CPC H03M 1/1245 (2013.01) [H03K 5/00 (2013.01); H03K 2005/00286 (2013.01)] | 22 Claims |
1. A phase-shifted sampling module for sampling a signal, the phase-shifted sampling module comprising:
a primary sampler circuit, an ADC circuit, and an equalization circuit,
the primary sampler circuit comprising an analog signal input, a first signal path, and a second signal path,
wherein the first signal path comprises a first analog sampling unit configured to sample an analog input signal received by the analog signal input, thereby generating a first pre-sampled analog input signal,
wherein the second signal path comprises a second analog sampling unit configured to sample the analog input signal in a phase-shifted manner compared to the first analog sampling unit, thereby generating a second pre-sampled analog input signal,
wherein the ADC circuit comprises a first analog-to-digital converter associated with the first signal path, wherein the first analog-to-digital converter is configured to sample the first pre-sampled analog input signal, thereby generating a first digital output signal,
wherein the ADC circuit comprises a second analog-to-digital converter associated with the second signal path, wherein the second analog-to-digital converter is configured to sample the second pre-sampled analog input signal in a phase-shifted manner compared to the first analog-to-digital converter, thereby generating a second digital output signal, and
wherein the equalization circuit comprises a primary sampler equalizer sub-circuit, wherein the primary sampler equalizer sub-circuit is configured to compensate low-frequency mismatches between the first signal path and the second signal path based on the digital output signals.
|