9

TGA4903-SM

April 2012 © Rev A

TriQuint Semiconductor: www. triquint.com (972)994-8465 Fax (972)994-8504 Info-mmw@tqs.com

Electrical Schematic

Bias Procedures

Bias-up Procedure

Bias-down Procedure

Connect Vg1 and Vg2 together. (“Vg”)

Connect Vd1 and Vd2 together. (“Vd”)

Turn off RF supply

Vg set to -1.5 V

Reduce Vg to -1.5V. Ensure Id ~ 0 mA

Vd set to +5 V

Turn Vd to 0 V

Adjust Vg more positive until Id is 170 mA. This will

be ~ Vg = -0.6 V

Turn Vg to 0 V

Apply RF signal to input