Fast bandwidth spectrum analysis

A method, comprising:

• generating control command signals, receiving a digital data input signal, and analyzing the digital data input signal, by a processor;
• receiving the control command signals and generating a charge pump output signal based on the control command signals, by a Phase-Locked Loop Waveform Generator (PLLWG) coupled to the processor;
• receiving a tuning signal based on the charge pump output signal and outputting a voltage controlled oscillator (VCO) output signal based on the tuning signal, by a VCO coupled to the PLLWG;
• receiving an incoming modulated signal and the VCO output signal, and outputting an in-phase analog data signal and a quadrature analog data signal based on the incoming modulated signal and the VCO output signal, by a demodulator;
• receiving the in-phase analog data signal and the quadrature analog data signal and summing the in-phase analog data signal and the quadrature analog data signal into the analog output signal, by an image reject circuit;
• and
• converting the analog output signal into the digital data input signal, by an Analog-to-Digital Converter (ADC),
• wherein the VCO is a first VCO, the VCO output signal is a first VCO output signal, and the demodulator is an IQ demodulator, the method further comprising:
• receiving the tuning signal based on the charge pump output signal and outputting a second VCO output signal based on the tuning signal, by a second VCO coupled to the PLLWG;
• receiving the charge pump output signal and selectively outputting a first raw tuning signal and a second raw tuning signal directed to the first VCO and the second VCO, respectively, by a tuning signal switch;
• receiving a selected frequency signal based on one of the first and second VCO output signals, and outputting the in-phase analog data signal and the quadrature analog data signal based on the incoming modulated signal and one of the first and second VCO output signals, by the IQ demodulator;
• and
• converting the in-phase analog signal and the quadrature analog signal into a digital data input signal, and outputting the digital data input signal to the processor, by the ADC.