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Altera_Forum's avatar
Altera_Forum
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14 years ago

LVDS receiver resistors

I'm currently developing on a DE2-115 together with an HSMC daughter card (TI's ADS58B18EVM through HSMC-ADC-bridge adapter). I need to use LVDS I/O standard for interfacing the cards, so I know I ha...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
14 years ago

The LVDS termination resistors are located on the top-side of the DE115 PCB between the FPGA and the GPIO/HSMC connectors. They are 0402 packages.

On the board I have, the resistor pads have solder blobs on them. Before you try to solder resistors, remove the blob from one side of the resistor using solder wick. Leave the other blob there, you can use that when tacking the resistors to the board. You can hand-solder the resistors easy enough. Either use head-mounted magnifying glasses or a microscope.

Make sure you have spare resistors, they're pretty hard to find when you drop them :)

Cheers,

Dave