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

4

4

4 - 1

GaAs HBT PROGRAMMABLE

5-BIT COUNTER, DC - 2.2 GHz

v09.0114

General Description

Features

Functional Diagram

The HMC394LP4 & HMC394LP4E are low noise

GaAs HBT programmable 5-bit counters in 4 x

4mm leadless surface mount packages. This device

allows continuous division from N= 2 to 32 at input

frequencies up to 2.2 GHz. The output voltage swing is

800 mV with a duty cycle inversely proportional to N.

The low additive SSB phase noise of -153 dBc/Hz at

100 KHz offset makes this counter an excellent choice

for low noise synthesizer applications.

SSB Phase Noise: -153 dBc/Hz @ 100 kHz

Selectable Division from 2 to 32

Parallel 5-Bit Control

Wide Input Power Range: -20 to +10 dBm

24 Lead 4x4mm QFN Package: 9 mm²

Typical Applications

Programmable divider for offset synthesizer

and variable divide by N applications:

• Satellite Communication Systems

• Point-to-Point and Point-to-Multi-Point Radios

• LMDS

• SONET

Parameter

Conditions

Min.

Typ.

Max.

Units

Maximum Input Frequency

2.2

GHz

Minimum Input Frequency

Sine Wave Input [1]

0.1

GHz

Input Power Range

Fin = 0.1 to 2.2 GHz

-15

>-20

+10

dBm

Output Power

Divide-by-2

4

dBm

SSB Phase Noise

Fin = 1 GHz, N = 4

-153

dBc/Hz

Output Transition Time

100

ps

Supply Current (Icc)

194

mA

1. Divider will operate down to DC for square-wave input signal.

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