Delta Electronics LCP-1250RJ3SR-L User manual

LCP-1250RJ3SR-L
DELTA ELECTRONICS, INC.
- 1 -
Oct.2007 Rev. 1.02
www.deltaww.com
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 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

LCP-1250RJ3SR-L
DELTA ELECTRONICS, INC.
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Oct.2007 Rev. 1.02
www.deltaww.com
Product Selection
Part Number LCP-1250RJ3SR
*note1
LCP-1250RJ3SR-L
*note2
LCP-1250RJ3SR-S
*note3
Link Indictor On RX_LOS
Pin N/A Available N/A
Auto-negotiation on MAC
side Enabled by default 1000Base-X Yes SGMII
MAC side Interface 1.25Gbps SerDes 1.25Gbps SerDes SGMII without clock
Auto-negotiation on
copper side Enabled by
default 1000Base-T 1000Base-T 1000Base-T
Speed Mode (default) 1000Mbps only 1000Mbps only 10/100/1000Mbps
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 PHYwithin 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.
Serial Interface Configuration (PHY Two-Wire Address 0xAC)
Register Bits Field Mode Description
27 3:0 HWCFG_
MODE
R/W Changes to these bits are disruptive to the normal
operation; hence, any changes to these registers must be
followed by software reset to take effect.
Upon hardware reset Register 27.3:0 defaults to the value
in HWCFG_MODE[3:0].
0100 = SGMII without Clock with SGMII Auto-Neg to
copper
1000 = 1000BASE-X without Clock with 1000BASE-X
Auto-Neg to copper (GBIC)
1100 = 1000BASE-X without Clock without 1000BASEX
Auto-Neg to copper
Absolute Maximum Ratings
Parameter Symbol Min. Typ. Max. Unit Note
Storage Temperature Ts −40 85 ºC
Supply Voltage VCC 0 5 V
Recommended Operating Conditions
Parameter Symbol Min. Typ. Max. Unit Note
Ambient Operating Temperature TA0 70 ºC
Supply Voltage VCC 3.135 3.465 V

LCP-1250RJ3SR-L
DELTA ELECTRONICS, INC.
- 3 -
Oct.2007 Rev. 1.02
www.deltaww.com
Electrical Characteristics
(TA=0 ºC to 70 ºC, VCC=3.135V to 3.465V)
Parameter Symbol Min. Typ. Max. Unit Note
Supply Current ICC 350 400 mA
Transmitter
Transmitter Differential Input Voltage VD,TX 0.5 2.4 V 1
Differential Input Impedance ZTX 80 100 120 Ohm
Transmitter Disable Input-High VDISH 2.0 VCC+0.3 V
Transmitter Disable Input-Low VDISL 0 0.8 V
Receiver
Data Output Differential Voltage VD,RX 0.35 2 V 3
Differential Output Impedance ZRX 80 100 120 Ohm
Data Output Rise/Fall Time tr,Rx/ tf,Rx 180 ps 4
LOS Output Voltage-High VSDHL 2.0 VCC +0.3 V 2
LOS Output Voltage-Low VSDL 0 0.8 V 2
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

LCP-1250RJ3SR-L
DELTA ELECTRONICS, INC.
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Oct.2007 Rev. 1.02
www.deltaww.com
Pin Function Definitions
Pin Num. Name Function Plug Seq. Notes
1 VeeT Transmitter Ground 1 Note 5
2 TX Fault Transmitter Fault Indication 3 Note 1 - Function not available
3 TX Disable Transmitter Disable 3 Note 2 - Module disables on high or
open
4 MOD-DEF2 Module Definition 2 3 Note 3 - Two-wire serial ID interface
5 MOD-DEF1 Module Definition 1 3 Note 3 - Two-wire serial ID interface
6 MOD-DEF0 Module Definition 0 3 Note 3 - grounded in module
7 Rate Select Not Connect 3 Function not available
8 LOS Loss of Signal 3 Note 4 - Function not available
9 VeeR Receiver Ground 1 Note 5
10 VeeR Receiver Ground 1 Note 5
11 VeeR Receiver Ground 1 Note 5
12 RD- Inverse Received Data Out 3 Note 6
13 RD+ Received Data Out 3 Note 6
14 VeeR Receiver Ground 1 Note 5
15 VccR Receiver Power 2 Note 7 - 3.3V ± 5%
16 VccT Transmitter Power 2 Note 7 - 3.3V ± 5%
17 VeeT Transmitter Ground 1 Note 5
18 TD+ Transmitter Data In 3 Note 8
19 TD- Inverse Transmitter Data In 3 Note 8
20 VeeT Transmitter Ground 1 Note 5
Plug Seq.: Pin engagement sequence during hot plugging.
Notes:
1) TX Fault is not supported and tied to ground.
2) 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): Transmitter on
(>0.8, < 2.0V): Undefined
High (2.0 – 3.465V): Transmitter Disabled
Open: Transmitter Disabled
3) These are the module definition pins. They should be pulled up with a 4.7K – 10Kresistor on the host board.
The pull-up voltage shall be VccT or VccR. MOD-DEF 0 is grounded in the module to indicate that the module is
present. MOD-DEF 1 and MOD-DEF 2 are the clock and data lines of the two-wire serial interface, respectively.
4) LOS (Loss of Signal) is the indicator signal of 1000BASE-T link-up/ link-down status. HIGH outputted of LOS
indicates link-down, LOW is linkup status. The LOS signal operation on copper SFP transceiver differs from
optical SFP applications. It should be, pulled up with a 4.7K – 10Kresistor on the host board.
5) VeeR and VeeT are internally connected within the copper SFP.
6) 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. 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.

LCP-1250RJ3SR-L
DELTA ELECTRONICS, INC.
- 5 -
Oct.2007 Rev. 1.02
www.deltaww.com
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.
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

LCP-1250RJ3SR-L
DELTA ELECTRONICS, INC.
- 6 -
Oct.2007 Rev. 1.02
www.deltaww.com

LCP-1250RJ3SR-L
DELTA ELECTRONICS, INC.
- 7 -
Oct.2007 Rev. 1.02
www.deltaww.com
Package Outline Drawing for Metal Housing

LCP-1250RJ3SR-L
DELTA ELECTRONICS, INC.
- 8 -
Oct.2007 Rev. 1.02
www.deltaww.com
LCP-1250RJ3SR-L 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 2D - 78 SN 103 00
04 00 29 20 54 4C L 79 SN 104 00
05 00 30 20 55 20 80 SN 105 00
06 08 31 20 56 30 0 81 SN 106 00
07 00 32 20 57 30 0 82 SN 107 00
08 00 33 20 58 30 0 83 SN 108 00
09 00 34 20 59 30 0 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) Byte 63(CS1): Check sum of bytes 0-62.
2) Byte 68-83 (SN): Serial number.
3) Byte 84-91 (DC): Date code.
4) Byte 95 (CS2): Check sum of bytes 64-94.
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 “Alaska Ultra 88E1111 Integrated Gigabit Ethernet Transceiver”.
Electromagnetic Emission
FCC Class A, CE Class A, VCCI Class A, C-Tick

LCP-1250RJ3SR-L
DELTA ELECTRONICS, INC.
- 9 -
Oct.2007 Rev. 1.02
www.deltaww.com
Related Product
1. LCP-1250RJ3SR, SFP Copper Transceiver, IEEE 802.3z/Gigabit Ethernet, standard CAT 5 UTP
2. GBIC-1250RJ3SR, GBIC Transceiver, 1250Mb/s, data link up to 100 m on standard CAT 5 UTP.
3. 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,