3 ms·
Polyphase DSP is some fun stuff. I helped a coworker implement a polyphase lowpass filter in Verilog a few years ago. Would like to get back to learning about i
by cushychicken 7y ago
Polyphase DSP is some fun stuff. I helped a coworker implement a polyphase lowpass filter in Verilog a few years ago. Would like to get back to learning about it one of these days. (Hopefully an impending layoff doesn't give me the time I need to do that!)
Why'd you choose 50MHz for push/pull capability? What does application does that high of a drive frequency unlock?
- ChuckMcM 7y agoRe: the 50MHz, it lets me drive a number of LED panels directly with fairly long ribbon cable runs. The goal is to run displays at 161 Hz refresh rate (23 * 7 which are both prime factors that aren't in 60 or 50 so the refresh rate won't "beat" with local illumination). This frequency determines how many panels I can run from a single "port" which ultimately determines the maximum resolution I can use for a display.
- cushychicken 7y agoSingle port as in a single GPIO port?
- ChuckMcM 7y agoSingle port as in single 16 pin connector that all of these LED panels use as a defacto standard.