LX803 参数 Datasheet PDF下载

polyfet rf devices

General Description

LX803

Silicon VDMOS and LDMOS

transistors designed specifically

SILICON GATE ENHANCEMENT MODE

for broadband RF applications.

RF POWER LDMOS TRANSISTOR

Suitable for Military Radios,

Cellular and Paging Amplifier Base

45 Watts Single Ended

Stations, Broadcast FM/AM, MRI,

Laser Driver and others.

Package Style LX2

TM

"Polyfet" process features low

feedback and output capacitances

HIGH EFFICIENCY, LINEAR,

resulting in high F

t

transistors with

HIGH GAIN, LOW NOISE

high input impedance and high

efficiency.

o

ABSOLUTE MAXIMUM RATINGS (TC = 25 C)

Total

Device

Dissipation

120 Watts

Junction to

Case Thermal

Resistance

1.25

o

C/W

Maximum

Junction

Temperature

200

o

C

Storage

Temperature

DC Drain

Current

Drain to

Gate

Voltage

70 V

Drain to

Source

Voltage

70 V

Gate to

Source

Voltage

20 V

-65

o

C to 150

o

C

6 A

RF CHARACTERISTICS (

SYMBOL

Gps

PARAMETER

Common Source Power Gain

Drain Efficiency

Load Mismatch Tolerance

MIN

11

55

TYP

45WATTS OUTPUT )

MAX

UNITS

dB

%

20:1

Relative

TEST CONDITIONS

Idq = 1.2 A, Vds = 28.0 V, F = 1000 MHz

Idq = 1.2 A, Vds = 28.0 V, F = 1000 MHz

Idq = 1.2 A, Vds = 28.0 V, F = 1000 MHz

η

VSWR

ELECTRICAL CHARACTERISTICS (EACH SIDE)

SYMBOL

Bvdss

Idss

Igss

Vgs

gM

Rdson

Idsat

Ciss

Crss

Coss

PARAMETER

Drain Breakdown Voltage

Zero Bias Drain Current

Gate Leakage Current

Gate Bias for Drain Current

Forward Transconductance

Saturation Resistance

Saturation Current

Common Source Input Capacitance

Common Source Feedback Capacitance

Common Source Output Capacitance

1

2.4

0.35

16.5

90

3

45

MIN

65

3

1

7

TYP

MAX

UNITS

V

mA

uA

V

Mho

Ohm

Amp

pF

pF

pF

TEST CONDITIONS

Ids =

0.2 A,

Vgs = 0V

Vgs = 0V

Vgs = 30V

Vgs = Vds

Vds = 28.0 V,

Vds = 0 V,

Ids = 0.3 A,

Vds = 10V, Vgs = 5V

Vgs = 20V, Ids = 7.5 A

Vgs = 20V, Vds = 10V

Vds = 28.0 V, Vgs = 0V, F = 1 MHz

Vds = 28.0 V, Vgs = 0V, F = 1 MHz

Vds = 28.0 V, Vgs = 0V, F = 1 MHz

POLYFET RF DEVICES

REVISION 8/31/99

1110 Avenida Acaso, Camarillo, CA 93012 TEL:(805) 484-4210 FAX:(805) 484-3393 EMAIL:Sales@polyfet.com URL:www.polyfet.com