A need a component which gives the inkomming signal a 5ns delay if thats possible. I think I know that an inverter gives a 10ns delay. I just need to know the delay very accurate.
A short length of pcb wiring or just a short wire will give only a 5ns delay.
There are many logic families and each one has a different amount of delay.
And it would need to be terminated on at least one end in its characteristic impedance.
If he wants a digital delay, RC works if you aren't too fussy about accuracy, and the signal pulse width is more than about 15 - 20 ns.
Very old colour TV's used to use a coil of coaxial cable for the luma delay line, later on they used a coil of wire around a former - these days it's done electronically inside a chip.
PAL sets also have a 64uS delay line, these were originally made out of glass, but are now internal to the chips.
So I just can't use a component, but a fixed lenght of the trace (the PCB) between the components could give a 5ns delay? Is it possible to get a very accurate delay maybe 10, 20 or 50ns by a component?
Yes, but only in free space. In a transmission line, it is inversely proportional to the square root of the effective dielectric constant of the tline's dielectric.
FR4 epoxy-glass board has a dielectric constant of ~4.0 - 4.5, so the propagation velocity of stripline (sandwiched between two ground planes) is about half that of free space. Microstrip (surface line over gnd plane) effective dielectric constant is a function of geometry, but will always be less than the substrate's value, due to the fact that one side is exposed to air, which has a dielectric constant of 1. Values around 3.0 - 3.5 are typical.
So I just can't use a component, but a fixed lenght of the trace (the PCB) between the components could give a 5ns delay? Is it possible to get a very accurate delay maybe 10, 20 or 50ns by a component?
You need to quantify HOW accurate. Something along the lines of 5ns +/- 100ps etc.. If you use logic parts that aren't specified for accurate delays, you will find that typically, they will be much faster than thei maximum datasheet value shows - doesnt sound like a good way to make an _accurate_ delay.
I'm building a simple - but accurate, LIDAR. I need a short delay between the FF's, so I with accuracy can determine, where the received signal is received in the signal. But I think I have to allow for trace lenght to get this accuracy. Like the MAX9010 comparator.
I'm building a simple - but accurate, LIDAR. I need a short delay between the FF's, so I with accuracy can determine, where the received signal is received in the signal. But I think I have to allow for trace lenght to get this accuracy. Like the MAX9010 comparator.