Patent ID: 8457578

Claim:
An apparatus comprising: a discrete time sampler operative to sample a radio frequency (RF) signal based on a sampling clock at a first rate and provide first analog samples at a second rate higher than the first rate; and a discrete time circuit operative to process the first analog samples and provide second analog samples at a third rate lower than the first rate; wherein the discrete time sampler comprises: a first switch coupled between a first input and a first output of the discrete time sampler, a second switch coupled between the first input and a second output of the discrete time sampler, a third switch coupled between a second input and the first output of the discrete time sampler, and a fourth switch coupled between the second input and the second output of the discrete time sampler, the first and fourth switches being enabled by a first phase of the sampling clock, the second and third switches being enabled by a second phase of the sampling clock, the first and second inputs receiving the RF signal, the first and second outputs providing the first analog samples, and the second rate being twice the first rate.