For price, delivery and to place orders: Hittite Microwave Corporation, 2 Elizabeth Drive, 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

20

HMC702LP6CE

v10.0812

14 GHz 16-BIT FRACTIONAL-N PLL

Figure 15. Charge Pump Gain, Trim and Phase Offset Control

Frequency Programming

the HMc702LP6cE can operate in either fractional mode or integer mode. in integer mode of operation the delta

sigma modulator is disabled. Frequency programming and mode control is described below.

Fractional Frequency

the fractional frequency synthesizer, when operating in fractional mode, can lock to frequencies which are fractional

multiples of the reference frequency.

Fractional Frequency

of VCO

(EQ 13)

where

is the integer division ratio, an integer number between 36 and 65,533

R

as an Example:

= 50 MHz

R

= 1

= 50 MHz

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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