Subsampling communication receiver architecture with relaxed IFA readout timing

A communication receiving apparatus, comprising:

• an input for receiving a communication signal formed as a first periodic voltage waveform;
• a mixer coupled to said input for downconverting the first periodic voltage waveform into a second periodic voltage waveform, including a sampler coupled to said input for obtaining from the first voltage waveform a plurality of temporally distinct samples respectively indicative of areas under corresponding fractional-cycles of the first voltage waveform, and a combiner coupled to said sampler for combining the samples to produce the second voltage waveform;
• said combiner including a drive amplifier for driving the second voltage waveform, and a switching apparatus connected between said sampler and said drive amplifier for connecting said sampler to said drive amplifier during temporally separated readout time intervals, said switching apparatus operable while said sampler is obtaining said samples for disconnecting said sampler from said drive amplifier to create between adjacent pairs of said readout time intervals respective idle time intervals that permit adjustment of said drive amplifier without losing information in the first voltage waveform;
• and
• a signal processing portion coupled to said drive amplifier for receiving and processing the second voltage waveform.