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 - 30

MMIC VCO w/ BUFFER

AMPLIFIER, 3.9 - 4.45 GHz

v03.0209

General Description

Features

Functional Diagram

The HMC391LP4 & HMC391LP4E are GaAs InGaP

Heterojunction Bipolar Transistor (HBT) MMIC VCOs

with

integrated

resonators,

negative

resistance

devices,

varactor

diodes,

and

buffer

amplifiers.

Covering 3.9 to 4.45 GHz, the VCO’s phase noise

performance is excellent over temperature, shock,

vibration and process due to the oscillator’s monolithic

structure.

Power output is 5.0 dBm typical from a

single supply of +3V @ 30 mA. The voltage controlled

oscillator is packaged in a low cost leadless QFN 4 x 4

mm surface mount package.

Pout: +5.0 dBm

Phase Noise: -106 dBc/Hz @100 KHz

No External Resonator Needed

Single Supply: +3V @ 30 mA

Typical Applications

Low noise MMIC VCO w/Buffer Amplifier for:

• VSAT & Microwave Radio

• Radio Altimetry

• Test Equipment & Industrial Controls

• Military

Parameter

Min.

Typ.

Max.

Units

Frequency Range

3.9 - 4.45

GHz

Power Output

1.5

5.0

dBm

SSB Phase Noise @ 100 kHz Offset, Vtune= +5V @ RF Output

-106

dBc/Hz

Tune Voltage (Vtune)

0

10

V

Supply Current (Icc) (Vcc = +3V)

30

40

mA

Tune Port Leakage Current

10

μA

Output Return Loss

7dB

Harmonics

2nd

3rd

-9

-23

dBc

dBc

Pulling (into a 2.0:1 VSWR)

8.0

MHz pp

Pushing @ Vtune= +5V

16

MHz/V

Frequency Drift Rate

0.5

MHz/°C

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