TITLK105L工业温度单端口10、100Mbs以太网收发器参考方案方案 ...

TI公司的TLK105L是一款单端口以太网10Base-T和100Base TX 信号收发器芯片，内嵌以双绞线为传输前言的尺度以太网所有物理层吸收和发送数据的功能。别的，通过外部增加光端收发器器件可以实现100Base-FX信号收发功能。该芯片通过MII和RMII接口与内部MAC控制器举行数据交互，供电可接纳3.3V单独电源供电或接纳淘汰功率的3.3V和1.55V组合方式供电。本文首先先容芯片的简介、特点、内部框架图及应用范畴，并给出相应设计方案的设计原理图及元器件列表。

The TLK10xL is a single-port Ethernet PHY for 10Base-T and 100Base TX signaling, integrating all the physical-layer functions needed to transmit and receive data on standard twisted-pair cables. Additionally, the TLK10xL supports 100Base-FX signaling via an external optical transceiver. The device supports the standard Media Independent Interface (MII) and Reduced Media Independent Interface (RMII) for direct connection to a Media Access Controller (MAC).

The device 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 TLK10xL uses mixed-signal processing to perform equalization, data recovery, and error correction to achieve robust operation over CAT 5 twisted-pair wiring. The TLK10xL not only meets the requirements of IEEE 802.3, but maintains high margins in terms of cross-talk and alien noise.

The TLK10xL 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 TLK10xL. For more detail, see application note SLLA328.

TLK105L主要特点：

IEEE 1588 SFD indication enables time stamping by a controller or processor
Low deterministic latency supports IEEE1588 implementation
Low Power Consumption: <205mW PHY and 275mW with Center Tap (Typical)
Programmable Power Back Off to reduce PHY power up to 20% in systems with shorter cables
Cable Diagnostics
Variable I/O voltage range: 1.8V to 3.3V
3.3V MAC Interface
Programmable Fast Link Down Modes, <10µs reaction time
Fixed TX Clock to XI, with programmable phase shift
Auto-MDIX for 10/100Mbs
Energy Detection Mode
MII and RMII Interfaces
Serial Management Interface
IEEE 802.3u MII
IEEE 802.3u Auto-Negotiation and Parallel Detection
IEEE 802.3u 100BASE-FX Fiber Interface
Fully programmable LED for 11 states (Link, Activity , Speed, Blink)
Error-Free Operation up to 150 Meters Under Typical Conditions
IEEE 802.3u PCS, 100Base-TX Transceivers
IEEE 802.3u ENDEC, 10Base-T Transceivers and Filters
Integrated ANSI X3.263 Compliant TP-PMD Physical Sublayer with Adaptive Equalization and Baseline Wander Compensation
Supports 2 LEDs
10/100Mbs Packet BIST (Built in Self Test)
HBM ESD protection on RD± and TD± of 16kV
32-pin QFN (5mm) × (5mm)
Fully pin-compatible with the TLK10x devices

TLK105L应用：

Industrial Networks and Factory Automation
Motor and Motion Control
General Embedded Applications

 
图1. TLK105L内部方框架图

TLK105L方案先容：

Texas Instruments provides the TLK105/6LCUSEVM platform for customer evaluation of TLK105/6L devices, demonstrating the advanced performance described in the TLK10xL data sheet, SLLSEE3. The EVM supports 10/100 Base-T and is compliant with IEEE 802.3 standard. The TLK105/6LCUSEVM operates from a single power supply (5V or 3.3V) from the MII. All other voltages required for the TLK105/6L are internally generated in the device. The TLK105/6LCUSEVM operates over the industrial temperature range.

Features

The TLK105/6CUSEVM features:

• Industrial temperature rating: C40°C ±105°C (the TLK105L maximum temperature is 85°C)
• Industrial-temperature external magnetics
• Control and status:
C Configurable PHY Addresses C any address between 00h-07h (01h default) using jumpers
C 4 LEDs C 2 power and 2 status LEDs (Link)
• Strap options:
C MII or RMII jumper (MII disable)
C Resistor strapping options:
• Configurable PHY Addresses 08h-31h
C RESET_N (RESET) jumper
• Connections for the following interfaces:
C MII connector
C RJ-45 connector
• Single-sided component placement
• On-board clock C Crystal or Oscillator Dual Footprint
• On-board power supplied by MII the connector only, resistors to configure 5V or 3.3V operation

TLK105L方案原理图：

图2. TLK105L方案原理图

TLK105L方案质料清单：

PCB元件结构图：

详见：

sllsee3.pdf

sllu185.pdf