HMC290_06 データシートの表示（PDF） - Hittite Microwave

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HMC290_06

2 dB LSB GaAs MMIC 2-BIT DIGITAL ATTENUATOR, 0.7 - 4.0 GHz

Hittite Microwave 

v01.0605

Evaluation Circuit Board

6

HMC290 / 290E

2 dB LSB GaAs MMIC 2-BIT DIGITAL

ATTENUATOR, 0.7 - 4.0 GHz

* R2 = R3 = 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 103372 [1]

Item

J1 - J2

J3 - J6

R1

R2, R3

C1, C2

U1

PCB [2]

Description

PCB Mount SMA Connector

DC Pin

5k Ohm Resistor, 0402 Chip

100 Ohm Resistor, 0402 Chip

0402 Chip Capacitor, Select for Lowest

Frequency of Operation

HMC290 / HMC290E Digital Attenuator

103370 Evaluation PCB 1.5” x 1.5”

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 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 as shown is available from

Hittite Microwave Corporation upon request.

[1] Reference this number when ordering complete evaluation PCB

[2] Circuit Board Material: Rogers 4350

6 - 44

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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