| 摘要 |
A SerDes receiver comprising: an input for receiving a signal, the signal having a baud rate; an Analog Finite Impulse Response equalizer (AFIR) for equalizing the received signal, the AFIR comprising: a pre-cursor tap having a pre-cursor coefficient; a cursor tap having a cursor coefficient, the cursor coefficient being constrained to a non-negative value; and a post-cursor tap having a post-cursor coefficient; an adaptation block coupled to the AFIR, the adaptation block configured to adjust the pre-cursor coefficient and the post-cursor coefficient based on the received signal, the adaptation block further being configured to constrain the values of the pre-cursor and post-cursor coefficients to be non-positive. |
| 主权项 |
1. A SerDes receiver comprising:
an input for receiving a signal, the signal having a baud rate; an Analog Finite Impulse Response equalizer (AFIR) for equalizing the received signal, the AFIR comprising:
a pre-cursor tap having a pre-cursor coefficient;a cursor tap having a cursor coefficient, the cursor coefficient being constrained to a non-negative value; anda post-cursor tap having a post-cursor coefficient; an equalizer adaptation block coupled to the AFIR, the equalizer adaptation block configured to adjust the pre-cursor coefficient and the post-cursor coefficient based on the received signal, the adaptation block further being configured to constrain the values of the pre-cursor and post-cursor coefficients to be non-positive; wherein the sum of the pre-cursor, cursor, and post-cursor coefficients is constrained to be greater than K, wherein K is greater than 0. |
