Patent ID: 7505541
Filing Date: 2009-03-17
Classification: H03D,H03L,H04L

Abstract:
1. A multi-mode phase and data detector, comprising: phase detector operably coupled to produce phase information and transition information based on a feedback signal and a multi-level input data signal, the phase detector further including: charge pump block operably coupled to generate an error signal based on the phase information and the transition information; controlled oscillation module operably coupled to convert the error signal into an oscillating signal; and feedback module operably coupled to generate the feedback signal based on the oscillating signal and a divider value, wherein each of the first and second transparent latching blocks produce the first and second latched signals, respectively, and further wherein each of the first and second transparent latching blocks comprises a plurality of parallel coupled latched comparators each biased to one of a plurality of bias levels.