High Power Multi-Throw PIN Diode Switch Modules

V5

MA8334 Series

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Features

 SPDT and SP3T Series Diode Designs

 Low Intermodulation Distortion, 80 dBc

 High Average Power, 100 W

 Wide Bandwidth, 10 MHz to 1000 MHz

 Low Insertion Loss

 High Isolation

 RoHS Compliant

Description and Applications

M/A-COM Technology Solutions MA8334 Series

of multi-throw high power switch modules are

SPDT and SP3T devices intended for use from

10 MHz to 1000 MHz. They are designed to func-

tion with an input power of 100 watts, CW, into a

50 Ω load with a nominal source VSWR of 1.3:1.

These switch modules are constructed using ad-

vanced hybrid technology and utilize PIN diode

chips that have been optimized for low loss and

high reliability. These switch modules make use of

M/A-COM Tech’s, high voltage, CERMACHIP™

PIN diode chip distinguished by its low thermal

resistance and low intermodulation distortion. Ap-

plications for the MA8334 switch modules include

100W incident power T/R antenna and diversity

switches. Typical bias conditions for nominal

switch operation are +50mA @ +1V for the low

loss condition and -100V @ 0 mA for isolation.

1. Operation of this device above any one of these parameters

may cause permanent damage.

Parameter

Absolute Maximum

Reverse Voltage

Voltage Rating per Diode

Forward Current

+ 250 mA per diode

Operating Temperature

-65 °C to +125 °C

Storage Temperature

-65 °C to +150 °C

Junction Temperature

+175 °C

Power Dissipation

5 W @ + 25 °C .

derated to 0 W @ + 125 °C .

Circuit for Common Cathode Biasing

Internal Wiring Diagram

Recommended D.C. Bias :

Low Loss: +50 mA @+ 1V, Isolation:-100V @ 0mA

MA

8334

-004

MA

8334

-001

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