RMPA61800 데이터 시트보기 (PDF) - Raytheon Company

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RMPA61800

Dual Channel 6-18 GHz 2 Watt Power Amplifier MMIC

Raytheon Company 

RMPA61800

Dual Channel 6-18 GHz 2 Watt Power

Amplifier MMIC

PRELIMINARY INFORMATION

Application Note

Example of

Assembled

Combiner Module

Recommended

Procedure

for biasing and

operation

CAUTION: LOSS OF GATE VOLTAGE (Vg) WHILE DRAIN VOLTAGE (Vd) IS PRESENT MAY DAMAGE THE

AMPLIFIER. THIS AMPLIFIER IS AN ESD SENSITIVE DEVICE.

The following procedure must be followed to properly test the amplifier:

Step 1: Slowly apply Gate Voltage (typical Vpinch-off=

-1.5V) to terminal Vg.

Step 2: Slowly apply Drain Voltage at Vd (<+5 volts) and

monitor drain current Ids. Adjust negative

voltage Vg to set the drain current (Ids) to

approximately 600 mA per channel. Adjust the

drain voltage Vg to nominal +8 volts (adjust

Gate Voltage Vg, if needed, to maintain the drain

current at Ids.

Step 3: After the bias condition is established, RF input

signal may now be applied at the appropriate

frequency band.

Step 4: Follow Turn-off sequence:

(i) RF input power=off,

(ii) Vd=off,

(iii) Vg=off.

www.raytheonrf.com

Characteristic performance data and specifications are subject to change without notice.

Revised January 25, 2002

Page 4

Raytheon RF Components

362 Lowell Street

Andover, MA 01810

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