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

23

HMC701LP6CE

v09.1112

8 GHz 16-BIT FRACTIONAL-N PLL

2-Way Sweeps

b. by rising edge ttL signal input on GPo3, if ramp_trig_ext_en is set, and GPo3 is enabled.

all functions are the same in Figure 15 for autosweep or 2-Way triggered sweeps, the only difference is the trigger

source is generated internally for autosweep, and is input via serial port or GPo3 for triggered sweeps. Sweep_busy

will go high at the start of every ramp and stay high until the nth step in the ramp.

Figure 15. 2-Way Sweep Control via Trigger

Triggered 1-Way Sweeps

1-Way sweeps are shown inFigure 16.

Unlike 2-Way sweeps, 1-Way sweeps require that the Vco hop back to the start frequency after the dwell period.

to allow the Vco to settle after the large frequency hop back to the start frequency. Subsequent odd numbered

triggers will start the 1-Way sweep and repeat the process.

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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.

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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