[原创] Microchip KSZ9031吉比特以太网收发器解决方案

Microchip公司的KSZ9031是支持GMII/MII的吉比特以太网收发器,能在标准的未屏蔽双绞线(UTP)上以三速(10BASE-T/100BASE-TX/1000BASE-T)发送和接收数据,满足IEEE 802.3应用包括激光/网络打印机,网络服务器,宽带网关,吉比特SOHO/SMB路由器,IPTV,IP机顶盒,游戏控制台和IP照相机以及数据,语音和视频媒体中心和媒体转换器.本文介绍了KSZ9031主要特性,框图和系统框图,以及评估板KSZ9031MNX-EVAL主要特性,电路图和材料清单.

The KSZ9031MNX is a completely integrated triple-speed (10BASE-T/100BASE-TX/1000BASE-T) Ethernet physicallayertransceiver for transmission and reception of data on standard CAT-5 unshielded twisted pair (UTP) cable.

The KSZ9031MNX offers the industry-standard GMII/MII (Gigabit Media Independent Interface/Media IndependentInterface) for connection to GMII/MII MACs in Gigabit Ethernet processors and switches for data transfer at 1000 Mbpsor 10/100 Mbps.

The KSZ9031MNX reduces board cost and simplifies board layout by using on-chip termination resistors for the fourdifferential pairs and by integrating an LDO controller to drive a low-cost MOSFET to supply the 1.2V core.

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