Texas Instruments DP83869HM Gigabit Physical Layer (PHY) Transceiver

Texas Instruments DP83869HM Gigabit Physical Layer (PHY) Transceiver has integrated PMD sublayers that support 10BASE-Te, 100BASE-TX, and 1000BASE-T Ethernet protocols. The DP83869 also supports 1000BASE-X and 100BASE-FX Fiber protocols. Optimized for ESD protection, the Texas Instruments DP83869HM exceeds 8kV IEC 61000-4-2 (direct contact). This device interfaces to the MAC layer through Reduced GMII (RGMII) and SGMII. In 100M mode, the device lets the designer use MII for lower Latency. Programmable integrated termination impedance on RGMII/MII helps reduce system BOM.

Features

  • Multiple operating modes
    • Media support: Copper and fiber
    • Media conversion between copper and fiber
    • A bridge between RGMII and SGMII
  • Maximum ambient temperature of 125°C
  • Exceeds 8kV IEC61000-4-2 ESD
  • Low RGMII latency
    • Total latency ≤ 384ns for 1000Base-T
    • Total latency ≤ 361ns for 100Base-TX
  • Low power consumption
    • < 150mW for 1000Base-X
    • < 500mW for 1000Base-T
  • Time Sensitive Network (TSN) compliant
  • Recovered clock output for SyncE
  • Selectable synchronized clock output of 25MHz and 125MHz
  • 1000Base-X, 100Base-FX compatible with SFP MSA specification
  • IEEE1588 support via SFD
  • Wake on LAN support
  • Configurable IO voltages of 1.8V, 2.5V, and 3.3V
  • SGMII, RGMII, MII MAC interface
  • Jumbo frame support for 1000M and 100M speed
  • Cable diagnostics
    • TDR
    • BIST
  • A programmable RGMII termination impedance
  • Integrated MDI termination resistor
  • Fast link drop modes
  • Compatible to IEEE 802.3 1000Base-T, 100Base-TX, 10Base-Te,1000Base-X, 100Base-FX

Applications

  • Industrial factory automation
  • Grid infrastructure
  • Motor and motion control
  • Test and measurement
  • Building automation

Standard Ethernet System Block Diagram

Block Diagram - Texas Instruments DP83869HM Gigabit Physical Layer (PHY) Transceiver
Published: 2019-01-21 | Updated: 2023-06-06