5
5 - 175
For price, delivery, and to place orders, please contact Hittite Microwave Corporation:
20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373
Order On-line at www.hittite.com
Evaluation PCB
The circuit board used in the fi nal 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 111315
[1]
Item
Description
J1 - J2
PCB Mount SMA Connector
J3 - J8
DC Pin
C1 - C3
1000 pF Capacitor, 0402 Pkg.
C4, C5
330 pF Capacitor, 0402 Pkg.
U1
HMC540LP3 / HMC540LP3E
Digital Attenuator
PCB
[2]
111291 Evaluation PCB
[1] Reference this number when ordering complete evaluation PCB
[2] Circuit Board Material: Rogers 4350
HMC540LP3 / 540LP3E
1 dB LSB GaAs MMIC 4-BIT DIGITAL
POSITIVE CONTROL ATTENUATOR, DC - 5.5 GHz
v00.0605
发布紧急采购，3分钟左右您将得到回复。
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