HMC305LP4E 查看數據表（PDF） - Hittite Microwave

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HMC305LP4E

0.5 dB LSB GaAs MMIC 5-BIT SERIAL CONTROL DIGITAL ATTENUATOR, 0.7 - 3.8 GHz

Hittite Microwave 

HMC305LP4 / 305LP4E

v03.0809

0.5 dB LSB GaAs MMIC 5-BIT SERIAL

CONTROL DIGITAL ATTENUATOR, 0.7 - 3.8 GHz

UED Evaluation Circuit Board

DISCPORONTDIUNCT Not Recommended for New Designs

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List of Materials for Evaluation PCB 108782 [1]

Item

J1 - J2

J3

C1, C2

C3

R1

U1

Description

PCB Mount SMA Connector

2 mm Molex Header

100 pF Capacitor, 0402 Pkg.

0.01 μF Capacitor, 0402 Pkg.

5k Ohm Resistor, 0402 Pkg.

HMC305LP4 / HMC305LP4E

Digital Attenuator

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

PCB [2]

108780 Evaluation PCB

as shown is available from Hittite Microwave Corpo-

[1] Reference this number when ordering complete evaluation PCB

ration upon request.

[2] Circuit Board Material: Rogers 4350

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

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