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Overview

Description

The HXC44200 is a bi-directional dual channel PAM-4 CDR/Retimer. It supports a transmission data rate of 56Gbps PAM4 and 28Gbps NRZ. The HXC44200 can be used in a 50G SFP56 form factor and other small form factor modules. The device is optimized for Ethernet application. It is in full compliance with OIF CEI-56G-VSR and CEI-56G-MR. The total power consumption of the HXC44200 is below 700mW.

The HXC44200 has built-in programmable and adaptive equalization in both the receiver and the transmitter paths to compensate for transmission line losses and inter-symbol interference.

Auto DC-offset calibration is implemented with auto phase calibration and the unique CDR / Retimer architecture enables independent receive and transmit CDR loop bandwidth optimization for increased Jitter Tolerance and reduced Jitter Transfer performance.

The chip has a built-in, single 14GHz master VCO providing the oscillator output for each channel. In addition, the self-test functions, such as a PRBS generator / checker, Jitter Tolerance, and Eye Open Monitor, provide designers and users with module-level diagnostics and function tests.

The HXC44200 also integrates a CPU for programmable control, which could reduce BOM cost and enable better module design. I2C interface is used to control the built-in CPU.

Features

  • Single chip 56Gbps CDR/Retimer with transmit and receiver
  • Supports 56Gbps PAM-4 and 28Gbps NRZ
  • Output swing up to 850mVpp
  • 7-bit resolution for programmable and adaptive CTLE up to 7 dB equalization n receiver
  • Programmable 3-tap de-emphasis for a transmit
  • Linearity compensation for output through a look-up table
  • Independent, adaptive bandwidth control in RX CDR for optimum jitter tolerance 
  • Internal and automatic DC and phase offset calibrations
  • Reference-less and Master channel-less operation 
  • On-chip testability: EOM, JTOL, PRBS generator/checker, user-defined pattern generator
  • Embedded CPU with RAM/ROM and downloadable firmware
  • I2C control interface (16-bit address and data)

Comparison

Applications

Documentation

Type Title Date
Datasheet - Short-form PDF 97 KB
End Of Life Notice PDF 1.11 MB
End Of Life Notice PDF 160 KB
3 items

Design & Development

Models

ECAD Models

Schematic symbols, PCB footprints, and 3D CAD models from SamacSys can be found by clicking on products in the Product Options table. If a symbol or model isn't available, it can be requested directly from the website.

Diagram of ECAD Models