12 - 47

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

12

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 connected

directly to the ground plane similar to that shown. A

sufficient number of via holes should be used to con-

nect the top and bottom ground planes. The evalua-

tion circuit board shown is available from Hittite upon

request.

Item

Description

J1, J2

PCB Mount SMA Connector

J3

18 Pin DC Connector

J6, J7

DC Pin

C1, C3

100 pF Capacitor, 0402 Pkg.

C2

4.7 μF Capacitor, 0805 Pkg.

C4

0.1 μF Capacitor, 0402 Pkg.

C6, C14

C5 - C7, C9 - C12

1000 pF Capacitor, 0402 Pkg.

C8

10 kpF Capacitor, 0805 Pkg.

R1 - R12

100 kOhm Resistor, 0402 Pkg.

R15 - R19

39 kOhm Resistor, 0402 Pkg.

R23

1.4 kOhm Resistor, 0603 Pkg.

L1, L2

270 nH Inductor, 0603 Pkg.

L3

HMC628LP4 / 628LP4E

v07.0410

BiCMOS MMIC 5-Bit DIGITAL

VARIABLE GAIN AMPLIFIER, 50 - 800 MHz

Item

Description

SW1, SW2

SPDT 4 Position Dip Switch

U1

HMC628LP4(E) Variable Gain Amplifier

118413 Evaluation PCB

[1] When requesting an evaluation board, please reference the

appropriate PCB number listed in the table “Components for

Selected Frequencies.”

[2] Circuit Board Material: Arlon 25FR / FR4

Information furnished by Analog Devices is believed to be accurate and reliable. However, no

responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other

rights of third parties that may result from its use. Specifications subject to change without notice. No

license is granted by implication or otherwise under any patent or patent rights of Analog Devices.

Trademarks and registered trademarks are the property of their respective owners.

For price, delivery, and to place orders: Analog Devices, Inc.,

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106

Phone: 781-329-4700 • Order online at www.analog.com

Application Support: Phone: 1-800-ANALOG-D