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Altera_Forum's avatar
Altera_Forum
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15 years ago

Urgent! hardware interface between FPGA DE2 board(3.3V) and ADC(5V)

HI, may i ask your guys a favor. I am using DE2 board for my project and i need to interchange signals(SPI) to an ADC. The ADC is 5V for logic high but the max output signal for DE2 board is only ...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
15 years ago

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I doubt if it is the internal structure of ADC that makes the waveform distorted when 2 signals are transferred.

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Sounds really unlikely. The clock waveform looks very much like something's connected incorrectly in your circuit.