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Visit www.macomtech.com for additional data sheets and product information.

M/A-COM Technology Solutions Inc. and its affiliates reserve the right to make

changes to the product(s) or information contained herein without notice.

1

250 mW Linear Power Amplifier and T/R Switch

1.8—2.0 GHz

Rev. V2

AM55-0004

ADVANCED:

Data Sheets contain information regarding a product M/A-COM Technology Solutions

is considering for development. Performance is based on target specifications, simulated results,

and/or prototype measurements. Commitment to develop is not guaranteed.

PRELIMINARY:

Data Sheets contain information regarding a product M/A-COM Technology

Solutions has under development. Performance is based on engineering tests. Specifications are

typical. Mechanical outline has been fixed. Engineering samples and/or test data may be available.

Commitment to produce in volume is not guaranteed.

Features

• Operates Over Full PCN/PCS/PHS Bands

• Operates Over +3 V to +5 V Supply Voltage

• On-Chip T/R Switch, Linear Operation to +30 dBm

• Low Cost SSOP-28 Plastic Package

Description

M/A-COM’s AM55-0004 power amplifier/switch integrates

a power amplifier and transmit/receive switch in a low cost

SSOP package. The power amplifier delivers +24 dBm of

linear power with high efficiency and can be operated at

supply voltages as low as 2.7 V. It is ideally suited for

QPSK or other linearly modulated systems in the 1.8 to 2.0

GHz frequency band. The power amplifier/switch is fully

monolithic and requires only one output capacitor for

power match. The T/R switch achieves good insertion loss

and isolation without degrading the overall linearity. The

AM55-0004 is ideally suited for final stage power

amplification in linear TDD systems. The integrated switch

is convenient for duplexing. The AM55-0004 can also be

used as a driver stage for high power systems. Typical

applications include Japanese PHS systems or PCN/PCS

transmit chains. M/A-COM’s AM55-0004 is fabricated

using a mature 0.5-micron gate length GaAs process. The

process

features

full

passivation

for

increased

performance and reliability.

SSOP-28

Parameter

Units

Min.

Typ.

Max.

Linear Gain

dB

22

24

dBm

22.5

24

mA

75

175

275

Input VSWR

2.0:1

T/R Switch

Insertion Loss

dB

0.6

1.0

Input Match

1.5:1

Isolation

dB

15

20

Power Amplifier

Ordering Information

Part Number

Package

AM55-0004

SSOP-28-Lead Plastic Packaging

AM55-0004TR

Forward Tape and Reel*

AM55-0004RTR

Reverse Tape and Reel*

AM55-0004SMB

Designer’s Kit

* If specific reel size is required, consult factory for part number

assignment.

Electrical Specifications

Test conditions: Frequency: 1.9 GHz, VDD1 = VDD2 = 4.8 V ±10%, VG1 adjusted for 30 mA quiescent bias

on VDD1, VG2 adjusted for 65 mA quiescent bias on VDD2, TA= +25°C