How to convert an analog DC voltage to ppm signal?

[tvdb]

I have a BLDC motor (GWS 3014/10 T) and a simple ESC ( BS25A ). Normally this stuff is used in RC cars/planes/helis, but I am trying control it with Labview. I have about everything, but I need to transfer an analog signal (for example a DBL type number between 0-100) to PPM (Pulse Position Modulation).. Anyone has an idea how to begin with it? Or maybe there is an external device that can transfer a 0-5VDC signal (output from NI USB-6008) to PPM?

[tvdb]

Maybe I had to search a bit better; I just found a .vi that generates a PPM. But the input of the PPM controller has 3 wires, how do I have to connect it to my USB-6008? Do I have to use 2 analog outputs + gnd or digital ouputs?

I'm really not a specialist in electronics..