M521 MA-COM [M/A-COM Technology Solutions, Inc.], M521 Datasheet - Page 3

• Manufacturer Part Number: M521
• Description: Positive Voltage Control of GaAs MMIC Control Devices
• Manufacturer: MA-COM [M/A-COM Technology Solutions, Inc.]

3
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Positive Voltage Control of
GaAs MMIC Control Devices
Application Note
M521
The AT-250 is a VVA that can, similarly, be floated
for positive bias operation as shown in Figure 3.
RF1
RF2
Positive Voltage Control Configuration
C1
R1
+5V
C2
8
1
of the AT-250
C3
Figure 3.
7
2
AT-250
C4
6
3
5
4
R2
Values:
C1-C4: 1000pF
R1-R2: 10 kΩ
+5V
A
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Rev. V3