TGA4541-SM 데이터 시트보기 (PDF) - TriQuint Semiconductor

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TGA4541-SM

Ka-Band Variable Gain Driver Amplifier

TriQuint Semiconductor 

Application Circuit

TGA4541-SM

Ka-Band Variable Gain Driver Amplifier

Vd1

Vc

4541

RF Input

YYWW

XXXX

RF Output

Vg

Vd2 + Vd3

Bias-up Procedure

Set Vg to -1.5 V

Set Vd1 to 5 V

Set Vd2+Vd3 to 5 V

Set Vc to -1.00 V

Adjust Vg more positive until quiescent Id2+Id3 = 270 mA,

Id1 = 60 mA, Vg ~ -0.7 V typical

Apply RF signal

Vd1 and Vd2+Vd3 should be separately monitored.

Bias-down Procedure

Turn off RF supply

Reduce Vg to -1.5 V

Set Vc to 0 V

Reduce Vd2+Vd3 to 0 V

Reduce Vd1 to 0 V

Datasheet: Rev A 08-30-13

© 2013 TriQuint

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