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RoHS Compliant Single Mode SFP Transceiver for GbE and Fiber
Channel
Description
The LCP-1250 series are hot pluggable 3.3V
Small-Form-Factor transceiver modules designed
expressly
for
high-speed
applications that require rates up to 1.25Gb/s.
The transceiver is data rate transparent, which
means it can support GbE (1.25Gb/s) as well as
1x Fiber channel (1.062Gb/s) operations
The LCP-1250 series are designed to be
compliant with SFP Multi-source Agreement
(MSA).
Digital diagnostic monitoring functions
(Temperature, V
, TX optical power, TX laser
CC
bias current, and RX received optical power)
compliant with SFF-8472 are also available. See
order information for details.
The post-amplifier of the LCP-1250 series
also includes a Loss of Signal (LOS) circuit that
provides a TTL logic-high output when the
received optical level is below a preset LOS
Assert threshold.
DELTA ELECTRONICS, INC.
FEATURES
Compliant with SFP Transceiver SFF-8472
MSA specification with internal calibration
Compliant with Specifications for IEEE
802.3z/Gigabit Ethernet
Single + 3.3V Power Supply and TTL Logic
Interface
EEPROM with Serial ID Functionality
Laser Class 1 Product which comply with the
requirements of IEC 60825-1 and IEC 60825-2
Duplex LC Connector interface
Applications
Gigabit Ethernet
Switch to Switch interface
communication
Switched backplane applications
File server interface
Performance
LCP-1250B4Mxx: 1310nm DFB laser, 21dB link
budget (40km)
LCP-1250D4Mxx: 1550nm DFB laser, 17dB link
budget (40km)
LCP-1250D4Wxx: 1550nm DFB laser, 21dB link
budget (70km)
LCP-1250D4Rxx: 1550nm DFB laser, 25dB link
budget (80km)
LCP-1250D4Vxx: 1550nm DFB laser, 30dB link
budget (100km)
1
Nov., 2006
Rev. 6B
www.deltaww.com
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Related Manuals for Delta Electronics Network Device LCP-1250
Summary of Contents for Delta Electronics Network Device LCP-1250
- Page 1 Loss of Signal (LOS) circuit that provides a TTL logic-high output when the received optical level is below a preset LOS Assert threshold. DELTA ELECTRONICS, INC. FEATURES Compliant with SFP Transceiver SFF-8472 MSA specification with internal calibration Compliant with Specifications for IEEE 802.3z/Gigabit Ethernet...
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Page 2: Absolute Maximum Ratings
1. Internally AC coupled and terminated to 100Ohm differential load. 2. Pull up to V on host Board 3. Internally AC coupled, but requires a 100Ohm differential termination at or internal to Serializer/ Deserializer. 4. These are 20%~80% values DELTA ELECTRONICS, INC. Symbol Min. Typ. Symbol Min. - Page 3 LOS-Hysteresis Overload LCP-1250B4Mxx LCP-1250D4 Series LCP-1250D4Vxx Notes: 1. These are unfiltered 20%~80% values 2. The sensitivity is provided at a BER of 1×10 -1 PRBS and ER=9dB. DELTA ELECTRONICS, INC. -1 NRZ) Symbol Min. Typ. 1274 1310 λ 1530 1550 σ...
- Page 4 Mask of the eye diagram for the optical transmit signal SFP Transceiver Electrical Pad Layout Nov., 2006 Rev. 6B www.deltaww.com DELTA ELECTRONICS, INC.
- Page 5 5) VeeR and VeeT may be internally connected within the SFP module. 6) RD-/+: These are the differential receiver outputs. They are AC coupled 100Ω differential lines which should be terminated with 100Ω (differential) at the user SERDES. The AC coupling is done inside the DELTA ELECTRONICS, INC. Function Plug Seq.
- Page 6 500 and 1200 mV differential (250 – 600 mV single-ended) be used for best EMI performance. Recommend Circuit Schematic Protocol Vcc Tx_Disable Tx_Fault Protocol IC SerDes IC Rx_LOS PLD / PAL DELTA ELECTRONICS, INC. 3.3V RES1 10uF 0.1uF Tx_Disable Tx_Fault TD + TD - VeeT...
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Page 7: Package Outline Drawing
Package Outline Drawing Nov., 2006 Rev. 6B www.deltaww.com DELTA ELECTRONICS, INC. - Page 8 Time from fault to TX fault on. Time TX Disable must be held high to reset TX_Fault 6) Time from LOS state to Rx LOS assert 7) Time from non-LOS state to Rx LOS deassert DELTA ELECTRONICS, INC. Symbol Min. t_off...
- Page 9 (96 bytes) Vender Specific (32 bytes) Reserved in SFP MSA (128 bytes) Digital Diagnostic Memory Map Specific Data Field Descriptions DELTA ELECTRONICS, INC. 2 wire address 1010001 X (A2h) Alarm and Warning Thresholds (56 bytes) Cal Constants (40 bytes) Real Time Diagnostic Interface...
- Page 10 Byte 15: Transmission distance in 100m, distance >25.5km: FFh Byte 40-55: Delta part number Byte 60-61: The center wavelength of transmitter Byte 63: Check sum of bytes 0-62. Byte 68-83: Serial number. Byte 84-91: Date code. DELTA ELECTRONICS, INC. Address ASCII Note 5 Note 5 Note 6...
- Page 11 : Operating current at room temperature. The min. setting current is 0 mA. 3) P: Operating optical power of transmitter at room temperature. 4) P : Overload optical power of receiver : Sensitivity optical power of receiver DELTA ELECTRONICS, INC. Name Value (Dec.) (MAX.)+15 (MAX.)+10 (MIN.)+10...
- Page 12 TX Optical Power RX Optical Power Notes: Temperature is measured internal to the transceiver. DELTA ELECTRONICS, INC. Name Digital state of the Tx disable input pin Read/ Write bit that allow software disable of laser Digital state of the Tx fault output pin Digital state of the LOS output pin.
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Page 13: Regulatory Compliance
D: Single-mode 1550nm : Power Supply Voltage and SD Level 4: 3.3V, TTL SD Level Distance M: 40km W: 70km R: 80km V: 100km DELTA ELECTRONICS, INC. Reference Qty’ FCC Class B EN 55022 Class B CISPR 22 EN 61000-4-3 IEC 1000-4-3... -
Page 14: Revision History
Aug., 2006 First release Nov., 2006 1. To add spec of RIN in data sheet. 2. To Change spec of sensitivity for LCP-1250B4MDRx and LCP-1250D4RDRx 3. To change spec of Tx optical power for LCP-1250B4MDRx DELTA ELECTRONICS, INC. www.deltaww.com Nov., 2006 Rev. 6B...
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