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Beginners / Re: Fast PWM IC
« Last post by Zero999 on Today at 09:07:09 pm »I still don't understand why you need 100MHz PWM.
The problem is, it needs to be able to generate much higher frequency harmonics. 10% duty cycle has a 1ns on time, so you need much sharper rise and fall times, say 100ps, so you need a slew-rate of 33GV/s for a 3.3V signal.
The problem is, it needs to be able to generate much higher frequency harmonics. 10% duty cycle has a 1ns on time, so you need much sharper rise and fall times, say 100ps, so you need a slew-rate of 33GV/s for a 3.3V signal.