TLK100 Industrial Ethernet PHY |

This product continues to be in production to support existing customers.
Industrial Ethernet PHY

Industrial Ethernet PHY - TLK100

This product is not recommended for new designs.

Replaced By DP83822I – The device has the SAME FUNCTIONALITY as the compared device, but is not pin-for-pin equivalent and may not be parametrically equivalent.

TI does not recommend using this part in a new design. This product continues to be in production to support existing customers.


The TLK100 is a single-port Ethernet PHY for 10BaseT and 100Base TX signaling. It integrates all the physical-layer functions needed to transmit and receive data on standard twisted-pair cables. This device supports the standard Media Independent Interface (MII) for direct connection to a Media Access Controller (MAC).

The TLK100 is designed for power-supply flexibility, and can operate with a single 3.3V power supply or with combinations of 3.3V, 1.8V, and 1.1V power supplies for reduced power operation.

The TLK100 uses mixed-signal processing to perform equalization, data recovery, and error correction to achieve robust operation over CAT 5 twisted-pair wiring. It not only meets the requirements of IEEE 802.3, but maintains high margins in terms of cross-talk and alien noise.


  • Temperature From –40°C to 85°C
  • Low Power Consumption, < 200mW Typical
  • Cable Diagnostics
  • Error-Free Operation up to 200 Meters Under Typical Conditions
  • 3.3V MAC Interface
  • Auto-MDIX for 10/100 Mb/s
  • Energy Detection Mode
  • 25 MHz Clock Out
  • MII Serial Management Interface (MDC and MDIO)
  • IEEE 802.3u MII
  • IEEE 802.3u Auto-Negotiation and Parallel Detection
  • IEEE 802.3u ENDEC, 10BASE-T Transceivers and Filters
  • Bus I/O Protection - ±16kV JEDEC HBM
  • IEEE 802.3u PCS, 100BASE-TX Transceivers
  • Enables IEEE1588 Time-Stamping
  • IEEE 1149.1 JTAG
  • Integrated ANSI X3.263 Compliant TP-PMD Physical Sublayer with
    Adaptive Equalization and Baseline Wander Compensation
  • Programmable LED Support Link, 10/100 Mb/s Mode, Activity,
    and Collision Detect
  • 10/100 Mb/s Packet BIST (Built in Self Test)
  • 48-pin TQFP Package (7mm) × (7mm)
  • Applications
    • Industrial Controls and Factory Automation
    • General Embedded Applications