RX AMI Model

SerDes supports the programmable single pole continuous time linear equalization (CTLE) at the receiver. The linear equalization comprises of amplifying higher frequency components that have been more severely attenuated by the Interconnect, or attenuating the lower frequency components to a greater degree than the higher frequency components.

The low-frequency attenuation level and the low-frequency flat-band bandwidth are programmable, as shown in the following figure.

Figure 1. Continuous Time Linear Equalization Response

Both ALF and ωc (f0) can be set to maximize the signal quality of the receiver for achieving the highest possible bit error rate (BER).