ClockMatrix Time-to-Digital Converter (TDC)
■ClockMatrix provides many tools to manage timing references. It has several different modes to align the output clocks, to control the skew, to measure clocks, select clock sources, and have independent timing paths for IEEE 1588 / Precision Time Protocol (PTP) and Synchronous Ethernet (SyncE) based clocks.
■A typical large telecom system consists of Line Cards (LCs), Routing/Switching Processors (RSPs), Timing Cards (TC), Fan Trays, back/mid- planes, and/or switching matrixes. Some of these functions can be combined in the same cards (e.g., RSP can have TC functionality as well). If such a system needs to participate in network timing distribution then it is expected that they support SyncE and IEEE1588 standards. It is also expected that these systems contribute very little constant Time Error (cTE) noise to the network clock.
■This document addresses the usage of ClockMatrix’s Time-to-Digital Converters (TDCs) for precise clock phase measurement using ClockMatrix. It shows the necessary registers to access the TDCs and also the equivalent GUI windows to access using Timing Commander
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Application note & Design Guide |
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Please see the document for details |
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English Chinese Chinese and English Japanese |
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November 9, 2021 |
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AN-1010 |
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2.5 MB |
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