BCM5221中文资料Single-Port RMII/MII Copper/Fiber Fast Ethernet Transceiver数据手册Broadcom规格书

描述 Description

With a power dissipation of <275 mW, the BCM5221 is the industry's lowest-power single-channel Fast Ethernet PHY.
 With a power dissipation of <275 mW, the BCM5221 is the industry's lowest-power Fast Ethernet PHY. It features an integrated voltage regulator, and can be supplied by either a 2.5 V or 3.3 V power source. The BCM5221 incorporates several Intelligent Power Management features, including three low-power modes with varying levels of power dissipation. The device is capable of powering down when not connected to the network, making it ideal for power-sensitive applications such as portable computer LOMs and PCMCIA/CardBus cards. The BCM5221 can also be set to periodically power up at user-defined intervals, allowing the system to initiate \"keep-alive\" traffic on the network, and can be put in a power-off state. In addition, the BCM5221 also incorporates the HP Auto-MDIX feature, which automatically detects and corrects the polarity of crossed cables, resulting in simplified local area network (LAN) installation and maintenance. The BCM5221 was designed and tested to withstand over 9 kV of cable-sourced electrostatic discharge (CESD), which occurs when an electrically charged network cable is plugged into networking equipment. The CESD performance prevents the system from being destroyed due to this electric discharge during installation and cable insertion. For documentation and support, visit Broadcom Communities

特性 Features

·Unique energy detection circuit enables Intelligent Power Management
·HP Auto-MDIX: Simplifies and reduces the cost of network installation, debug and maintenance
·Faster design turn-around with BCM5201 layout compatibility

应用 Application

Network Interface Cards (NICs)
Routers
Switches
Servers
Blade Servers
Gaming Devices\\u00a0

简介

BCM5221属于集成电路（IC）的驱动器接收器收发器。由制造生产的BCM5221驱动器，接收器，收发器该系列产品的主要功能是提供必需的硬件资源，以通过延长电缆或印制线进行通信。确切的功能会因所采用的通信协议而异，可能包括诸如瞬态抑制之类的功能，这些功能对于通信用途可能并非绝对必要，但对于可能的使用环境却是明智之选。