I want to control each step of the ramp as described in data sheet for ADF4159 p.31 "External control of ramp steps".
I want a to generate a single sawtooth fsk ramp where I pulse TXdata to make one step on the ramp.
The following setup gives a single sawtooth that start with puls on TXdata.
When I set TX Ramp CLK to "1. TXdata" the ramp should start and take one step for each puls on TXdata that I generate externally. The following settings does not work.
Why is not a ramp generated when setting TX Ramp CLK to TXdata?