Patent ID: 7109808
Filing Date: 2006-09-19
Classification: G06F

Abstract:
1. A polyphase numerically controlled oscillator (PNCO), comprising: a plurality of sub-numerically controlled oscillators (SNCO's), each SNCO capable of receiving a clock signal at a first clock rate and an assigned phase offset signal for each SNCO, and each SNCO being configured to generate a digital waveform for the assigned phase offset signal; a plurality of frequency multipliers for receiving the generated digital waveforms from each SNCO, each of the frequency multipliers being configured to generate a frequency multiplied representation of the received digital waveforms, each of the plurality of frequency multipliers configured to operate at the first clock rate; and a multiplexer configured to receive output from each of the frequency multipliers according to the first clock rate, the multiplexer further configured to receive a select signal triggering the multiplexer at a second clock rate.