Avago HFBR-57E5APZ以太网SFP光收发方案

Avago 公司的HFBR-57E5APZ是125MBd SFP光收发器,具有SFF-8074i所规定的SFP接口,并和光收发器数字诊断接口SFF-8472兼容,能提供关于温度,LED偏压电流,LED平均输出电流和接收器平均输入功率的实时信息. HFBR-57E5APZ能和50/125um与62.5/125 um多模光纤工作,和100Base-FX version of IEEE802.3u兼容,单电源3.3V工作,+3.3V TTL CMOS输出,主要用在工厂自动化块速以太网,多模光纤的快速以太网.本文介绍了HFBR-57E5APZ主要特性, 收发器功能方框图, 连接电路图和MSA 所需电源滤波器电路图.

125MBd SFP Transceiver for Fast Ethernet and FDDI Application with DMI Feature, Bail de-latch, Ext Temp (-40 to 85C), RoHS Compliant

The HFBR-57E5APZ Small Form-Factor Pluggable LC transceiver gives the system designer a product to implement FDDI and Fast Ethernet networks with DMI. As an enhancement to the conventional SFP interface defined in SFF-8074i, the HFBR-57E5APZ is compatible
to SFF-8472 (digital diagnostic interface for optical transceivers). Using the 2-wire serial interface defined in the SFF-8472 MSA, the HFBR-57E5APZ provides real-time information on temperature, LED bias current, LED average output power and receiver average input power.

The interface also adds the ability to monitor the Receiver Loss of Signal (RX_LOS).

Transmitter
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