Patent ID: 7542749

Claim:
A method of generating clock signals for driving digital data over a a two-way digital data link between a radio frequency (“RF”) receiver and a base band processor at a rate that complies with an emissions mask defining limits of electromagnetic emissions causing interference (“EMI”), said method comprising: generating a fixed clock signal having a fixed frequency, the fixed clock signal being used in a fixed clock domain within the RF receiver; programming one or more clock attributes to generate a variable frequency clock signal having a frequency distribution profile from said fixed frequency for use in a variable clock domain used to communicate with the base band processor over the two-way digital data link; adjusting said one or more clock attributes to synchronize an average frequency of said variable frequency clock signal to that of the fixed frequency; bridging digital data signals between said fixed clock domain and said variable clock domain by retiming digital data transferred between the clock domains; and shaping an EMI emissions profile for said data link in accordance with said frequency distribution profile to comply with said emissions mask.