HMC425LP3 Datasheet, PDF (6/6 Pages) Hittite Microwave Corporation – 0.5 dB LSB GaAs MMIC 6-BIT DIGITAL POSITIVE CONTROL ATTENUATOR, 2.4 - 8.0 GHz

v00.0202
HMC425LP3
MICROWAVE CORPORATION
0.5 dB LSB GaAs MMIC 6-BIT DIGITAL
POSITIVE CONTROL ATTENUATOR, 2.4 - 8.0 GHz
Evaluation PCB
9
* R1 - R6 = 100 Ohm.
These resistors are optional
and may be used to enhance
decoupling of the RF path
from the control inputs.
The circuit board used in the final 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 evaluation circuit board shown is available from Hittite upon request.
List of Material
Item
Description
J1 - J2
PC Mount SMA Connector
J3
8 Pin DC Connector
C1
0.01 µF Capacitor, 0603 Pkg.
C2, C3
100 pF Capacitor, 0402 Pkg.
R1 - R6
100 Ohm Resistor, 0603 Pkg.
U1
HMC425LP3 Digital Attenuator
PCB*
105260 Evaluation PCB
* Circuit Board Material: Rogers 4350
For price, delivery, and to place orders, please contact Hittite Microwave Corporation:
12 Elizabeth Drive, Chelmsford, MA 01824 Phone: [phone] Fax: [phone]
Order Online at www.hittite.com
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