Hi,
I'm trying to create an electronic delay circuit, to be used as a trigger signal.
I have a train of pulses (~1 ns width with 5 μs spacing (~200 kHz)) and want to be able to delay the pulses by a few microseconds (say, 3 μs). As the resulting pulse train is to be used for rising-edge triggering, it doesn't matter if the pulse width broadens to a few microseconds too, providing the 200 kHz frequency is unchanged.
I considered using a 555 timer for this as a monostable:
The 1 ns pulse would trigger the monostable, with time period = 3 μs, say.
An inverter follows the monostable so that after 3 μs, the output voltage rises.
Since the input into the 555 trigger is periodic (200 kHz), the output would be periodic too, with 200 kHz frequency.
From the 555 datasheet, I think the 555 should be able to produce a 200 kHz output, although I wonder if the 1 ns trigger pulse might be too short?
Any suggestions or comments would be greatly appreciated. Thanks!
I'm trying to create an electronic delay circuit, to be used as a trigger signal.
I have a train of pulses (~1 ns width with 5 μs spacing (~200 kHz)) and want to be able to delay the pulses by a few microseconds (say, 3 μs). As the resulting pulse train is to be used for rising-edge triggering, it doesn't matter if the pulse width broadens to a few microseconds too, providing the 200 kHz frequency is unchanged.
I considered using a 555 timer for this as a monostable:
The 1 ns pulse would trigger the monostable, with time period = 3 μs, say.
An inverter follows the monostable so that after 3 μs, the output voltage rises.
Since the input into the 555 trigger is periodic (200 kHz), the output would be periodic too, with 200 kHz frequency.
From the 555 datasheet, I think the 555 should be able to produce a 200 kHz output, although I wonder if the 1 ns trigger pulse might be too short?
Any suggestions or comments would be greatly appreciated. Thanks!