how to desgin a phase shifter in base band?

[kokikak2]

I want to design a phase shifter operating in the range of frequency between 10 KHZ -to- 1 MHz.
pleaze i need your replies as fast as possible.

thanks in advance.
yasser samir

 

[Wenye]

kokikak2,

You may need to design a all pass filter for this application. Delay time will be a constant but shifted phase will be depand on frequency.

No matter you design a circuit to shift phase of tone. But it's nearly improsible to shift a board band analog signal in a same vaule of phase.

If the boardband signal be modulated by another signal then it's a different story...


Regards,
Wenye

 

[analog_design]

Dear kokikak2
What is the phase shifter ?
Can you explain that?