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LCP-1250RJ3SR RoHS Compliant Copper Small Form-factor Pluggable (SFP) Transceiver for Gigabit Ethernet
Features
Compliant with specifications for IEEE 802.3z/Gigabit Ethernet Hot-pluggable SFP footprint 10/100/1000 BASE-T operation in the host systems with SGMII interface 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 IEEE 802.3z Clause 37 (1000BASE-X) Access to physical layer IC via 2-wire serial bus Compact RJ-45 connector assembly
Description
The LCP-1250RJ3SR is a 3.3V copper small form-factor pluggable (SFP) transceiver designed for Gigabit Ethernet over standard category 5 unshielded twisted pair (CAT 5 UTP) and provided with RJ-45 connection. It is also compatible with industry standard RFT electrical connector and cage. Through LCP-1250RJ3SR, the 1000BASE-X fiber Auto-negotiation on the host board side is transparently converted to 1000BASE-T Auto-negotiation on the copper side. The host systems used to work with fiber SFPs will also work with LCP-1250RJ3SR copper SFPs, so there is no need to change MAC software. The LCP-1250RJ3SR copper SFP also 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 clocks.
Applications
Gigabit Ethernet over copper Switch to switch interface Switched backplane applications File server interface
Performance
LCP-1250RJ3SR data link up to 100m on standard CAT 5 UTP
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DELTA ELECTRONICS, INC.
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LCP-1250RJ3SR
Product Selection
Part Number Link Indicator on RX_LOS Pin Auto-negotiation on MAC side Enabled by default MAC side Interface Auto-negotiation on copper side Enabled by default Speed Mode Notes: 1. This part supports the 1000 Base-T with SerDes interface by default. It can operate in 10/100/1000 Base-T with SGMII interface by reconfiguration of the PHY within the SFP. 2. This part uses the SFP's Rx-Los pin for link indication and 1000 Base-T auto-negotiation should be disabling on the host system. It can operate in 10/100/1000 Base-T with SGMII interface by reconfiguration of the PHY within the SFP. 3. This part supports the 10/100/1000 Base-T with SGMII interface by default. LCP-1250RJ3SR *note 1 N/A 1000Base-X 1.25Gbps SerDes 1000Base-T 1000Mbps only LCP-1250RJ3SR-L *note 2 Available Yes 1.25Gbps SerDes 1000Base-T 1000Mbps only LCP-1250RJ3SR-S *note 3 N/A SGMII SGMII without clock 1000Base-T 10/100/1000Mbps
Absolute Maximum Ratings
Parameter Storage Temperature Supply Voltage Symbol Ts VCC Min. -40 0 Typ. Max. 85 5 Unit C V Note
Recommended Operating Conditions
Parameter Ambient Operating Temperature Supply Voltage Symbol TA VCC Min. 0 3.135 Typ. Max. 70 3.465 Unit C V Note
Electrical Characteristics
(TA=0 C to 70 C, VCC=3.135V to 3.465V) Parameter Supply Current Transmitter Transmitter Differential Input Voltage Differential Input Impedance Transmitter Disable Input-High Transmitter Disable Input-Low Receiver Data Output Differential Voltage Differential Output Impedance Data Output Rise/Fall Time Symbol ICC VD,TX ZTX VDISH VDISL VD,RX ZRX tr,Rx/ tf,Rx 2
DELTA ELECTRONICS, INC.
Min. 0.5 80 2.0 0 0.35 80
Typ. 350 100
Max. 400 2.4 120 VCC+0.3 0.8 2 120
Unit mA V Ohm V V V Ohm ps
Note 1
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100 180
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LCP-1250RJ3SR
Notes: 1. Internally AC coupled and terminated to 100-Ohm differential load. 2. Pull up to VCC with a 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
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DELTA ELECTRONICS, INC.
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LCP-1250RJ3SR
Pin Function Definitions
Pin Num. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Name VeeT TX Fault TX Disable MOD-DEF2 MOD-DEF1 MOD-DEF0 Rate Select LOS VeeR VeeR VeeR RDRD+ VeeR VccR VccT VeeT TD+ TDVeeT Function Transmitter Ground Transmitter Fault Indication Transmitter Disable Module Definition 2 Module Definition 1 Module Definition 0 Not Connect Loss of Signal Receiver Ground Receiver Ground Receiver Ground Inverse Received Data Out Received Data Out Receiver Ground Receiver Power Transmitter Power Transmitter Ground Transmitter Data In Inverse Transmitter Data In Transmitter Ground Plug Seq. 1 3 3 3 3 3 3 3 1 1 1 3 3 1 2 2 1 3 3 1 Notes Note 5 Note 1 - Function not available Note 2 - Module disables on high or open Note 3 - Two-wire serial ID interface Note 3 - Two-wire serial ID interface Note 3 - grounded in module Function not available Note 4 - Function not available Note 5 Note 5 Note 5 Note 6 Note 6 Note 5 Note 7 - 3.3V 5% Note 7 - 3.3V 5% Note 5 Note 8 Note 8 Note 5
Plug Seq.: Pin engagement sequence during hot plugging. Notes:
1) 2) TX Fault is not supported and tied to ground. TX disable is an input that is used to reset the chip of Gigabit Ethernet PHY inside the copper SFP. It is pulled up within the module with a 4.7 - 10 K resistor. Low (0 - 0.8V): (>0.8, < 2.0V): High (2.0 - 3.465V): Open: 3) Transmitter on Undefined Transmitter Disabled Transmitter Disabled They should be pulled up with a 4.7K - 10K resistor on the host board.
