MICROWAVE CORPORATION
v02.1100
HMC273MS10G
1 dB LSB GaAs MMIC 5-BIT DIGITAL
ATTENUATOR, 0.7 - 3.7 GHz
Evaluation Circuit Board
9
ATTENUATORS - SMT
* R2 - 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 ground paddle should be connected directly to the ground
plane similar to that shown below. A sufficient number of VIA holes should be used to connect the top and bottom
ground planes. The evaluation circuit board as shown is available from Hittite Microwave Corporation upon request.
List of Material
Item
J1 - J2
J3 - J6
R1
R2, R3, R4
C1, C2
U1
PCB*
Description
PC Mount SMA Connector
DC Pin
5k Ohm Resistor, 0402 Chip
100 Ohm Resistor, 0402 Chip
0402 Chip Capacitor, Select for Lowest Frequency of
Operation
HMC273MS10G Digital Attenuator
103391 Evaluation PCB 1.5” x 1.5”
*Circuit Board Material: Rogers 4350
9 - 18
For price, delivery, and to place orders, please contact Hittite Microwave Corporation:
12 Elizabeth Drive, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373
Order Online at www.hittite.com
HITTITE [ HITTITE MICROWAVE CORPORATION ]
