For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824

Phone: 978-250-3343

Fax: 978-250-3373

Order On-line at www.hittite.com

Application Support: Phone: 978-250-3343 or apps@hittite.com

9

9 - 8

Evaluation PCB

The circuit board used in the 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 board should be mounted to an

appropriate heat sink. The evaluation circuit board

shown is available from Hittite upon request.

item

Description

J1 - J2

pCB mount smA rf Connector

J3, J4

2 mm DC Header

C1 - C5

100 pf Capacitor, 0402 pkg.

C6 - C7

1000 pf Capacitor, 0603 pkg.

C8

10 pf Capacitor, 0402 pkg.

C9

0.5 pf Capacitor, 0603 pkg.

C10

1.6 pf Capacitor, 0603 pkg.

C11

4.7 µf, Tantalum

l1, l2

3.9 nH inductor, 0603 pkg.

l3

2.2 nH inductor, 0402 pkg. Toko

r1

56 ohm resistor, 0603 pkg.

U1

HmC409lp4 / HmC409lp4e Amplifier

108353 eval Board

[1] reference this number when ordering complete evaluation pCB

[2] Circuit Board material: rogers 4350, er = 3.48

GaAs InGaP HBT 1 WATT

POWER AMPLIFIER, 3.3 - 3.8 GHz

v03.0710