Patent ID: 8014477

Claim:
A receiver comprising: a tuner circuit providing an analog signal received on a selected channel; a converter circuit configured to: for a plurality of different sample clock frequencies. determine whether overtones of at least one of the plurality of different sample clock frequencies are outside a predetermined bandwidth that includes a frequency of the selected channel; select one of the plurality of different sample clock frequencies, a master clock signal being an integer multiple of the different sample clock frequencies, the selection being based on whether overtones of at least one of the plurality of different sample clock frequencies are outside the predetermined bandwidth; generate a sample clock signal based on the selected one of the plurality of sample clock frequencies; and convert the analog signal to a digital signal at a conversion rate based on the sample clock signal; a master clock generator that generates the master clock signal and provides the master clock signal to the converter circuit, and where the converter circuit further comprises: a sample clock generator operating to divide the master clock signal by a control integer value to generate the sample clock signal; and an analog-to-digital converter disposed to convert the analog signal to the digital signal at the conversion rate; where the sample clock generator further comprises channel converter logic responsive to the selected channel to select the control integer value by which the master clock signal is divided to generate the sample clock signal; where the tuner circuit comprises: an RF receiving circuit providing an RF output signal on the selected channel; a local oscillator circuit generating a mixing signal at a mixing signal frequency; a mixer circuit disposed to convert the RF output signal to an intermediate frequency signal using the mixing signal; and an intermediate frequency filter circuit providing a filtered intermediate frequency output signal as the analog signal; where the sample clock generator comprises a frequency counter disposed to generate a frequency value from a signal in the tuner circuit, where the frequency value corresponds to a frequency of the selected channel, and where the channel converter logic is responsive to the frequency value in order to select the control integer value; and where the frequency counter generates the frequency value from an input signal to the local oscillator circuit that is used by the local oscillator circuit to generate the mixing signal.