These are the module definition pins. present.
The pull-up voltage shall be VccT or VccR. MOD-DEF 0 is grounded in the module to indicate that the module is MOD-DEF 1 and MOD-DEF 2 are the clock and data lines of the two-wire serial interface, respectively.
4) 5) 6)
LOS (Loss of Signal) is not available and tied to ground. VeeR and VeeT are internally connected within the copper SFP. RD+ and RD- are the received differential outputs, and they are AC-coupled 100 differential lines that should be terminated with 100 (differential) at user's SERDES. terminated. 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
7)
VccR and VccT are the receiver and transmitter power supplies, and they are internally connected within the copper SFP. The power rail is defined as 3.3V 5% at the SFP connector pin.
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DELTA ELECTRONICS, INC.
Dec., 2006 Rev. 1.01
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LCP-1250RJ3SR
8) TD+ and TD- are the transmitted differential inputs, and they are terminated with 100 differential load inside the module. The AC coupling is done inside the module, and thus not required on the host board.
Recommend Circuit Schematic
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DELTA ELECTRONICS, INC.
Dec., 2006 Rev. 1.01
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LCP-1250RJ3SR
Package Outline Drawing for Metal Housing
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DELTA ELECTRONICS, INC.
Made in CHINA
FS
Dec., 2006 Rev. 1.01
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LCP-1250RJ3SR
LCP-1250RJ3SR EEPROM Serial ID Memory Contents (Two-Wire Address A0h)
Address Hex ASCII Address Hex ASCII Address Hex ASCII Address Hex ASCII Address Hex ASCII Address Hex ASCII 00 03 25 20 50 33 3 75 SN 100 00 125 00 01 04 26 20 51 53 S 76 SN 101 00 126 00 02 00 27 20 52 52 R 77 SN 102 00 127 00 03 00 28 20 53 20 78 SN 103 00 04 00 29 20 54 20 79 SN 104 00 05 00 30 20 55 20 80 SN 105 00 06 08 31 20 56 30 81 SN 106 00 07 00 32 20 57 30 82 SN 107 00 08 00 33 20 58 30 83 SN 108 00 09 00 34 20 59 30 84 DC Note 3 109 00 10 00 35 20 60 00 85 DC 110 00 11 01 36 00 61 00 86 DC 111 00 12 0D 37 00 62 00 87 DC 112 00 13 00 38 00 63 CS1 Note 1 88 DC 113 00 14 00 39 00 64 00 89 DC 114 00 15 00 40 4C L 65 01 90 DC 115 00 16 00 41 43 C 66 00 91 DC 116 00 17 00 42 50 P 67 00 92 00 117 00 18 64 43 2D 68 SN Note 2 93 00 118 00 19 00 44 31 1 69 SN 94 00 119 00 20 44 D 45 32 2 70 SN 95 CS2 Note 4 120 00 21 45 E 46 35 5 71 SN 96 00 121 00 22 4C L 47 30 0 72 SN 97 00 122 00 23 54 T 48 52 R 73 SN 98 00 123 00 24 41 A 49 4A J 74 SN 99 00 124 00
Notes: 1) 2) 3) 4) 5) Byte 63: Check sum of bytes 0-62. Byte 68-83 (SN): Serial number. Byte 84-91 (DC): Date code. Byte 95 (CS2): Check sum of bytes 64-94. Byte 128--255 had been set hex. 00.
LCP-1250RJ3SR Internal PHY Register (Two-Wire Address 0xA6)
LCP-1250RJ3SR is internally designed of physical layer IC (Marvell 88E1111), which can be programmed via two-wire interface with the device address 0xA6. For details of PHY IC registers in 88E1111, see Marvell document "Alaska Ultra 88E1111 Integrated Gigabit Ethernet Transceiver".
Electromagnetic Emission
FCC Class A, CE Class A, VCCI Class A, C-Tick
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DELTA ELECTRONICS, INC.
Dec., 2006 Rev. 1.01
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LCP-1250RJ3SR
Related Product
1. 2. 3. LCP-1250RJ3SR-L, SFP Copper Transceiver with Rx-Los Indicator, IEEE 802.3z/Gigabit Ethernet, standard CAT 5 UTP GBIC-1250RJ3SR, GBIC Transceiver, 1250Mb/s, data link up to 100 m on standard CAT 5 UTP. LCP-1250RJ3SR-S, SFP Copper Transceiver with SGMII interface, IEEE 802.3z/Gigabit Ethernet, standard CAT 5 UTP
References
1. "Small Form-factor Pluggable (SFP) Transceiver MultiSource Agreement (MSA)", September 14, 2000 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,
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DELTA ELECTRONICS, INC.
Dec., 2006 Rev. 1.01
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