HMC635LC4_10 Datasheet, PDF (6/6 Pages) Hittite Microwave Corporation – GaAs PHEMT MMIC DRIVER AMPLIFIER, 18 - 40 GHz

v00.1008
Evaluation PCB
HMC635LC4
GaAs PHEMT MMIC DRIVER
AMPLIFIER, 18 - 40 GHz
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List of Materials for Evaluation 122763 ^[1]
Item
Description
J1 - J2
2.92 mm PC Mount K-Connector
VD1 - VD4,
VGG1, VGG2
DC Pin
C1 - C6
100 pF Capacitor, 0402 Pkg.
C7 - C12
1000 pF Capacitor, 0603 Pkg.
C13 - C18
4.7 µF Capacitor, Tantalum, Case A
U1
PCB ^[2]
HMC635LC4 Driver Amplifier
122761 Evaluation PCB ^[3]
[1] Reference this number when ordering complete evaluation PCB
[2] Circuit Board Material: Rogers 4350 or Arlon 25FR
[3] Due to the very high frequency operation of this product
a custom LC4 PCB footprint and solder stencil are required
for this design. Performance shown in this data sheet
was produced using this custom footprint. DO NOT USE
Hittite’s standard LC4 footprint. Please contact Applications
for details.
The circuit board used in the application should
use RF circuit design techniques. Signal lines
should have 50 Ohm impedance while the package
ground leads and exposed paddle should be con-
nected directly to the ground plane similar to that
shown. A sufficient number of via holes should be
used to connect the top and bottom ground planes.
The evaluation board should be mounted to an
appropriate heat sink. The evaluation circuit board
shown is available from Hittite upon request.
For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824
Phone: [phone] Fax: [phone] Order On-line at www.hittite.com
Application Support: Phone: [phone] or [e-mail]
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