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

12

12 - 149

Pin Number

Function

Description

Interface Schematic

1- 14, 17 - 19,

21, 23, 24

N/C

No Connection

15

GND

This pin must be connected to RF & DC ground. Package bottom

has an exposed metal paddle that must be RF & DC grounded.

16

RFOUT

RF output (AC coupled)

20

Vcc

Supply Voltage Vcc= 3V

22

VTUNE

Control Voltage Input. Modulation port bandwidth

dependent on drive source impedance. See “Determining the FM

Bandwidth of a Wideband Varactor Tuned VCO” application note.

Pin Descriptions

MMIC VCO w/ BUFFER

AMPLIFIER, 7.1 - 7.9 GHz

v01.0508

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 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.

Evaluation PCB

Item

Description

J1 - J2

PCB Mount SMA RF Connector

J3 - J4

DC Pin

C1

4.7 μF Tantalum Capacitor

C2

10,000 pF Capacitor, 0603 Pkg.

U1

HMC532LP4 / HMC532LP4E VCO

105667 Eval Board

[1] Reference this number when ordering complete evaluation PCB

[2] Circuit Board Material: Rogers 4350

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