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Altera_Forum's avatar
Altera_Forum
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15 years ago

Need help in schematic design (IMPORTANT)

Hi, I am designing cyclone3 FPGA board.In which it has ADV7123 intefacing. i am planning to MUX some of the basic peripherals such us led, seven segment display with data pin of ADV7123. exa...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
15 years ago

Leds and 7seg displays are controlled through std LVTTL signals which is what ADV7123 needs, so the answers is, generally talking, yes.

On the practical side, if you keep on driving leds and display with those signals, you must account for current drawn by them and for extra capacitive loading. This could affect the performance if you are planning to drive the signals at high frequencies.

Regards

Cris