.025

0,64

.057

±.003

1,45

±0,08

.0275

+.0025

-.0025

0,7

+0,06

-0,06

9,91 +0,09

-0,1

.3900

+.0037

-.0041

PIN 1

.236

±.008

5,99

±0,2

.004 (0,10)

.007

±.003

0,18

±0,08

.010

+.004

-.001

0,25 +0,1

-0,03

.1540

+.0034

-.0043

3,91

+0,09

-0,11

.015 (0,38) X 45

°

.028

+.022

-.013

0,71

+0,56

-0,33

0-8

°

.0080

+.0018

-.0005

+0,05

-0,01

0,2

Features

Operates Over Full PCN/PCS/PHS Bands

Operates Over +3 V to +5 V Supply Voltage

+24 dBm P

35% PAE @ P

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.

Specifications Subject to Change Without Notice

V2.00

M/A-COM Inc.

s

1011 Pawtucket Boulevard, Lowell, MA 01853 USA

s

Telephone: 800-366-2266

1

250 mW Linear Power Amplifier and T/R Switch

1.8 - 2.0 GHz

AM55-0004

SSOP-28

Preliminary Specifications

Parameter

Units

Min.

Typ.

Max.

Power Amplifier

Linear Gain

dB

22

24

Power Output @ P

dBm

22.5

24

Current From Positive Supply @ P

1dB

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

Typical Electrical Specifications

Test conditions: Frequency: 1.9 GHz, V

V

q

q

q

q

q

q

Part Number

Description

AM55-0004

SSOP 28-Lead Plastic Package

AM55-0004TR

Forward Tape & Reel

*

AM55-0004RTR

Reverse Tape & Reel

*

AM55-0004SMB

Designer’s Kit

Ordering Information

number assignment.

Dimensions are inches over millimeters.