Developing a sine-to-pulse generator with fast and precise rise time

[Sariel]

Greetings,

I'm exploring the possibility of introducing rectangular pulses with a rise time of 1ns (350MHz) into my existing circuits.
Unfortunately, acquiring a sufficiently fast-function generator within my budget is challenging, as they tend to be priced at $2,000 and above.
However, I do have access to an RF signal generator.

My idea is to create a simple Sine to pulse generator. The plan involves injecting a 350MHz sine wave into a circuit, potentially composed of high slew rate opamps. This circuit should be capable of delivering repetitive pulses at the output, with a 50% duty cycle (although the ability to tune the duty cycle would be advantageous), and 1ns rise/fall times into a 50-ohm load.

Do you have any recommended circuits for this purpose?
My plan is to simulate the circuit in LTspice before moving on to the circuit board design phase.

Thank you.

[ch_scr]

I'd try and use a (P)ECL line reciever (e.g. MC100EL16). Reasonable price, easy to implement (if you follow high speed / transmission line layout considerations) and solid performance. If you need even more edge speed, change to MC100EP16. If you need more output swing, maybe put a balun on the output, too? In that case you could use the (noise-wise) preferred -5V circuit and get the ground reference level translations for the in/output via the baluns "for free".

[tggzzz]

You don't mention important details, e.g. amplitude nor whether it has to be 1ns or could be faster.

However, have a look at: https://www.eevblog.com/forum/testgear/show-us-your-square-wave/msg1902941/#msg1902941