Enable Lvds Controller - Analog Devices AD9739A-EBZ Quick Start Manual

Quick Start Guide
Next, in the lower portion of the screen, select "1: Single Tone" as the Data Vector. The other options can be left at their default.
After the DPG2 is correctly setup, click the Download button (
into the AD9737A/AD9739A.

Enable LVDS Controller

Once the pattern is loaded into the DPG2 and running, the final step is to enable the LVDS Controller. In the AD9737A or AD9739A SPI
application, enable the RCV_LOOP and RCV_ENA buttons. Click the Run button (
RCVR TRX ON indicators should be green, as shown in Figure 9.
Another way to verify that the controller is in the correct spot (and not on the edge) is to check the status of the
four status bits which sample the rising edge of the DCI at four different phases. DCI PHS1 should always be
high, and DCI PHS3 should always be low. The other bits will toggle as the LVDS controller searches for the
correct timing. The ideal case is shown in Figure 10. Increasing the value of the FINE_DEL_SKEW allows for a
wider search around the DCI edge, and should reduce the toggling on PHS0 and PHS2. This is usually required
when the DCI signal has a lot of jitter.
Figure 5
) in the lower right, then the Play button (
). Once the run is complete, the RCVR LCK and
Figure 6
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AD9739A-EBZ
) to begin vector playback
Figure 7