Hi guys
i am stuck on this assignment.
the question is the following:

Design an RC phase oscillator and use operational amplifiers to condition the output
signal of the oscillator to produce concurrent sine and cosine waveforms.
The output voltage is also to be made variable from ±1V to ±5V. You will each be given a
fixed oscillator frequency
a frequency of 200Hz has been given but i dont know where to go from here.
please someone help because i am stuck nd dont know where to go from here.
ive designed oscilliator using formula 1 over 2x pi x R x C x square root of 6
i have uploaded my design please get back ASAP

 

Hi guys
i am stuck on this assignment.
the question is the following:

Design an RC phase oscillator and use operational amplifiers to condition the output
signal of the oscillator to produce concurrent sine and cosine waveforms.
The output voltage is also to be made variable from ±1V to ±5V. You will each be given a
fixed oscillator frequency
a frequency of 200Hz has been given but i dont know where to go from here.
please someone help because i am stuck nd dont know where to go from here.
ive designed oscilliator using formula 1 over 2x pi x R x C x square root of 6
i have uploaded my design please get back ASAP

http://en.wikipedia.org/wiki/Phase-shift_oscillator

 

Your output amplifier uses an inverting configuration with quite a low input resistance. This may complicate the design of your feedback network due to loading effects.

Perhaps you should consider increasing the resistor, or changing to a non-inverting configuration.