current.

The MGA-72543 is a GaAs MMIC, processed on Avago’s

cost effective PHEMT (Pseudomorphic High Electron Mo-

bility Transistor). It is housed in the SOT343 (SC70 4-lead)

package, and is part of the Avago Technologies CDMAd-

vantage RF chipset.

*Pseudomorphic High Electron Mobility Transistor

. The IIP

Attention: Observe precautions for

handling electrostatic sensitive devices.

ESD Machine Model (Class A)

ESD Human Body Model (Class 0)

Refer to Avago Application Note A004R:

Electrostatic Discharge Damage and Control.

can be fixed to a desired current

Pin Connections and Package Marking

Surface Mount Package

SOT-343 (SC-70)

Package marking is 3 characters. The last character represents

date code.

Features

• Lead-free Option Available

• Operating Frequency: 0.1 GHz ~ 6.0 GHz

• Noise Figure: 1.4 dB at 2 GHz

• Gain: 14 dB at 2 GHz

• Bypass Switch on Chip Loss = -2.5 dB (Id <5 µA)

• Adjustable Input IP3: +2 to +14 dBm

• 2.7 V to 4.2 V Operation

• Very Small Surface Mount Package

Applications

• CDMA (IS-95, J-STD-008) Receiver LNA Transmit

• TDMA (IS-136)Handsets

INPUT

& V

GND

IIP3 = +35 dBm

Driver Amp

ref

GND

OUTPUT

& V

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