MaxLinear, Inc. Clock/Timing - Application Specific XRT91L34IVTR

The XRT91L34IVTR is a quad-channel multirate Clock and Data Recovery (CDR) device designed for SONET/SDH applications, supporting data rates of 622.08 Mbps, 155.52 Mbps, and 51.84 Mbps. It integrates a Voltage Controlled Oscillator (VCO) that synchronizes with incoming serial data streams, providing robust clock recovery functionality. The device features automatic data muting during Loss of Signal (LOS) conditions and monitors for Loss of Lock (LOL) events, ensuring reliable operation. This CDR device can operate with either LVDS or Differential LVPECL interfaces and utilizes a reference clock frequency of 19.44 MHz or 77.76 MHz. It includes diagnostics capabilities for LOS monitoring and allows for mixed data rate configurations across its four channels. The XRT91L34IVTR complies with various jitter specifications and operates with dual power supplies of 1.8V core and 3.3V I/O, with typical power dissipation of 90mW for LVDS and 350mW for Differential LVPECL per channel. The product is housed in a 128-pin LQFP package and is RoHS compliant.