1.25Gbps 40km SFP Optical Transceiver,DDM - Fiber Optic Cabling Management

1.25Gbps 40km SFP Optical Transceiver,DDM

1.25Gbps 120km SFP Optical Transceiver
2020-12-31
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1000Base-Tx to 1000Base-Fx Media Converter
2020-12-31

 

QQ截图20170227112459

1. Feature:

  • SFP package with LC connector
  • 1310nm FP laser and PIN photodetector
  • Up to 40Km transmission on SMF
  • +3.3V single power supply
  • LVPECL compatible data input/output interface
  • Low EMI and excellent ESD protection
  • laser safety standard IEC-60825 compliant
  • Compatible with RoHS
  • Digital Diagnostic SFF-8472 compliant

2. Application:

  • Ethernet
  • Telecom
  • Fiber Channel

3. Absolute Maximum Ratings:

ParameterSymbolMinimumMaximumUnits
Storage TemperatureTst-40+85C
Supply VoltageVcc0+3.6V
Operating Relative HumidityRH595%

4. Operation Environment:

ParameterSymbolMinTypicalMaxUnits
Supply VoltageVcc3.153.33.45V
Operating Case TemperatureCommercialTc0+70C
Industrial-40+85
Power Dissipation1W
Data Rate1.25Gbps

5. Optical Characteristics:

(Ambient Operating Temperature 0C to +70C, Vcc =3.3 V)

ParameterSymbolMin.Typ.Max.Units
Transmitter Section
Center Wavelengtho126013101360nm
Spectral Width(RMS)4nm
Average Output PowerPo-50dBm
Extinction RatioEr1015dB
Rise/Fall Time(20%~80%)Tr/Tf0.26ns
Total jitterTj0.43UI
Optical Eye DiagramIEEE 802.3z and ANSI Fibre Channel Compatible
Receiver Section
Center Wavelengtho12601620nm
Receiver SensitivityRsen-24dBm
Receiver OverloadRov0dBm
Return Loss12dB
LOS AssertLOSA-36dBm
LOS DessertLOSD-24dBm
LOS Hysteresis0.55

6. Electrical Characteristics:

(Ambient Operating Temperature 0C to +70C, Vcc =3.3 V)

ParameterSymbolMin.Typ.Max.unit
Transmitter Section
Input Differential ImpendenceZin90100110Ohm
Data Input Swing DifferentialVin5002400mV
TX DisableDisable2.0VccV
Enable00.8V
TX FaultAssert2.0VccV
Dessert00.8V
Receiver Section
Output differential impendenceZout100Ohm
Data Input Swing DifferentialVout3702000mV
Rx_LOSAssert2.0VccV
Dessert00.8V

7. EEPROM INFORMATION(A0):

AddrField Size

(Bytes)

Name of FieldHEXDescription
01Identifier03SFP
11Ext. Identifier04MOD4
21Connector07LC
3-108Transceiver00 00 00 02 12 00 0D 01Transmitter Code
111Encoding018B10B
121BR, nominal0D1250M bps
131Reserved00
141Length (9um)-km2840km
151Length (9um)64/C8/FF
161Length (50um)37550m
171Length (62.5um)37550m
181Length (copper)00
191Reserved00
20-3516Vendor name57 49 4E 54 4F 50 20 20

20 20 20 20 20 20 20 20

361Reserved00
37-393Vendor OUI00 00 00
40-5516Vendor PNxx xx xx xx xx xx xx xx

xx xx xx xx xx xx xx xx

ASC II
56-594Vendor rev31 2E 30 20V1.0
60-612Wavelength05 1E1310nm
621Reserved00
631CC BASEXXChecksum of byte 0~62
64-652Options00 1ALOS, TX_DISABLE, TX_FAULT
661BR, max3250%
671BR, min3250%
68-8316Vendor SN00 00 00 00 00 00 00 00

00 00 00 00 00 00 00 00

Unspecified
84-918Vendor date codeXX XX XX 20Year, Month, Day
92-943Reserved00
951CC_EXTXXChecksum of byte 64~94
96-255160Vendor-specific

8. Diagnostics:

ParameterRangeAccuracyUnitCalibration
TemperatureC-5 ~ 70±3ºCInternal
I-40 ~ 80±3
Voltage0 ~ VCC0.1VInternal
Bias Current0 ~ 120±2mAInternal
Tx Power-5 ~ 0±1dBmInternal
Rx Power<0±1dBmInternal

9. Pin Description:

PinsNameDescriptionNOTE
1VeeTTransmitter Ground
2Tx FaultTransmitter Fault Indication1
3Tx DisableTransmitter Disable2
4MOD DEF2Module Definition 23
5MOD DEF1Module Definition 13
6MOD DEF0Module Definition 03
7Rate SelectNot Connected
8LOSLoss of Signal4
9VeeRReceiver Ground
10VeeRReceiver Ground
11VeeRReceiver Ground
12RD-Inv. Received Data Output5
13RD+IReceived Data Output5
14VeeRReceiver Ground
15VccRReceiver Power
16VccTTransmitter Power
17VeeTTransmitter Ground
18TD+Transmit Data Input6
19TD-Inv. Transmit Data Input6
20VeeTTransmitter Ground

Notes:

1. TX Fault is an open collector output, which should be pulled up with a 4.7k~10kΩ resistor on the host board to a voltage between 2.0V and Vcc+0.3V. Logic 0 indicates normal operation; logic 1 indicates a laser fault of some kind. In the low state, the output will be pulled to less than 0.8V.

2. TX Disable is an input that is used to shut down the transmitter’s optical output. It is pulled up within the module with a 4.7k~10kΩ resistor. Its states are:

Low (0~0.8V): Transmitter on

(>0.8V, <2.0V): Undefined

High (2.0~3.3V): Transmitter Disabled

Open: Transmitter Disabled

3. MOD-DEF 0,1,2 are the module definition pins. They should be pulled up with a 4.7k~10kΩ resistor on

the host board. The pull-up voltage shall be VccT or VccR.

MOD-DEF 0 is grounded by the module to indicate that the module is present

MOD-DEF 1 is the clock line of the two-wire serial interface for serial ID

MOD-DEF 2 is the data line of the two-wire serial interface for serial ID

4. LOS is an open collector output, which should be pulled up with a 4.7k~10kΩ resistor on the host board to a voltage between 2.0V and Vcc+0.3V. Logic 0 indicates normal operation; logic 1 indicates loss of signal. In the low state, the output will be pulled to less than 0.8V.

5. These are the differential receiver output. They are internally AC-coupled 100Ω differential lines which should be terminated with 100Ω (differential) at the user SERDES.

6. These are the differential transmitter inputs. They are AC-coupled, differential lines with 100Ω differential termination inside the module.

10. Recommended Application Circuit:

11. Outline drawing (mm):

12. Ordering information :

LW-S12-40LDCommercial0~70C
LW-S12-40LIDIndustrial-40~85C