HMC424ALP3E Datasheet, PDF (6/6 Pages) Analog Devices – 0.5dB LSB GaAs MMIC 6-BIT DIGITAL

Evaluation PCB
HMC424ALP3E
v00.1113
0.5dB LSB GaAs MMIC 6-BIT DIGITAL
ATTENUATOR, DC - 13 GHz
* R1 - R6 = 100 Ohm.
These resistors are optional
and may be used to enhance
decoupling of the RF path
from the control inputs.
List of Materials for Evaluation PCB EV1HMC424ALP3 ^[1]
Item
Description
J1 - J2
PCB Mount SMA Connector
J3
8 Pin DC Connector
C1
0.01 µF Capacitor, 0603 Pkg.
R1 - R6
100 Ohm Resistor, 0603 Pkg.
U1
HMC424ALP3E Digital Attenuator
PCB ^[2]
105245 Evaluation PCB
[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 exposed paddle should be connected
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 eval-
uation circuit board shown is available from Hittite
upon request.
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