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Altera_Forum
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15 years ago

Interfacing Terasic THDB_ADA Daughter Card with Cyclone III Starter Kit

I have a terasic thdb_ada Daughter Card alongwith my cyclone iii fpga starter kit. But due to the very poorly made User manual for the THDB_ADA Board, I need to know the answers to the following que...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
15 years ago

Hello

Q1)User manual is not so bed in my opinion. In CD you will have datasheets of AD converters with maximum allowable input voltages. But as I remember maximum input voltage for AD is plus and minus 1 V refered to ground.

Q2)You should have a schematic on mentioned CD. AD converters have differential inputs but special transformer is used to convert single-ended signal to differential input of AD. Inputs have common ground plane - I mean SMA connectors.

Best regards