1000Base SFP LR(1310nm 20Km)
This enhanced small-form-factor pluggable (SFP) fiber transceiver includes digital diagnostic monitoring (DDM). It complies with Ethernet standards and is ideal for 1.25Gbps data communications. DDM alarms and warnings are integrated through an I2C serial interface under the SFF-8472 multisource agreement (MSA), version 10.4. The transceiver supports 155Mbps to 1.25Gbps and provides a solution for 1310nm transmission over up to 20 kilometers of single-mode fiber. Subwatt consumption and excellent EMI performance support high port density. It is RoHS compliant and designed and tested to industry safety standards, and is a Class I laser product under US FDA/CDRH and international IEC-60825 standards. The SFP LR connects to a standard 20-contact SFP connector for hot swapping, allowing configuration changes or maintenance by replacing the transceiver without switching off the host. Transmitter and receiver DATA interfaces are internally AC-coupled. An LV-TTL transmitter-disable input and loss-of-signal (LOS) output are provided. A bail latch permits easy module removal and complies with the SFP MSA. A single +3.3V supply powers operation at case temperatures of 0°C to +70°C commercially or -40°C to +85°C industrially. The metal case protects against electromagnetic interference.
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Overview
Specifications
| Parameter | Value |
|---|---|
| Absolute Maximum Ratings / Storage Temperature Range T_ST | Min:-40 °C；Max:+85 °C |
| Absolute Maximum Ratings / Case Operating Temperature T_OP [Commercial；Measured on the top side of SFP module at the front center vent hole of the cage] | Min:0 °C；Max:+70 °C |
| Absolute Maximum Ratings / Case Operating Temperature T_OP [Industrial；Measured on the top side of SFP module at the front center vent hole of the cage] | Min:-40 °C；Max:+85 °C |
| Absolute Maximum Ratings / Operating Relative Humidity RH [Non condensing] | Min:0 %；Max:85 % |
| Absolute Maximum Ratings / Supply Voltage Range V_CC | Min:-0.5 V；Max:+3.6 V |
| Transmitter Performance Characteristics / Data Rate B [Over Operating Case Temperature；Vcc=3.13 to 3.47V] | Typ:1.25 Gb/s |
| Transmitter Performance Characteristics / Center Wavelength λ_c [Over Operating Case Temperature；Vcc=3.13 to 3.47V] | Min:1260 nm；Typ:1310 nm；Max:1355 nm |
| Transmitter Performance Characteristics / Spectral Width Δλ₂₀ [Over Operating Case Temperature；Vcc=3.13 to 3.47V] | Max:1.0 nm |
| Transmitter Performance Characteristics / Average Optical Output Power P_avg [Over Operating Case Temperature；Vcc=3.13 to 3.47V；Average power figures are informative only, per IEEE 802.3ae] | Min:-8.2 dBm；Max:+0.5 dBm |
| Transmitter Performance Characteristics / Optical Modulation Amplitude P_OMA [Over Operating Case Temperature；Vcc=3.13 to 3.47V] | Min:-5.2 dBm |
| Transmitter Performance Characteristics / Extinction Ratio ER [Over Operating Case Temperature；Vcc=3.13 to 3.47V] | Min:9 dB |
| Transmitter Performance Characteristics / Relative Intensity Noise RIN [Over Operating Case Temperature；Vcc=3.13 to 3.47V] | Max:-128 dB/Hz |
| Transmitter Performance Characteristics / Side Mode Suppression Ratio SMSR [Over Operating Case Temperature；Vcc=3.13 to 3.47V] | Min:30 dB |
| Transmitter Performance Characteristics / Optical Return Loss Tolerance [Over Operating Case Temperature；Vcc=3.13 to 3.47V] | Max:-12 dB |
| Transmitter Performance Characteristics / Transmitter and Dispersion Penalty @ 1.25Gb/s TDP [Over Operating Case Temperature；Vcc=3.13 to 3.47V；@1.25Gb/s] | Max:3.2 dB |
| Transmitter Performance Characteristics / Average Launch Power of OFF transmitter P_OFF [Over Operating Case Temperature；Vcc=3.13 to 3.47V] | Max:-30 dBm |
| Transmitter Performance Characteristics / Optical Output Eye [Over Operating Case Temperature；Vcc=3.13 to 3.47V] | Compliant with IEEE 802.3ae and ANSI FC 1200-SM-LL-L |
| Receiver Performance Characteristics / Data Rate B [Over Operating Case Temperature；Vcc=3.13 to 3.47V；Unless otherwise noted, typical data at nominal voltage and +25°C ambient temperature] | Typ:1.25 Gb/s |
| Receiver Performance Characteristics / Wavelength of Operation λ [Over Operating Case Temperature；Vcc=3.13 to 3.47V；Unless otherwise noted, typical data at nominal voltage and +25°C ambient temperature] | Min:1260 nm；Typ:1310 nm；Max:1355 nm |
