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

6

6 - 1

General Description

Features

Functional Diagram

Typical Applications

7 GHz INTEGER N SYNTHESIZER

(N = 12 - 259)

v03.0709

The hMC698LP5(E) is a frequency synthesizer with

a wideband reversible polarity digital PFD and lock

detect output. The divider operates unconditionally

from 80 - 7000 Mhz with a continuous integer

division ratio of 12 to 259. The hMC698LP5(E) high

frequency operation along with ultra low phase noise

floor make possible synthesizers with wide loop

bandwidth and low N resulting in fast settling and

very low phase noise. When used in conjunction with

a differential loop filter, the hMC698LP5(E) can be

used to phase lock a VCO to a reference oscillator.

Ultra Low ssB Phase Noise Floor:

-153 dBc/hz @ 10 khz offset @ 100 Mhz

Reference Frequency.

Programmable Divider (N= 12 - 259) Operating

up to 7 Ghz

Open Collector Output Buffer Amplifiers for

Interfacing w/ Op-Amp Based Loop Filter

Reversible Polarity PFD w/ Lock Detect Output

The hMC698LP5(E) is ideal for:

• satellite Communication systems

• Point-to-Point Radios

• Military Applications

• sonet Clock Generation

Parameter

Conditions

Min.

Typ.

Max.

Units

Maximum Ref. Input Frequency

1300

Mhz

Minimum Ref. Input Frequency

10

Mhz

Reference Input Power Range

100 Mhz Frequency

-5

+5

dBm

Maximum VCO Input Frequency

7000

Mhz

Minimum VCO Input Frequency

80

Mhz

VCO Input Power Range

100 Mhz Input Frequency

-10

+5

dBm

PFD Output Voltage

2000

mV, Pk - Pk

PFD Gain

Gain = Vpp / 2π Rad.

0.32

V/Rad.

ssB Phase Noise

@ 10 khz Offset @ 100 Mhz square Wave Ref. Input

Pin= 0 dBm

-153

dBc/hz

Total supply Current

310

mA

[1] Maximum frequencies may be limited by available counter division ratio.

[2] square wave input achieves best phase noise at lower ref. frequency (see sine & square wave comparison plots)

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