TGA4542 Просмотр технического описания (PDF) - TriQuint Semiconductor
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TGA4542 Datasheet PDF : 13 Pages
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TGA4542
37 - 40 GHz 1W Power Amplifier
7
RF Out
8
Vdet
9
Vref
Application Circuit
Output, matched to 50 ohms.
Detector diode output voltage. Varies with RF output power.
Reference diode output voltage.
C11
0.01 uF
Vg
-0.7 V Typical
C10
0.01 uF
R1
10 Ohm
C13
1 uF
C4
100 pF
14 13
C5
C12
100 pF 0.01 uF
12
11
1
RF In
C6
100 pF
C15
1 uF
R3
10 Ohm
Vref
R5
10 9
40k Ohm
8
Vdiff
R4
Vdet
7
RF Out
40k Ohm
Id = 900 mA
6V
C1
100 pF
23
4
5
6
C7
0.01 uF
C2
100 pF
C8
C3
0.01 uF 100 pF
C9
0.01 uF
R2
10 Ohm
C14
1 uF
Vd must be biased from both sides. Vg can be biased from either side.
Bias-up Procedure
Vg set to -1.5 V
Vd set to +6 V
Adjust Vg more positive until quiescent Id is 900 mA.
This will be ~ Vg = -0.7 V
Apply RF signal to RF Input
Bias-down Procedure
Turn off RF supply
Reduce Vg to -1.5V. Ensure Id ~ 0 mA
Turn Vd to 0 V
Turn Vg to 0 V
Preliminary Data Sheet: Rev - 9/15/12
© 2012 TriQuint Semiconductor, Inc.
- 9 of 12 -
Disclaimer: Subject to change without notice
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