10GBASE-SR SFP+ Transceiver for 300m MMF Links, 850nm Duplex LC
SFP+10-85-03(SR)-LCD
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- Flexible Customization Support
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The FC-LINK SFP+ 10G 850nm 300m SR LC DX multi-mode transceiver is a high-performance SFP+ module tailored for duplex optical data communication in applications such as 10GBASE-SR and 10GBASE-SW. It is equipped with a 20-pin SFP+ connector, enabling hot-plug capability, and offers digital diagnostic functions via an I2C interface. Designed for multimode fiber, it operates at a nominal wavelength of 850nm. The transmitter employs a Vertical Cavity Surface Emitting Laser (VCSEL) that meets Class 1 laser safety standards under IEC 60825. The receiver includes an integrated GaAs detector preamplifier (IDP) within an optical header and a limiting post-amplifier IC, ensuring reliable and efficient signal processing.
| SPECIFICATIONS | |||
|---|---|---|---|
| Product Model | SFP+10-85-03(SR)-LCD | Manufacturer Brand | FC-LINK |
| Package Type | SFP+ | Optical Connector | Duplex LC |
| Max Data Rate | 11.3Gbps | Channel Data Rate | 10.3125Gbps |
| Effective transmission distance(OM3) | 300m | Effective transmission distance(OM4) | 300m |
| Wavelength | 850nm | Operating Voltage | 3.3V |
| Fiber Type | MMF | Core Size | 50/125µm |
| Transmitter Type | VCSEL | Receiver Type | IDP |
| TX Power | -6~-1dBm | Receiver Sensitivity | -11.1dBm |
| Digital Diagnostic Monitoring(DDM) | YES | Receiver Overload | -1dBm |
| Power Consumption | <1.0W | Protocols | MSA SFP+ SFF-8431 IEEE 802.3ae 10GBASE-SR/SW |
| Operating temperature(Commercial) | 0℃~+70℃ | Storage Temperature(Commercial) | -40℃~+85℃ |
| Operating temperature(Industrial) | -40℃~+85℃ | Storage Temperature(Industrial) | -40℃~+85℃ |
Server-to-Switch Data Center Links
Used for 10G/25G/100G optical uplinks between servers and top-of-rack switches in high-density data center deployments.
Building-to-Building Campus Backbone
Suitable for 1G/10G fiber links between office buildings, campus distribution rooms, and backbone aggregation points.
Access-to-Core Enterprise Uplinks
Designed for switch uplinks from access to aggregation or core layers in enterprise and campus network architectures.
Industrial Switching in Harsh Environments
Applied in industrial Ethernet, automation systems, and outdoor cabinets where wider temperature tolerance and stable fiber communication are required.
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Compatible Brands
Customization Options
Vendor Coding
Private Label
Custom Part Number
Packaging Design
Temperature Grade Selection
| Absolute Maximum Ratings | |||||||||
| Parameter | Symbol | Min. | Max. | Unit | |||||
| Storage temperature | TS | -40 | +85 | °C | |||||
| Supply voltage | VCC | -0.5 | 3.6 | V | |||||
| Input voltage | Vin | -0.5 | Vcc | V | |||||
| Output current | Io | - | 50 | mA | |||||
| Relative humidity | RH | 0 | 85 | % | |||||
| Recommended Operating Environment | |||||||||
| Parameter | Symbol | Min. | Typ. | Max. | Unit | ||||
| Operating case temperature | TC | Standard | 0 | - | 70 | °C | |||
| Industrial | -40 | - | 85 | ||||||
| Power supply voltage | VCC | 3.15 | 3.3 | 3.45 | V | ||||
| Power supply current | ICC | - | - | 300 | mA | ||||
| Surge current | ISurge | - | - | +30 | mA | ||||
| Baud rate | - | 0.6 | - | 11.3 | Gbps | ||||
| Performance Specifications – Electrical | |||||||||
| Parameter | Symbol | Min. | Typ. | Max | Unit | Notes | |||
| Transmitter | |||||||||
| CML inputs (Differential) | Vin | 150 | - | 1200 | mVpp | AC coupled inputs | |||
| Input impedance (Differential) | Zin | 85 | 100 | 115 | ohms | Rin > 100 kohms @ DC | |||
| Tx_DISABLE input voltage – high | - | 2 | - | Vcc+0.3 | V | - | |||
| Tx_DISABLE input voltage – low | - | 0 | - | 0.8 | V | - | |||
| Tx_FAULT output voltage – high | - | 2 | - | Vcc+0.3 | V | Io = 400µA; Host Vcc | |||
| Tx_FAULT output voltage – low | - | 0 | - | 0.8 | V | Io = -4.0mA | |||
| Receiver | |||||||||
| CML outputs (Differential) | Vout | 350 | - | 700 | mVpp | AC coupled outputs | |||
| Output impedance (Differential) | Zout | 85 | 100 | 115 | ohms | - | |||
| Rx_LOS output voltage – High | - | 2 | - | Vcc+0.3 | V | lo = 400µA; Host Vcc | |||
| Rx_LOS output voltage – Low | - | 0 | - | 0.8 | V | lo = -4.0mA | |||
| MOD_DEF ( 2:0 ) | VoH | 2.5 | - | - | V | With Serial ID | |||
| VoL | 0 | - | 0.5 | V | |||||
| Optical and Electrical Characteristics | |||||||||
| Parameter | Symbol | Min. | Typ. | Max. | Unit | ||||
| 50 / 125 um MMF | - | - | 300 | - | m | ||||
| Data rate | - | 0.6 | - | 11.3 | Gbps | ||||
| Transmitter | |||||||||
| Centre wavelength | λC | 840 | 850 | 860 | nm | ||||
| Spectral width (RMS) | Δλ | - | - | 0.45 | nm | ||||
| Average output power | Pout | -6 | - | -1 | dBm | ||||
| Extinction ratio | ER | 3.0 | 5.0 | - | dB | ||||
