ASCENT 2.5G 10 km BiDi Small Form Factor Pluggable (SFP) transceiver modules are compatible with the Small Form Factor Pluggable Multi-Sourcing Agreement (MSA).
• Operating data rate up to 2.5 Gbps
• 1310 nm and 1550 nm operating wavelength
• PIN-TIA receiver
• 20 km with 9/125 µm SMF
• Single 3.3V power supply
• Hot-pluggable SFP footprint
• LC connector interface
• Power dissipation < 1.0 W
• Operating temperature: 0 °C to +70 °C
• Compliant with SFF-8472
• Compliant with MSA SFP specification
• Class 1 FDA and IEC60825-1 laser safety compliant
Parameter | Symbol | Min. | Max. | Unit |
Storage Temperature | Ts | ‑40 | +85 | °C |
Maximum Supply Voltage | Vcc | ‑0.5 | 3.6 | V |
Operating Relative Humidity | RH | 5 | 85 | % |
Note: Exceeding any one of these values may destroy the device immediately.
Recommended Operating Conditions
Parameter | Symbol | Min. | Typ. | Max. | Unit | |
Operating Case Temperature | Tc | 0 | 70 | °C | ||
Power Supply Voltage | Vcc | 3.15 | 3.3 | 3.47 | V | |
Power Supply Current | Icc | 300 | mA | |||
Data Rate | FC | 1.063 | Gbps | |||
2XFC | 2.125 | |||||
OC‑48/STM‑16 | 2.5 |
Optical Characteristics
Parameter | Symbol | Min. | Typ. | Max. | Unit | |
9 µm Core Diameter MMF | L | 20 | km | |||
Data Rate | 2.488 | Gbps | ||||
Transmitter | ||||||
Center Wavelength | SFP‑2G‑3155‑10 | λC | 1290 | 1310 | 1330 | nm |
SFP‑2G‑5531‑10 | λC | 1530 | 1550 | 1570 | nm | |
Spectral Width (‑20 dB) | ∆λ | 1 | nm | |||
Side Mode Suppression Ratio | SMSR | 30 | dB | |||
Average Output Power1 | Pout | ‑5 | 0 | dBm | ||
Extinction Ratio | ER | 8.2 | dB | |||
Rise/Fall Time (20 % to 80 %) | tr/tf | 0.16 | ns | |||
Output Optical Eye2 | Compliant with IEEE 802.3 | |||||
Pout@TX Disable Asserted | Pout | ‑45 | dBm | |||
Receiver | ||||||
Center Wavelength | SFP‑2G‑3155‑10 | λC | 1530 | 1550 | 1570 | nm |
SFP‑2G‑5531‑10 | λC | 1290 | 1310 | 1330 | nm | |
Receiver Sensitivity*(Note3) | Pmin | ‑18 | dBm | |||
Receiver Overload | Pmax | ‑3 | dBm | |||
LOS De‑Assert | LOSD | ‑19 | dBm | |||
LOS Assert | LOSA | ‑30 | dBm | |||
LOS Hysteresis | 0.5 | dB |
Notes:
1. Output is coupled into a 9/125 µm SMF.
2. Filtered, measured with a PRBS 223 ‑ 1 test pattern @ 2.5 Gbps.
3. Minimum average optical power, measured at BER less than 1E‑12, with 223‑1 PRBS and ER = 8.2 dB.
Electrical Characteristics
Parameter | Symbol | Min. | Typ. | Max. | Unit | Notes | |
Transmitter | |||||||
LVPECL Inputs (Differential) | Vin | 400 | 2000 | mVpp | AC Coupled Inputs1 | ||
Input Impedance (Differential) | Zin | 85 | 100 | 115 | Ω | Rin > 100 kΩ @ DC | |
TX_Dis | Disable | 2 | Vcc+0.3 | V | |||
Enable | 0 | 0.8 | |||||
TX_FAULT | Fault | 2 | Vcc+0.3 | V | |||
Normal | 0 | 0.8 | |||||
Receiver | |||||||
LVPECL Outputs (Differential) | Vout | 400 | 2000 | mVpp | AC Coupled Outputs1 | ||
Output Impedance (Differential) | Zout | 85 | 100 | 115 | Ω | ||
TX_Disable Assert Time | t_off | 10 | µs | ||||
RX_LOS | LOS | 2 | Vcc+0.3 | V | |||
Normal | 0 | 0.8 | |||||
MOD_DEF (0.2) | VoH | 2.5 | Vcc+0.3 | V | With Serial ID | ||
VoL | 0 | 0.5 |
Notes:
1. LVPECL logic, internally AC coupled.
Digital Diagnostic Functions
Parameter | Range | Unit | Accuracy | Calibration |
Temperature | 0 to 70 | °C | ±3 °C | Internal / External |
Voltage | 3.0 to 3.6 | V | ±3 % | Internal / External |
Bias Current | 10 to 80 | mA | ±10 % | Internal / External |
TX Power | ‑5 to 0 | dBm | ±3 dB | Internal / External |
RX Power | ‑18 to ‑3 | dBm | ±3 dB | Internal / External |
Note: The transceivers provide serial ID memory contents and diagnostic information about the present operating conditions by the 2‑wire serial interface (SCL, SDA). The diagnostic information with internal calibration or external calibration all are implemented, including received power monitoring, transmitted power monitoring, bias current monitoring, supply voltage monitoring and temperature monitoring.
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