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Delta Electronics LCP-1250RJ3SR-S Specification Sheet
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Delta Electronics LCP-1250RJ3SR-S Specification Sheet

Delta electronics small form-factor pluggable transceiver specification sheet
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Description
The LCP-1250RJ3SR-S is a 3.3V copper
small form-factor pluggable (SFP) transceiver.
It offers full duplex 1000M/s Ethernet by
transporting data over standard CAT 5 UTP
cable（category 5 unshielded twisted pair, with
R J-45 connection. It takes signals from both
CAT 5 UTP cable and the SFP SerDes
interface.
The system host （MAC）must enable
SGMII
auto-negotiation
LCP-1250RJ3SR-S is oper ated to setup the
partner linking at one speed of 10/100/1000
Mbps by 1000Base-T auto-negot iation.
The Gigabit Ethernet SFP ports on host
systems can work well plugging with both of
Delta fiber 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-S via SFP
two-wire-interface. The SGMII interface without
clock is selected by setting HWCFG_MODE[3:0]
bits to '1100' or '1000'.
DELTA ELECTRONICS, INC.
Features
Compliant with specifications for IEEE
802.3z/Gigabit Ethernet
Compliant with MSA specifications for Small
Form Factor Pluggable （SFP）Ports
Hot-pluggable SFP footprint
10/100/1000 BASE-T operation in the host
system with SGMII interface (Default)
1000 BASE-T operation in the host system with
SerDes interface (To be configured)
Compliant with industry standard RFT electrical
connector and cage
EEPROM with serial ID functionality
Auto-Negotiation follows IEEE 802.3u Clause
28 (1000BASE-T) and Cisco SGMII Spec.
Compatible with the Cisco specification of
SGMII interface.LCP-1250RJ3SR-S supports
the SGMII interface without clock on MAC side.
Gigabit PHY device is integrated internally
Internal PHY IC is configurable by host system
software via SFP 2-wire-interface.
while
Applications
Gigabit Ethernet over copper
Switch to Switch interface
Switched backplane applications
File server interface
Performance
LCP-1250RJ3SR-S data link up to 100m on
standard CAT 5 UTP
1
LCP-1250RJ3SR-S
Oct. 17. 2007 Rev. 1.02
www.deltaww.com

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Summary of Contents for Delta Electronics LCP-1250RJ3SR-S

  • Page 1 The system host （MAC）must enable SGMII auto-negotiation LCP-1250RJ3SR-S is oper ated to setup the partner linking at one speed of 10/100/1000 Mbps by 1000Base-T auto-negot iation. The Gigabit Ethernet SFP ports on host systems can work well plugging with both of...
  • Page 2 Bits Field HWCFG_ MODE Absolute Maximum Ratings Parameter Storage Temperature Supply Voltage Recommended Operating Conditions Parameter Ambient Operating Temperature Supply Voltage DELTA ELECTRONICS, INC. LCP-1250RJ3SR LCP-1250RJ3SR-L *note1 1000Base-X 1.25Gbps SerDes 1.25Gbps SerDes 1000Base-T 1000Mbps only 1000Mbps only Mode Description Changes to these bits are disruptive to the normal operation;...

  • Page 3: Electrical Characteristics

    4.7K – 10K Ohm resistor on host Board 3. Internally AC coupled, but requires a 100-Ohm differential termination at MAC side. 4. These are unfiltered 20%~80% values SFP Transceiver Electrical Pad Layout DELTA ELECTRONICS, INC. Symbol Min. Typ.
  • Page 4 VeeT Transmitter Ground Transmitter Data In Inverse Transmitter Data In VeeT Transmitter Ground Plug Seq.: Pin engagement sequence during hot plugging. DELTA ELECTRONICS, INC. Function Plug Seq. LCP-1250RJ3SR-S Notes Note 5 Note 1 - Function not available Note 2 - Module disables on high or...
  • Page 5 8) TD+ and TD- are the transmitted differential inputs, and they are terminated with 100Ω differential load inside the module. The AC coupling is done inside the module, and thus not required on the host board. DELTA ELECTRONICS, INC. LCP-1250RJ3SR-S www.deltaww.com...
  • Page 6 LCP-1250RJ3SR-S Recommend Circuit Schematic Oct. 17. 2007 Rev. 1.02 www.deltaww.com DELTA ELECTRONICS, INC.
  • Page 7 LCP-1250RJ3SR-S Package Outline Drawing for Metal Housing Oct. 17. 2007 Rev. 1.02 www.deltaww.com DELTA ELECTRONICS, INC.
  • Page 8 Byte 128-255 had been set hex.00. LCP-1250RJ3SR-S Internal PHY Register (Two-Wire Address 0xAC) LCP-1250RJ3SR-S is internally designed of physical layer IC (Marvell 88E1111), which can be programmed via two-wire interface with the device address 0xAC. For details of PHY IC registers in 88E1111, see “...
  • Page 9 2. “IEEE Std 802.3, 2002 Edition”. IEEE Standards Department, 2002. 3. “AT24C01A/02/04/08/16 2-Wire Serial CMOS EEPROM”, Atmel Corporation. www.atmel.com 4. “Alaska Ultra 88E1111 Integrated 10/100/1000 Gigabit Ethernet Transceiver”, Marvell Corporation. www.marvell.com 5. “Serial-GMII Specification Revision 1.8”, Cisco System Corporation. www.cisco.com, Oct. 17. 2007 Rev. 1.02 www.deltaww.com DELTA ELECTRONICS, INC.