| Output optical eye | IEEE 802.3-2005 Compliant | ||||||||
| Transmitter dispersion penalty | TDP | - | - | 3.9 | dB | ||||
| TX_Disable assert time | t_off | - | - | 10 | us | ||||
| TX_DISABLE negate time | t_on | - | - | 1 | ms | ||||
| TX_BISABLE time to start reset | t_reset | 10 | - | - | us | ||||
| Time to initialize, include reset of TX_FAULT | t_init | - | - | 300 | ms | ||||
| TX_FAULT from fault to assertion | t_fault | - | - | 100 | us | ||||
| Total jitter | TJ | - | - | 0.28 | UI(p-p) | ||||
| Data dependent jitter | DDJ | - | - | 0.1 | UI(p-p) | ||||
| Uncorrelated jitter | UJ | - | - | 0.023 | RMS | ||||
| Receiver | |||||||||
| Centre wavelength | λC | 840 | 850 | 860 | nm | ||||
| Receiver sensitivity(OMA) | Pmin | - | - | -11.1 | dBm | ||||
| Stressed receiver sensitivity (OMA) | Pmin | - | - | -7.5 | dBm | ||||
| Receiver overload | Pmax | -1 | - | dBm | |||||
| Optical return loss | ORL | - | - | -12 | dB | ||||
| LOS de-assert | LOSD | - | - | -12.5 | dBm | ||||
| LOS assert | LOSA | -25 | - | - | dBm | ||||
| LOS hysteresis | - | 0.5 | - | - | dB | ||||
| SFP+ TRANSCEIVER ELECTRICAL PAD LAYOUT |
| PIN FUNCTION DEFINITIONS | |||||||||
| Pin | Name | Function | Plug Seq. | Notes | |||||
| 1 | VeeT | Transmitter ground | 1 | ||||||
| 2 | TX Fault | Transmitter fault indication | 3 | Note 1 | |||||
| 3 | TX Disable | Transmitter disable | 3 | Note 2, Module disables on high or open | |||||
| 4 | SDA | Module definition 2 | 3 | Data line for serial ID. | |||||
| 5 | SCL | Module definition 1 | 3 | Clock line for serial ID. | |||||
| 6 | MOD-ABS | Module definition 0 | 3 | Note 3 | |||||
| 7 | RS0 | RX rate select (LVTTL). | 3 | No function implement.. | |||||
| 8 | LOS | Loss of signal | 3 | Note 4 | |||||
| 9 | RS1 | TX rate select (LVTTL). | 1 | No function implement.. | |||||
| 10 | VeeR | Receiver ground | 1 | Note 5 | |||||
| 11 | VeeR | Receiver ground | 1 | Note 5 | |||||
| 12 | RD- | Inv. 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 | 3.3V ± 5%, Note 7 | |||||
| 16 | VccT | Transmitter power | 2 | 3.3V ± 5%, Note 7 | |||||
| 17 | VeeT | Transmitter ground | 1 | Note 5 | |||||
| 18 | TD+ | Transmit data in | 3 | Note 8 | |||||
| 19 | TD- | Inv. Transmit data in | 3 | Note 8 | |||||
| 20 | VeeT | Transmitter ground | 1 | Note 5 | |||||
| Notes: 1) TX Fault is an open collector/drain output, which should be pulled up with a 4.7KΩ – 10KΩ resistor on the host board. Pull up voltage between 2.0V and VccT/R+0.3V. When high, output indicates a laser fault of some kind. Low indicates normal operation. In the low state, the output will be pulled to < 0.8V. 2) TX disable is an input that is used to shut down the transmitter optical output. It is pulled up within the module with a 4.7KΩ~10 KΩ resistor. Its states are: Low (0 – 0.8V): Transmitter on (>0.8, < 2.0V): Undefined High (2.0 – 3.465V): Transmitter Disabled Open: Transmitter Disabled 3) Module Absent, connected to VeeT or VeeR in the module. 4) LOS (Loss of Signal) is an open collector/drain output, which should be pulled up with a 4.7KΩ –10KΩ resistor. Pull up voltage between 2.0V and VccT/R+0.3V. When high, this output indicates the received optical power is below the worst-case receiver sensitivity (as defined by the standard in use). Low indicates normal operation. In the low state, the output will be pulled to < 0.8V. 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 module and is thus not required on the host board. The voltage swing on these lines will be between 370 and 700 mV differential (185 –350 mV single ended) when properly terminated. 7) VccR and VccT are the receiver and transmitter power supplies. They are defined as 3.3V ±5% at the SFP+ connector pin. Maximum supply current is 300mA. Inductors with DC resistance of less than 1 ohm should be used in order to maintain the required voltage at the SFP+ input pin with 3.3V supply voltage. When the recommended supply-filtering network is used, hot plugging of the SFP+transceiver module will result in an inrush current of no more than 30mA greater than the steady state value. VccR and VccT may be internally connected within the SFP+ transceiver module. 8) TD-/+: These are the differential transmitter inputs. They are AC-coupled, differential lines with 100Ω differential termination inside the module. The AC coupling is done inside the module and is thus not required on the host board. The inputs will accept differential swings of 150 – 1200 mV (75 – 600mV single-ended), though it is recommended that values between 150 and 1200 mV differential (75 – 600mV single-ended) be used for best EMI performance. |
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Performance Testing
Each module is tested before shipment to help ensure stable optical and electrical performance.
Compatibility Verification
Compatibility validation is available for major switch and router platforms.
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