Setup
10
SNLU213A – October 2016 – Revised September 2019
Copyright © 2016–2019, Texas Instruments Incorporated
DS280MB810EVM User’s Guide
10. In order to program high level settings, navigate to the “Block Diagram” tab on the “High Level Page”
as shown below in
. The EQ Settings and Output Configurations are programmable from this
page. In order to navigate to specific channels use the “Channel Select” drop down menu. Click
“Refresh from Device” to apply the device’s current settings to the control setting boxes. Click “Apply to
Channel” to program the device from the “Block Diagram” page. After programming the device, the
changed settings can be verified on the “Device Status” page,
. The CAL_CLK Detected
indicator provides a visual representation of whether a calibration clock is active.
•
EQ Settings:
–
The Equalizer works as a high pass filter compensating for input channel loss.
–
The EQ Boost 1, EQ Boost 2, and EQ Boost BW values respectively apply boost to their
respective segments as shown below on the block diagram.
–
The EQ DC Gain setting can be either Low or High Gain.
•
Driver Output:
–
A linear equalizer does not utilize a limiting amplifier. Linear equalizers are necessary for an
application with link training or end to end equalization.
–
Driver VOD and EQ DC Gain settings can be changed on this page. The Approximate DC gain
in dB ranges from -4.5 to +5.0 dB.
Figure 8. SigCon Architect High Level Page: Block Diagram.