HMC494LP3 Datasheet, PDF (5/6 Pages) Hittite Microwave Corporation – SMT GaAs HBT MMIC DIVIDE-BY-8, DC - 18 GHz

Evaluation PCB
4
v05.1211
HMC494LP3 / 494LP3E
SMT GaAs HBT MMIC
DIVIDE-BY-8, DC - 18 GHz
List of Materials for Evaluation PCB 107384 ^[1]
Item
Description
J1 - J3
PCB Mount SMA RF Connector
J4, J5
DC Pin
C2 - C5
100 pF Capacitor, 0402 Pkg.
C6
1000 pF Capacitor, 0603 Pkg.
C1
2.2 uF Tantalum Capacitor
U1
PCB ^[2]
HMC494LP3 / HMC494LP3E Divide-by-2
107197 Eval Board
[1] Reference this number when ordering complete evaluation PCB
[2] Circuit Board Material: Rogers 4350
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 backside ground slug 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. This evaluation board is
designed for single ended input testing. J2 and J3
provide differential output signals.
4-5
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