TI TLK105L 工业温度单端口10、100Mbs以太网收发器参考设计方案

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媒介的标准以太网所有物理层接收和发送数据的功能。此外，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控制器进行数据交互，供电可采用3.3V单独电源供电或采用减少功率的3.3V和1.55V组合方式供电。本文首先介绍芯片的简介、特性、内部框图及应用领域，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主要特性：
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 (Typica...