Patent ID: 9407199
Filing Date: 2016-08-02
CPC Classification: H03B,H03J,H03L

Claim Text:
1. An integrated circuit for a wireless device, the integrated circuit comprising a frequency dependent circuit comprising: an input node; an output node; a main bank of selectable first capacitive elements that affect a frequency characteristic of the frequency dependent circuit; a first shunt bank of selectable second capacitive elements located between ground and the input node; a second shunt bank of selectable second capacitive elements located between ground and the output node; a phase locked loop comprising a phase frequency detector and a voltage controlled oscillator, an output of phase frequency detector coupled to an input of the voltage controlled oscillator, wherein the input node defines an input of the voltage controlled oscillator and the output node defines an output of the voltage controlled oscillator, and wherein the phase frequency detector is coupled to receive a reference frequency and is coupled to a divided frequency output of the voltage controlled oscillator with a switch; and a controller configured to: