HMC499LC4 Datasheet, PDF (5/6 Pages) Hittite Microwave Corporation – SMT PHEMT MEDIUM POWER AMPLIFIER, 21 - 32 GHz

v05.0514
HMC499LC4
SMT PHEMT MEDIUM POWER AMPLIFIER
21 - 32 GHz
Pin Descriptions
Pin Number
1, 5 - 8, 10 - 14,
18, 20, 22, 24
Function
N/C
2, 4, 15, 17
GND
3
RFIN
Description
No connection required. These pins may be connected to RF/
DC ground without affecting performance.
Package bottom has an exposed metal paddle that must also
be connected to RF/DC ground.
This pin is AC coupled
and matched to 50 Ohms.
Gate control for amplifier. Adjust to achieve Id of 200 mA.
Please follow “MMIC Amplifier Biasing Procedure”
9
Vgg
Application Note. External bypass capacitors of 100 pF,
1000 pF and 2.2 µF are required.
16
RFOUT
This pad is AC coupled
and matched to 50 Ohms.
23, 21, 19
Vdd1, Vdd2, Vdd3
Power Supply Voltage for the amplifier. External bypass
capacitors of 100 pF, 1000pF, and 2.2 µF are required.
Interface Schematic
Application Circuit
Component
C1
C2
C3
Value
100 pF
1,000 pF
2.2 µF
5
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