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RoHS Compliant Copper Small Form-factor Pluggable (SFP)
Transceiver for Gigabit Ethernet with Rx-Los Indicator
Description
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
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
DELTA ELECTRONICS, INC.
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
Compatible with specifications for IEEE
802.3z/Gigabit Ethernet
Compliant with MSA specifications for small
Form Factor Pluggable （SFP）Ports
Hot-pluggable SFP footprint
1000 BASE-T operation in the host system with
SerDes interface (Default)
10/100/1000 BASE-T operation in the host
system with SGMII interface (To be configured)
Compliant with industry standard RFT electrical
connector and cage
EEPROM with serial ID functionality
LCP-1250RJ3SR-L supports RX_LOS enabled
Internal PHY IC is configurable by host system
software via SFP 2-wire-interface
Applications
Gigabit Ethernet over copper
Switch to Switch interface
while
Switched backplane applications
File server interface
Performance
LCP-1250RJ3SR-L data link up to 100m on
standard CAT 5 UTP
- 1 -
LCP-1250RJ3SR-L
.
Oct
2007 Rev. 1.02
www.deltaww.com
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Related Manuals for Delta Electronics LCP-1250RJ3SR-L
Summary of Contents for Delta Electronics LCP-1250RJ3SR-L
- Page 1 SFP 2-wire-interface Applications Gigabit Ethernet over copper Switch to Switch interface while Switched backplane applications File server interface Performance LCP-1250RJ3SR-L data link up to 100m on standard CAT 5 UTP - 1 - LCP-1250RJ3SR-L 2007 Rev. 1.02 www.deltaww.com...
- 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 Available 1000Base-X 1.25Gbps SerDes 1.25Gbps SerDes 1000Base-T 1000Base-T 1000Mbps only 1000Mbps only Mode...
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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 100Ω (differential) at user’s SERDES. The AC coupling is done inside the copper SFP and thus not required on the host board. The differential voltage swing will be between 250mV and 625 mV, while properly terminated. DELTA ELECTRONICS, INC. Function Plug Seq.
- 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. Recommend Circuit Schematic DELTA ELECTRONICS, INC. LCP-1250RJ3SR-L - 5 - www.deltaww.com...
- Page 6 LCP-1250RJ3SR-L 2007 Rev. 1.02 - 6 - www.deltaww.com DELTA ELECTRONICS, INC.
- Page 7 LCP-1250RJ3SR-L Package Outline Drawing for Metal Housing 2007 Rev. 1.02 - 7 - www.deltaww.com DELTA ELECTRONICS, INC.
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Page 8: Electromagnetic Emission
5) Byte 128-255 had been set hex.00. LCP-1250RJ3SR-L Internal PHY Register (Two-Wire Address 0xAC) LCP-1250RJ3SR-L 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 Marvell document “... - Page 9 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, 2007 Rev. 1.02 - 9 - www.deltaww.com DELTA ELECTRONICS, INC.