sfp-experimenter¶

This is the twin brother of the sfp-breakout board. It contains LVDS receiver/transmitter circuits, so you can use single-ended signals on the electrical side.

h2. Schematics / Design files

The schematics / design files are kept in git at https://git.osmocom.org/osmo-small-hardware/tree/sfp-breakout

Photos¶

Availability¶

Errata¶

sfp-experimenter v1¶

R6 pull-down re-work¶

there was a need to place a bias resistor from RD_N to ground (pin4 on ic2) or the whole board would not work. ic2 has internal 100ohm prom pin3 to pin4 and pullups of ~300k to vcc. 100k pulldown on one leg pushes it into the proper operating range. due to the 100ohm its not neccessary to have more than one pulldown.