TMS320C6657: SGMIICLK jitter spec question - TI E2E support forums There is a much more precise explanation of the jitter limits in Section 3 5 of the Hardware design guide for KeyStone I devices Application Report (SPRABI2D) It provides detailed jitter limits and phase-jitter masks for each SERDES interface type, reference clock rate and data rate
SGMII Troubleshooting Guide - Texas Instruments Serial Gigabit Media Independent Interface (SGMII) is a type of communication interface that connects the Ethernet PHY to the medium access control (MAC) SGMII uses low-voltage differential signaling (LVDS) to receive and transmit data at 10 100 1000 2500 Mbps There are four data signals in SGMII, two for the TX path and two for RX path
Serial-GMII Specification - Archive. org Clearly, SGMII’s 1 25 Gbaud transfer rate is excessive for interfaces operating at 10 or 100 Mbps When these situations occur, the interface “elongates” the frame by replicating each frame byte 10 times for 100 Mbps and 100 types for 10 Mbps
Hardware Design Considerations for PCI Express® and SGMII Provides the groundwork for successful PCI Express® and Serial Gigabit Media Independent Interface (SGMII) system design, including a focus on the careful attention to PCB design and interconnect that these systems demand
10GBASE-L Jitter Specification - IEEE • Set TP3 jitter to be consistent with Draft 3 0 specifications – Adjust TP1-to-TP2 and TP2-to-TP3 DJ to make the numbers agree – Allocate TP3-to-TP4 as in 1GbE • Problems with current Draft 3 0 jitter mask? – Too much DJ TJ at TP3 compared with 1GbE? – Does DJ make sense with scrambled data? Serializer
Jitter Characteristics and Measurements Jitter is defined as the variation of a digital signal's significant instants (such as transition points) from their ideal positions in time Jitter can cause the recovered clock and the data to become momentarily misaligned in time
Understanding and Characterizing Timing Jitter 2 3 Defining Ideal Positions: Clock Recovery e measured, those ideal positions must be identified For a clock-like signal (alternating 1’s and 0’s), the ideal positions conceptually correspond to a jitter-free clock with
DRA821U-Q1: SGMII IO AC specification (time domain) SGMII was validated against the IEEE spec 802 3ap Clause 70-7 1000Base-KX where UI is the Unit interval of 1 25GBaud (800ps) Part Number: DRA821U-Q1 Tool software: Can you provide TI AC specification (time-domain) for SGMII IO of DRA821U2-Q1? Thanks Max
10. 5. 1 SGMII Interface Configuration - Microchip Technology SGMII Interface Signals: TBI to SerDes Important: Timing models for SerDes to Fabric have been updated with additional time delay This changes the timing arcs of nets and interface between SerDes to Fabric Nets To meet timing accuracy, open all Libero v11 7 SP3 designs and re-run Verify Timing
DP83867E SGMII EVM Users Guide - Texas Instruments The DP83867E SGMII EVM (DP83867ERGZ-S-EVM) supports 1000 100 10 Mb s and is compliant with the IEEE 802 3 standard This reference design supports SGMII for MAC connections