TGA4543

40.5 - 43.5 GHz Power Amplifier

Preliminary Data Sheet: Rev

– 9/15/12

- 9 of 12 -

Disclaimer: Subject to change without notice

© 2012 TriQuint Semiconductor, Inc.

Connecting the Digital World to the Global Network

®

Application Circuit

Vd must be biased from both sides. Vg can be biased from either side.

Bias-up Procedure

Bias-down Procedure

Vg set to -1.5 V

Turn off RF supply

Vd set to +6 V

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

Adjust Vg more positive until quiescent Id is 900 mA.

This will be ~ Vg = -0.7 V

Turn Vd to 0 V

Apply RF signal to RF Input

Turn Vg to 0 V

Vref

Id = 900 mA

Vdet

Vdiff

RF Out

RF In

11

12

13

14

5

4

3

6

2

9

10

8

7

1

Vg

-0.7 V Typical

C1

100 pF

C7

0.01 uF

C2

100 pF

C3

100 pF

C4

100 pF

C5

100 pF

C6

100 pF

C8

0.01 uF

C9

0.01 uF

C10

0.01 uF

C11

0.01 uF

C12

0.01 uF

R1

10 Ohm

C13

1 uF

C14

1 uF

R2

10 Ohm

R3

10 Ohm

C15

1 uF

R5

40k Ohm

R4

40k Ohm

6 V