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Altera_Forum
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10 years ago

Differential input pair LVDS for the ADC5272 in Cyclon 3

good evening ! background: i am now trying to design a new develop FPGA( CYCLONE 3 EP3C40Q240C8) board. it has 2 ADC chips(ADS 5272 http://www.ti.com/lit/ds/symlink/ads5272.pdf ) which o...
Altera_Forum's avatar
Altera_Forum
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10 years ago

Hi,

Those seems more like dedicated clock pins. There should be some differential pins named DIFFIO_T/RXX. However I am not sure about that symbol in the schematics.

If you cannot find in the symbol, you can try to cross check with the pin out file of the device to find the specific pins that are differential pins.