Dear all,
hope you all are fine and enjoy your time. Here i would like to ask for favor, I have designed Voltage Control Oscillator (VCO) by using LM358 Op Amp. at input i used Ramp pulse (5V, 5Hz) and at output i obtained square wave that is okay. but the problem is frequency requirement: for this signal the output frequency is 335.61Hz (5V) while i need 8.7 MHz at output and at input 180Hz .. i am too much confused how can i do it .. if some body can help me in this regard then i shall be highly grateful to him/her. i can share my schematic also or someone recommend one circuit.
Regards
hope you all are fine and enjoy your time. Here i would like to ask for favor, I have designed Voltage Control Oscillator (VCO) by using LM358 Op Amp. at input i used Ramp pulse (5V, 5Hz) and at output i obtained square wave that is okay. but the problem is frequency requirement: for this signal the output frequency is 335.61Hz (5V) while i need 8.7 MHz at output and at input 180Hz .. i am too much confused how can i do it .. if some body can help me in this regard then i shall be highly grateful to him/her. i can share my schematic also or someone recommend one circuit.
Regards