Overview
The TLK110PTR, produced by Texas Instruments, is a single-port Ethernet Physical Layer (PHY) transceiver designed for 10Base-T and 100Base-TX signaling. This device integrates all the physical-layer functions necessary for transmitting and receiving data on standard twisted-pair cables. It supports both the Media Independent Interface (MII) and the Reduced Media Independent Interface (RMII) for direct connection to a Media Access Controller (MAC).
The TLK110PTR is notable for its power-supply flexibility, allowing operation with either a single 3.3V power supply or a combination of 3.3V and 1.55V power supplies for reduced power consumption. It utilizes mixed-signal processing to perform equalization, data recovery, and error correction, ensuring robust operation over CAT 5 twisted-pair wiring while meeting IEEE 802.3 standards with high margins against cross-talk and alien noise.
Key Specifications
| Parameter | Description |
|---|---|
| Operating Speed | 10Base-T and 100Base-TX |
| Power Supply | Single 3.3V or combination of 3.3V and 1.55V |
| Power Consumption | <205mW (PHY only) at 3.3V, <275mW with center tap (typical) |
| Cable Reach | Error-free operation up to 150 meters for 100Base-TX and up to 300 meters for 10Base-T |
| Interface | MII and RMII |
| Package | 48-pin LQFP (7mm x 7mm) |
| ESD Protection | 16kV HBM on RD± and TD± |
| Special Features | Programmable Power Back Off, IEEE 1588 support, JTAG (IEEE 1149.1) |
Key Features
- Low power consumption with programmable Power Back Off mode to reduce power up to 20% in systems with shorter cables.
- Error-free operation over extended cable lengths: up to 150 meters for 100Base-TX and up to 300 meters for 10Base-T.
- Support for IEEE 802.3u ENDEC, 10Base-T transceivers, and filters.
- Integrated ANSI X3.263 Compliant TP-PMD implementation.
- IEEE 1149.1 JTAG support for testing and debugging.
- Low deterministic latency supporting IEEE 1588 precision time protocol.
- Programmable LED support for link, 10/100Mbs mode, activity, and collision detection.
- 10/100Mbs packet Built-In Self Test (BIST).
Applications
The TLK110PTR is suitable for a variety of applications requiring robust and reliable Ethernet connectivity, including:
- Industrial automation systems
- Networked embedded systems
- Automotive Ethernet applications
- IoT devices requiring Ethernet connectivity
- Telecommunication equipment
Q & A
- What are the supported Ethernet speeds for the TLK110PTR?
The TLK110PTR supports both 10Base-T and 100Base-TX Ethernet speeds.
- What power supply options are available for the TLK110PTR?
The device can operate with either a single 3.3V power supply or a combination of 3.3V and 1.55V power supplies.
- What is the maximum cable reach for error-free operation?
The TLK110PTR supports error-free operation up to 150 meters for 100Base-TX and up to 300 meters for 10Base-T.
- Does the TLK110PTR support any special power-saving features?
Yes, it has a programmable Power Back Off mode to reduce power consumption in systems with shorter cables.
- What interfaces does the TLK110PTR support for connection to a MAC?
The device supports both the Media Independent Interface (MII) and the Reduced Media Independent Interface (RMII).
- What kind of ESD protection does the TLK110PTR offer?
The TLK110PTR has 16kV HBM ESD protection on RD± and TD± pins.
- Does the TLK110PTR support IEEE 1588 precision time protocol?
Yes, it supports IEEE 1588 with low deterministic latency.
- What is the package type and size of the TLK110PTR?
The TLK110PTR comes in a 48-pin LQFP package with dimensions of 7mm x 7mm.
- Does the TLK110PTR have built-in testing capabilities?
Yes, it includes 10/100Mbs packet Built-In Self Test (BIST).
- What are some common applications for the TLK110PTR?
Common applications include industrial automation, networked embedded systems, automotive Ethernet, IoT devices, and telecommunication equipment.
