112Gbps ELR SerDes IP for TSMC 5nm

The Cadence® 112Gbps Multi-Rate Extended Long-Reach (ELR) PHY IP for TSMC 5nm operates at 56-112Gbps using PAM4 modulation or 1-56Gbps using NRZ. This IP enables high-speed communications between chips, backplane, and long-haul optical interconnects by converting between parallel data and extremely high-speed serial data streams with improved signal reliability. The ELR PHY provides additional performance margin to high-loss and reflective channels by incorporating reflection cancellation and enhanced digital signal processing. The area- and poweroptimized design is ideal for high port-density applications that require ELR performance.

The quad-lane multi-rate PHY IP supports flexible data rate from 1-112G with its ultra-low jitter two-stage PLL architecture. An integrated microcontroller allows for fully autonomous startup, adaptation, and service operation without requiring ASIC intervention. A programming and observation interface is provided via a parallel bus with MDIO-style addressing (port, device, address).

There are several comprehensive on-chip diagnostic tools that enable testability and easy debugging. A post-equalized histogram is available for accurate estimation of bit error rate (BER) even in the absence of actual bit errors. Vertical eye statistics can be logged to allow optional optimization of the device settings. The Channel Estimator hardware allows the accurate measurement of the channel response to assess package, connector, and trace characteristics.

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