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SD4590

RF POWER TRANSISTORS 800-960 MHz CELLULAR BASE STATION

STMicroelectronics 

®

SD4590

RF POWER TRANSISTORS

800-960 MHz CELLULAR BASE STATION

ν GOLD METALLIZATION

ν DIFFUSED EMITTER BALLASTING

ν INTERNAL INPUT/OUTPUT MATCHING

ν COMMON EMITTER CONFIGURATION

ν DESIGNED FOR LINEAR OPERATION HIGH

SATURATED POWER CAPABILITY 26 VOLT,

900 MHz PERFORMANCE

ν POUT =150 W MIN.

GAIN = 8.5 dB MIN.

IMD3 = -28dB MAX. @ POUT = 150W PEP

ν INHERENT RUGGEDNESS:

LOAD MISMATCH TOLERANCE OF

5:1 MIN. VSWR

3 dB OVERDRIVE CAPABILITY

ν ESD SENSITIVITY, CLASS 3 (MIL STD-883D

METHOD 3015)

DESCRIPTION

The SD4590 is designed for both analog and

digital cellular base stations over the 800 to 960

MHz frequency range, specifically those systems

requiring the high linearity and efficiency afforded

by class AB operation. Integrated input/output

pre-matching simplifies amplifier design.

Ruggedness, MTTF, and linearity are enhanced

using diffused emitter resistors and

refractory/gold metallization.

ABSOLUTE MAXIMUM RATINGS (Tcase = 25 oC)

S ym b o l

V CBO

V CEO

V EBO

IC

P DISS

Tj

TSTG

Parameter

Collector-Base Voltage

Collector-Emitter Voltage

Emitter-Base Voltage

Device Current

Power Dissipation

Max. O perating Junction Temperature

Storage Temperature

THERMAL DATA

Rth (j-c) Junct ion-Case Thermal Resistance

M208

epoxy sealed

ORDER CODE

BRANDING

SD4590

SD4590

PIN CONNECTION

1. Collector

2. Emitter

3.Base

Value

65

28

3.5

25

300

200

-65 to 150

Uni t

V

V

V

A

W

oC

oC

0.60

oC/ W

March 2000

1/8

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