Generate 70MHz signal with 5 voltage levels

Thread Starter

jeskiddin

Joined Jul 5, 2017
1
I'm working on my own communication protocol for a research project. As a start I want to emulate the Gigabit Ethernet protocol which has 2 properties:
-- Uses 5 voltage levels to encode information
-- Operates on a wavelength of ~62.5MHz or more

I have a few questions:
1) What are good FPGAs or programmable devices that operates and can generate and modulate 70MHz signals?
2) Since GPIO pins only produce two voltage levels (0V and high), would a voltage translator be a good option to produce 5 different voltage levels? If not what are some techniques I can use to achieve this?
 
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