Mixer-based timebase for sampling multiple input signal references asynchronous to each other

A sampling system for performing sampling, the sampling system comprising:

• strobe generation means for generating a strobe signal from a first signal;
• and,
• sampling means for sampling multiple sampled signals using the strobe signal, wherein each of the multiple sampled signals is synchronous with its own clock reference and each of clock references are asynchronous with respect to each other, the sampling means comprising a plurality of converter means for performing analog-to-digital conversion on each sampled value of each of the multiple sampled signals;
• wherein for each of the clock references that is not synchronous with the first signal, the sampling system additionally comprises:
• phase comparator means for performing a phase comparison between the clock reference and the first signal to produce a difference value that indicates a phase difference between the clock reference and the first signal, and
• conversion means for performing analog-to-digital conversion of the difference value.

A sampling system for performing sampling, the sampling system comprising:

• trigger system that generates a strobe signal from a first signal;
• a plurality of samplers, each sampler using the strobe signal to sample one of a plurality of sampled signals, wherein each sampled signal from the plurality of sampled signals is synchronous with one clock reference from a plurality of clock references and each of the clock references in the plurality of clock references are asynchronous with respect to each other;
• and,
• a plurality of analog-to-digital (A/D) converters, each A/D converter in the plurality of A/D converters performing analog-to-digital conversion for one of the sampled signals in the plurality of sampled signals;
• wherein for each clock reference that is not synchronous with the first signal, the sampling system additionally comprises:
• a phase comparator that produces a difference value that indicates a phase difference between the clock reference and the first signal, and
• a converter that performs analog-to-digital conversion of the difference value at a frequency determined by the strobe signal.

A sampling system that performs sampling, the sampling system comprising:

• a first sampler that takes samples of a first sampled signal;
• a first analog-to-digital (A/D) converter that receives the samples from the first sampler;
• a first clock reference synchronous with the first sampled signal;
• a second sampler that takes samples of a second sampled signal;
• a second analog-to-digital (A/D) converter that receives the samples from the second sampler;
• a second clock reference synchronous with the second sampled signal;
• a first phase comparator that produces a first difference value that indicates a phase difference between the first clock reference and the second clock reference;
• a third A/D converter that receives the first difference value;
• and,
• trigger system that uses the first clock reference to produce a strobe signal, the strobe signal being used to control when the first sampler takes samples of the first sampled signal, when the second sampler takes samples of the second sampled signal and when the third A/D converter accepts the first difference value.