TGA4541-SM(2012) 데이터 시트보기 (PDF) - TriQuint Semiconductor

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TGA4541-SM
(Rev.:2012)

Ka-Band Variable Gain Driver Amplifier

TriQuint Semiconductor 

TGA4541-SM

Ka-Band Variable Gain Driver Amplifier

Application Circuit

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

The TGA4541-SM will be marked with the “4541” designator and a lot code marked below the part designator. The “YY”

represents the last two digits of the year the part was manufactured, the “WW” is the work week, and the “XXXX” is an auto-

generated assembly lot number.

Preliminary Data Sheet: Rev- 05/08/12

© 2012 TriQuint Semiconductor, Inc.

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Disclaimer: Subject to change without notice

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