ASCENT’s SFP-AF-LP-51-80 Small Form Factor Pluggable (SFP) transceivers are compatible with the Small Form Factor Pluggable Multi-Sourcing Agreement (MSA). The transceiver consists of five sections: the LD driver, the limiting amplifier, the digital diagnostic monitor, the DFB laser and the PIN photo-detector. The module data link up to 80 km in 9/125um single mode fiber.
• DFB laser transmitter and PIN photo-detector
• Up to 80 km on 9/125 µm SMF
• Hot-pluggable SFP footprint
• Duplex LC/UPC type pluggable optical interface
• Low power dissipation
• Metal enclosure, for lower EMI
• RoHS compliant and lead-free
• Support Digital Diagnostic Monitoring interface
• Single +3.3V power supply
• Compliant with SFF-8472
• Case operating temperature
• Commercial: 0°C to +70°C
• Extended: -10°C to +80°C
• Industrial: -40°C to +85°C
Absolute Maximum Ratings
Item | Symbol | Min. | Typ. | Max. | Unit | Note |
Storage Temperature | Ts | ‑40 | 85 | °C | ||
Relative Humidity | RH | 5 | 95 | % | ||
Power Supply Voltage | VCC | ‑0.5 | 4 | V | ||
Signal Input Voltage | ‑0.3 | Vcc+0.3 | V | |||
Receiver Damage Threshold | +5 | dBm |
Recommended Operating Conditions
Item | Symbol | Min. | Typ. | Max. | Unit | Note |
Case Operating Temperature | Tcase | 0 | 70 | °C | Commercial | |
‑10 | 80 | Extended | ||||
‑40 | 85 | Industrial | ||||
Power Supply Voltage | VCC | 3.13 | 3.3 | 3.47 | V | |
Power Supply Current | ICC | 300 | mA | |||
Data Rate | 155/155 | Mbps | TX Rate/RX Rate | |||
Transmission Distance | 80 | km | ||||
Coupled Fiber | Single‑mode fiber | 9/125 µm SMF |
Specification of Transmitter
Item | Symbol | Min. | Typ. | Max. | Unit | Note |
Average Output Power | POUT | ‑5 | 0 | dBm | 1 | |
Extinction Ratio | ER | 8.2 | dB | |||
Center Wavelength | λC | 1530 | 1550 | 1570 | nm | FP Laser |
Side Mode Suppression Ratio | SMSR | 30 | dB | |||
Spectrum Bandwidth (‑20 dB) | σ | 1 | nm | |||
Transmitter OFF Output Power | POff | ‑45 | dBm | |||
Differential Line Input Impedance | RIN | 90 | 100 | 110 | Ω | |
Output Eye Mask | Compliant with IEEE802.3 z (class 1 laser safety) | 2 |
Notes:
1. Measure at 223‑1 NRZ PRBS pattern.
2. Transmitter eye mask definition
Specification of Receiver
Item | Symbol | Min. | Typ. | Max. | Unit | Notes |
Input Optical Wavelength | λIN | 1270 | 1610 | nm | ||
Receiver Sensitivity | PIN | ‑33 | dBm | 1 | ||
Input Saturation Power (Overload) | PSAT | ‑3 | dBm | |||
LOS De‑assert | LOSD | ‑34 | dBm | |||
LOS Assert | LOSA | ‑45 | dBm | 2 | ||
LOS Hysteresis | 0.5 | 2 | 6 | dB |
Notes:
1. Measured with Light source 1550 nm, ER = 8.2 dB; BER = <10‑12 @ PRBS=223‑1 NRZ.
2. When LOS de‑asserted, the RX data ± output is high‑level (fixed).
Electrical Interface Characteristics
Item | Symbol | Min. | Typ. | Max. | Unit | Notes |
Transmitter | ||||||
Total Supply Current | ICC | A | mA | 1 | ||
Transmitter Disable Input‑High | VDISH | 2 | Vcc+0.3 | V | ||
Transmitter Disable Input‑Low | VDISL | 0 | 0.8 | V | ||
Transmitter Fault Input‑High | VTxFH | 2 | Vcc+0.3 | V | ||
Transmitter Fault Input‑Low | VTxFL | 0 | 0.8 | V | ||
Receiver | ||||||
Total Supply Current | ICC | B | mA | 1 | ||
LOSS Output Voltage‑High | VLOSH | 2 | Vcc+0.3 | V | LVTTL | |
LOSS Output Voltage‑Low | VLOSL | 0 | 0.8 | V |
Notes:
1. A (TX) + B (RX) = 280 mA (Not including termination circuit)
SFP-2G-LP-CXX-40 2.5 Gbps CWDM Single-mode SFP Transceiver
SFP-2G-LP-3155-10 2.5 Gb/s BiDi Single-mode SFP Transceiver
2.5 Gb/s 1310nm Single-mode SFP Transceiver
SFP-2G-LP-31-2K 2.5 Gb/s 1310 nm Single-mode SFP Transceiver
SFP-AGLP-51-120 1.25Gb/s 1550nm Single-mode SFP Transceiver
SFP-AG-LP-51-80 1.25 Gb/s 1550 nm Single-Mode SFP Transceiver
SFP-AG-LP-51-40 1.25 Gbps 1550 nm Single-mode SFP Transceiver
1.25 Gb/s SFP 1550nm 160km Transceiver
SFP-AG-LP-31-40 1.25 Gb/s 1310 nm Single-mode SFP Transceiver
SFPP-AG-LP-31-20 1.25 Gb/s 1310 nm Single-Mode SFP Transceiver
SFPP-AG-LP-31-10 1.25 Gb/s 1310 nm Single-Mode SFP Transceiver
SFP-AG-LP-85-05 1.25Gb/s 850 nm Multi-Mode SFP Transceiver
SFP-AGLP4955-120 SFP BIDI 1.25G 1490/1550 nm 120 km DDM
SFP-AGLP-4955-80 SFP BIDI 1.25G 1490/1550 nm 80 km DDM
SFP-AGLP-3155-40 SFP BIDI 1.25G 1310/1550 nm 40 km DDM
SFP-AGLP-3149-20 SFP BIDI 1.25G 1310/1490 nm 20 km DDM
SFP-AGLP-4931-40 SFP Plug-in, 1.25Gbps, 40km, BIDI, TX=1490nm, RX=1310nm, LC/PC Blue
SFP-AGSP-4931-20 SFP Plug-in, 1.25Gbps, 20km, BIDI, TX=1490nm, RX=1310nm, SC/PC Blue
SFP-AG-CO-01 1000M Copper SFP Transceiver
SFP-AG-CO-02 10/100/1000M Copper SFP Transceiver
SFP-AG-CO-03 10/100/1000M Auto Adapt Copper SFP Transceiver
SFP-AG-CO-04 10/100/1000M Copper SFP Transceiver w/ Link Indicator
SFP-AF-LP-XXXX-20-AN SFP Plug-in, 100Mbps, 20km, BIDI, TX=1490nm, RX=1310nm, LC/PC blue
SFP_ONS-SI-155-I1 SFP Plug-in, OC3 155Mbps 1310nm Single-mode SFP Optical Transceiver, 15km, LC
Get in touch with our experts
Feedback