Industrial Temp, Single Port 10/100Mbs Ethernet Physical Layer Transceiver - TLK105


Industrial Temp, Single Port 10/100Mbs Ethernet Physical Layer Transceiver

Recommended alternative parts


The TLK10x is a single-port Ethernet PHY for 10Base-T and 100Base TX signaling. This device integrates all the physical-layer functions needed to transmit and receive data on standard twisted-pair cables. The TLK10x supports the standard Media Independent Interface (MII) and Reduced Media Independent Interface (RMII) for direct connection to a Media Access Controller (MAC).

The TLK10x is designed for power-supply flexibility, and can operate with a single 3.3V power supply or with combinations of 3.3V and 1.55V power supplies for reduced power operation.

The TLK10x uses mixed-signal processing to perform equalization, data recovery, and error correction to achieve robust operation over CAT 5 twisted-pair wiring. This device not only meets the requirements of IEEE 802.3, but maintains high margins in terms of cross-talk and alien noise.

The TLK10x Ethernet PHY has a special Power Back Off mode to conserve power in systems with relatively short cables. This mode provides the flexibility to reduce system power when the system is not required to drive the standard IEEE 802.3 100m cable length, or the extended 150m, error-free cable reach of the TLK10x. For more detail, see application note SLLA328.


  • Low Power Consumption:
    • Single Supply: <205mW PHY, 275mW with Center Tap
    • Dual Supplies: <126mW PHY, 200mW with Center Tap
  • Programmable Power Back Off to reduce PHY power up to 20%
    in systems with shorter cables
  • Low deterministic latency supports IEEE1588 implementation
  • Cable Diagnostics (TLK106)
  • Programmable Fast Link Down Modes, <10µs reaction time
  • Variable I/O voltage range: 1.8V to 3.3V
  • 3.3V MAC Interface
  • Fixed TX Clock to XI, with programmable phase shift
  • Auto-MDIX for 10/100Mbs
  • Energy Detection Mode
  • MII and RMII Capabilities
  • Serial Management Interface
  • IEEE 802.3u MII
  • IEEE 802.3u Auto-Negotiation and Parallel Detection
  • Error-Free 100Base-T Operation up to 150 Meters Under
    Typical Conditions
  • Error-Free 10Base-T Operation up to 300 Meters Under
    Typical Conditions
  • IEEE 802.3u ENDEC, 10Base-T Transceivers and Filters
  • IEEE 802.3u PCS, 100Base-TX Transceivers
  • Integrated ANSI X3.263 Compliant TP-PMD Physical Sublayer
    with Adaptive Equalization and Baseline Wander Compensation
  • Programmable LED Support Link, Activity
  • 10/100Mbs Packet BIST (Built in Self Test)
  • HBM ESD protection on RD± and TD± of 16kV
  • 32-pin QFN (5mm) × (5mm)

View more

Parametrics Compare all products in Ethernet

Port Count
Datarate (Mbps)
SupplyVoltage (Volt)
Cable Length (m)
Operating Temperature Range (C)
Package Group
Estimated Package Size (WxL) (mm2)
Approx. Price (US$)
-40 to 85    
32VQFN: 5 x 5: 25 mm2    
1.28 | 1ku    

Related end equipment

  • Industrial Networks and Factory Automation
  • Real Time Industrial Ethernet Applications such as
    EtherCAT®, Ethernet/IP™, ProfiNET®,
  • Motor and Motion Control
  • General Embedded Applications

Click Here