Description

LCP-1250RJ3SR-L

RoHS Compliant Copper Small Form-factor Pluggable (SFP) Transceiver for Gigabit Ethernet with Rx-Los Indicator

The LCP-1250RJ3SR-L is a 3.3V copper small form-factor pluggable (SFP) transceiver. It offers full duplex 1000 Mb/s Ethernet by transporting data over CAT 5 UTP cable（category 5 unshielded twisted pair）, with RJ-45 connection. It takes signals from both CAT 5 UTP cable and the SFP SerDes interface.

The LCP-1250RJ3SR-L provides the SFP’s RX_LOS pin for the link indication of cable side, and also, 1000Base-T auto-nego- -tiation is enabled at default over cable link.

The system host should disable 1000

BASE-X auto-negotiation while LCP-1250RJ3SR-L is used.

The Gigabit Ethernet SFP ports on host systems can work well plugging with both of Delta fible SFP transceiver and Delta copper SFP transceiver, so there is no need of software to configure MAC on host system.

At enhance, the software can configure the PHY device inner LCP-1250RJ3SR-L via SFP two-wire-inter- face. LCP-1250RJ3SR-L can also be operate on SGMII mode, which provides with tri-speed mode, 10/100/1000 Mbps operation over 1.25 GHz serial interfaces, as long as the host

system supports the SGMII interface with no clock mode on SFP cage. The SGMII interface without clock is selected by setting HWCFG_MODE[3:0] bits to ‘0100’.

Features

zCompatible with specifications for IEEE 802.3z/Gigabit Ethernet

zCompliant with MSA specifications for small Form Factor Pluggable （SFP）Ports

zHot-pluggable SFP footprint

z1000 BASE-T operation in the host system with SerDes interface (Default)

z10/100/1000 BASE-T operation in the host system with SGMII interface (To be configured)

zCompliant with industry standard RFT electrical connector and cage

zEEPROM with serial ID functionality

zLCP-1250RJ3SR-L supports RX_LOS enabled

zInternal PHY IC is configurable by host system software via SFP 2-wire-interface

Applications

zGigabit Ethernet over copper

zSwitch to Switch interface

zSwitched backplane applications

zFile server interface

Performance

zLCP-1250RJ3SR-L data link up to 100m on standard CAT 5 UTP

	Oct. 2007 Rev. 1.02
	- 1 -
DELTA ELECTRONICS, INC.	www.deltaww.com