EV-RADAR-MMIC datasheet(10/28 Pages) AD

Teilenummer	EV-RADAR-MMIC

Bauteilbeschribung	Evaluation Board for the ADF5901, ADF5904, and ADF4159 Chipset for a 24 GHz FMCW Radar

PDF	28 Pages

Scroll/Zoom	100%

Hersteller	AD [Analog Devices]

Direct Link	http://www.analog.com

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10 / 28 page

UG-866

EV-RADAR-MMIC2 User Guide

Rev. B | Page 10 of 28

ADF4159 Ramps and Shift Keying

In the Ramps and Shift Keying tab, configure the ramping

functionality of the ADF4159.

Select the ramp type in the Ramp mode drop down menu; the

various ramp parameters can be set in the CLK1 spin box and

in the Up Ramp pane.

Example of Ramp Setup

Figure 6 shows the ramping settings for a continuous triangular

ramp of 1000 up ramp steps over 200 MHz at the ADF5901 Tx

output with a ramp time of 5 ms.

For 200 MHz, the PLL is programmed for a 100 MHz ramp

because the evaluation board uses the ADF5901 auxiliary output

with a 12 GHz output signal. After each parameter is set in the

software, each register must be written to the device.

The other options in this tab allow configuration of the various

ramps and shift keying controls of the ADF4159.

Figure 6. Ramp and Shift Keying Tab

EV-RADAR-MMIC Datenblatt(PDF) 10 Page - Analog Devices