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For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824
Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com
Application Support: Phone: 978-250-3343 or apps@hittite.com
8
8 - 6
HMC973LP3E
v00.0910
GaAs MMIC VOLTAGE-VARIABLE
ATTENUATOR, 0.5 - 6.0 GHz
Evaluation PCB
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 circuit board shown is available from
Hittite upon request.
List of Materials for Evaluation PCB 131552
 [1]
Item
Description
J1, J2
PCB Mount sMA rF Connector
J3 - J5
DC Pin
C1, C2
100 pF Capacitor, 0402 Pkg.
C3, C4
10000 pF Capacitor, 0402 Pkg.
u1
HMC973LP3e Voltage Variable Attenuator
PCB
[2]
131550 evaluation PCB
[1] reference this number when ordering complete evaluation PCB
[2] Circuit Board Material: Arlon 25Fr or rogers 4350
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