HMC498LC4 Datasheet, PDF (5/6 Pages) Hittite Microwave Corporation – GaAs PHEMT MEDIUM POWER AMPLIFIER, 17 - 24 GHz

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v00.0904
HMC498LC4
GaAs PHEMT MEDIUM
POWER AMPLIFIER, 17 - 24 GHz
Pin Descriptions
Pin Number
1, 5-8, 10-14,
18, 20, 22, 24
Function
N/C
2, 4, 15, 17
GND
3
RFIN
9
Vgg
16
RFOUT
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 from
17 - 24 GHz.
Gate control for amplifier. Adjust to achieve Id of 250 mA.
Please follow “MMIC Amplifier Biasing Procedure”
Application Note. External bypass capacitors of 100 pF,
1000 pF and 2.2 μF are required.
This pad is AC coupled and matched to 50 Ohms from
17 - 24 GHz.
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
5 - 516
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20 Alpha Road, Chelmsford, MA 01824 Phone: [phone] Fax: [phone]
Order On-line at www.hittite.com