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Altera_Forum
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17 years ago

bank recommendations for LVDS Signals in Cyclone II?

Hello, i want to use a Cyclone II (EP2C35F484) as a LVDS transmitter and a Cyclone II (EP2C5F256) as a LVDS receiver. In the Cyclone II Device Data Sheet you can see, that every I/O Bank in Cy...
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Altera_Forum
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17 years ago

Cyclone II, unlike Cyclone III or Stratix and Arria has basically identical LVDS specification for row and column IO pins. You can select any bank(s), that can use a 2.5V supply without conflicting with other requirements, e. g. configuration pin connection. Furthermore the pin placement rules for differential pins require a distance to single ended I/Os in the same bank. It's advisable to check the pin assignment by Quartus before finishing the PCB.

With Cyclone II, a three resistor driver termination and a one resistor receiver termination is required. Alternatively, the mini-LVDS one resistor driver termination can be used for reduced speed.