HMC425LP3E【PDF 6/6 页】ATTENUATOR DGTL 6BIT 3X3QFN

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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

5 - 121

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.

* R1 - R6 = 100 Ohm.

These resistors are optional

and may be used to enhance

decoupling of the RF path

from the control inputs.

Item

Description

J1 - J2

PCB Mount SMA Connector

8 Pin DC Connector

0.01 糉 Capacitor, 0603 Pkg.

C2, C3

100 pF Capacitor, 0402 Pkg.

R1 - R6

100 Ohm Resistor, 0603 Pkg.

HMC425LP3 / HMC425LP3E Digital Attenuator

PCB

[2]

105260 Evaluation PCB

[1] Reference this number when ordering complete evaluation PCB

[2] Circuit Board Material: Rogers 4350

List of Materials for Evaluation PCB 105408

[1]

HMC425LP3 / 425LP3E

v03.0409

0.5 dB LSB GaAs MMIC 6-BIT DIGITAL

POSITIVE CONTROL ATTENUATOR, 2.2 - 8.0 GHz

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