G
greysky
You guys had a lot of great ideas to my original post, but I realized I
probably didn't give enough information concerning the application. In a
block diagram, the phase shifter has 2 inputs, one is for the 1MHz sine wave
and the other is for a control voltage, probably a ramp generated by a 16
bit DAC. The output is the phase shifted sine wave. The ramp causes the sine
wave to be continuously shifted up to +- 90 degrees. There will also be a
feedback circuit which will stop the ramp at the appropriate voltage level.
The sine is being generated by a very low noise ocxo, -110Dbc @ 1 hz from
center, and the phase shifter needs to not mess this up. Thanks in advance
for any ideas you may have.
probably didn't give enough information concerning the application. In a
block diagram, the phase shifter has 2 inputs, one is for the 1MHz sine wave
and the other is for a control voltage, probably a ramp generated by a 16
bit DAC. The output is the phase shifted sine wave. The ramp causes the sine
wave to be continuously shifted up to +- 90 degrees. There will also be a
feedback circuit which will stop the ramp at the appropriate voltage level.
The sine is being generated by a very low noise ocxo, -110Dbc @ 1 hz from
center, and the phase shifter needs to not mess this up. Thanks in advance
for any ideas you may have.