BCM5222

Features:

* Dual-port 10/100BASE-TX IEEE 802.3u Fast Ethernet transceiver
* Power consumption: <195 mW per port
* Unique energy detection circuit to enable intelligent power management
* HP auto-MDIX
* Robust CESD tolerance
* Cable length indication
* Cable noise level indication
* Cable length greater than 140 meters
* Well under 10 PPM defect ratio quality
* Industrial temperature range (-40 to 85C°)
* MII/7-wire serial interface
* IEEE 1149.1 (JTAG) scan chain support
* MII management via serial port
* 100-pin PQFP and 100-pin fpBGA package




Application

* IP Phones
* Backplane Bus Communication
* Embedded Telecom
* Print Servers




Description

With a power dissipation of less than 195 mW per port, the BCM5222 is the industry's lowest-power Fast Ethernet PHY. In addition, the BCM5222 has several intelligent power-down states that conserve power, yet allow products based on it to automatically turn on when needed.

The BCM5222 includes a unique Intelligent Power-Management feature that powers down the device if energy is not detected on the cable. The energy detect feature is especially useful for portable and power-sensitive applications, as the BCM5222 draws virtually no energy if the cable is not plugged in and the client is not connected to the network. This results in noticeably extended battery life for portable applications, and increases product reliability due to decreased power dissipation. For lowest power consumption, the BCM5222 can be put in a power-off state (<2.0 mW).