GPS RF front end IC with programmable frequency synthesizer for use in wireless phones

A method for integration of a GPS RF Front End with a wireless mobile, comprising the steps of:

• producing a Local Oscillator (LO) signal with a Voltage Controlled Oscillator (VCO);
• dividing the LO signal by a predetermined value of a first counter means that is coupled to the VCO to obtain a second signal with a frequency of LO divided by the predetermined value and results in a second signal;
• dividing the LO signal by a second predetermine value generated by a second fixed counter means that result in a third signal, where the second fixed counter means has a first divide-by-N counter having multiple outputs;
• dividing one of the first divide-by-N outputs by a second divide-by-N counter;
• and
• comparing a phase and a frequency of the outputs of a first programmable count-down counter that is coupled to the second divide-by-N counter and the second programmable count-down counter, with a Phase Frequency Signal Detector where a reference frequency is also coupled to the second programmable count-down counter.

A method for integration of a GPS RF Front End with a wireless device, comprising the steps of:

• producing a oscillator signal in the wireless device;
• dividing the oscillator signal by at more than one counter that results in more than one output;
• and
• comparing the phase and frequency of the outputs with a phase frequency signal detector and results in an output oscillator signal required by the wireless device.