Pulse Generator

Hi All,

I would like to make a Variable Pulse generator with Following Features

: programmable width and frequency (i.e.,

programmable frequency and duty cycle). Pulse width should

range from 1ns to 10 ns. Programming will be from a

microcontroller (MSP or a 32 bit) with digital IOs. Pulse

train frequency 1-20 MHz preferred (3-10 MHz minimum).

Can Any one Advice Me!!!

Thanks.

Aneesha,