| Receiver Performance Characteristics / Receiver Sensitivity / P_avg @ 1.25Gb/s | Max:-14.4 dBm |
| Receiver Performance Characteristics / Receiver Sensitivity / OMA @ 1.25Gb/s | Max:-12.6 dBm |
| Receiver Performance Characteristics / Stressed Receiver Sensitivity in OMA (@1.25Gb/s) | Max:-10.3 dBm |
| Receiver Performance Characteristics / Maximum Input Power (10⁻¹² BER) P_max [Over Operating Case Temperature；Vcc=3.13 to 3.47V；Unless otherwise noted, typical data at nominal voltage and +25°C ambient temperature；10⁻¹² BER] | Min:+0.5 dBm |
| Receiver Performance Characteristics / Receiver Reflectance [Over Operating Case Temperature；Vcc=3.13 to 3.47V；Unless otherwise noted, typical data at nominal voltage and +25°C ambient temperature] | Max:-12 dB |
| Receiver Performance Characteristics / LOS Hysteresis [Over Operating Case Temperature；Vcc=3.13 to 3.47V；Unless otherwise noted, typical data at nominal voltage and +25°C ambient temperature] | Min:0.5 dB；Typ:1.5 dB |
| Receiver Performance Characteristics / LOS Thresholds / Increasing Light Input P_los+ [Over Operating Case Temperature；Vcc=3.13 to 3.47V；Unless otherwise noted, typical data at nominal voltage and +25°C ambient temperature；Increasing Light Input] | Max:-16 dBm |
| Receiver Performance Characteristics / LOS Thresholds / Decreasing Light Input P_los- [Over Operating Case Temperature；Vcc=3.13 to 3.47V；Unless otherwise noted, typical data at nominal voltage and +25°C ambient temperature；Decreasing Light Input] | Min:-30 dBm |
| Transmitter Electrical Characteristics / Differential Input Impedance Z_d [Over Operating Case Temperature；Vcc=3.13 to 3.47V；Unless otherwise noted, typical data at nominal voltage and +25°C ambient temperature] | Typ:100 Ω |
| Transmitter Electrical Characteristics / Differential Input Voltage Swing V_PP-DIFF [Over Operating Case Temperature；Vcc=3.13 to 3.47V；Unless otherwise noted, typical data at nominal voltage and +25°C ambient temperature] | Min:180 mV；Max:700 mV |
| Transmitter Electrical Characteristics / Input High Voltage (TX Disable) | Min:2.0 V；Max:V_CC |
| Transmitter Electrical Characteristics / Input LOW Voltage (TX Disable) | Min:0 V；Max:0.8 V |
| Transmitter Electrical Characteristics / Output High Voltage (TX Fault) | Min:2.0 V；Max:V_CC+0.3 |
| Transmitter Electrical Characteristics / Output LOW Voltage (TX Fault) | Min:0 V；Max:0.8 V |
| Receiver Electrical Characteristics / Differential Output Impedance Z_d [Over Operating Case Temperature；Vcc=3.13 to 3.47V；Unless otherwise noted, typical data at nominal voltage and +25°C ambient temperature] | Typ:100 Ω |
| Receiver Electrical Characteristics / Differential Output Swing V_PP-DIFF [Over Operating Case Temperature；Vcc=3.13 to 3.47V；Unless otherwise noted, typical data at nominal voltage and +25°C ambient temperature] | Min:300 mV；Max:850 mV |
| Receiver Electrical Characteristics / Output Rise and Fall time (20% to 80%) t_RH, t_FH [Over Operating Case Temperature；Vcc=3.13 to 3.47V；Unless otherwise noted, typical data at nominal voltage and +25°C ambient temperature；20% to 80%] | Min:28 ps |
| Receiver Electrical Characteristics / Output HIGH Voltage (LOS) | Min:2.0 V；Max:V_CC+0.3 |
| Receiver Electrical Characteristics / Output Low Voltage (LOS) | Min:0 V；Max:0.8 V |
| Electrical Power Supply Characteristics / Power Supply Voltage V_CC [Over Operating Case Temperature；Vcc=3.13 to 3.47V；Unless otherwise noted, typical data at nominal voltage and +25°C ambient temperature] | Min:3.13 V；Typ:3.30 V；Max:3.47 V |
| Electrical Power Supply Characteristics / DC Common Mode Voltage V_CM [Over Operating Case Temperature；Vcc=3.13 to 3.47V；Unless otherwise noted, typical data at nominal voltage and +25°C ambient temperature] | Min:0 V；Max:3.60 V |
| Electrical Power Supply Characteristics / Supply Current I_VCC [Over Operating Case Temperature；Vcc=3.13 to 3.47V；Unless otherwise noted, typical data at nominal voltage and +25°C ambient temperature] | Max:300 mA |
| Electrical Power Supply Characteristics / Power Consumption P_W [Over Operating Case Temperature；Vcc=3.13 to 3.47V；Unless otherwise noted, typical data at nominal voltage and +25°C ambient temperature] | Typ:0.85 W；Max:1 W |
Key Features
Datasheet
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Supplier Information
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