Ascent’s SFP+ transceivers are designed for use in 6.25 Gigabit Ethernet links with distances up to 2 km over single-mode fiber. These transceivers include a PIN photo detector diode and FP transmitter. Digital diagnostic functions are available via a 2-wire interface.
• Up to 2 km transmission distance
• FP transmitter and PIN photo-detector
• Duplex LC connector
• Metal enclosure, for lower EMI
• Electrical interface compliant to SFF-8431 specifications
• 2-wire interface for management specifications compliant with SFF-8472
• compliant with SFP+ MSA
• Single 3.3V power supply
• Power dissipation < 1.2W
• Case operating temperature range: Commercial: 0 °C to +70 °C
• Industrial: -40 °C to +85 °C
Absolute Maximum Ratings
Parameter | Symbol | Min. | Typ. | Max. | Unit | Note |
Storage Temperature | Ts | ‑40 | ‑ | 85 | °C | |
Relative Humidity | RH | 5 | ‑ | 95 | % | |
Power Supply Voltage | VCC | ‑0.3 | ‑ | 4 | V |
Recommended Operating Conditions
Parameter | Symbol | Min. | Typ. | Max. | Unit | Note |
Case Operating Temperature | Tcase | 0 | ‑ | 70 | °C | Commercial |
‑40 | ‑ | 85 | °C | Industrial | ||
Power Supply Voltage | VCC | 3.14 | 3.3 | 3.47 | V | |
Power Supply Current | ICC | ‑ | 360 | mA | ||
Data Rate | BR | 6.25 | Gbps | |||
Transmission Distance | TD | 2 | km | |||
Coupled Fiber | Single‑mode fiber | 9/125 µm SMF |
Electrical Characteristics
Parameter | Symbol | Min. | Typ. | Max. | Unit | Note |
Supply Voltage | Vcc | 3.15 | 3.3 | 3.46 | V | |
Supply Current | Icc | 360 | mA | |||
Transmitter | ||||||
Input Differential Impedance | Rin | 100 | Ω | 1 | ||
Differential Data Input Swing | Vin,pp | 180 | 600 | mV | ||
Transmit Disable Voltage | VDIS | Vcc‑1.3 | Vcc | V | ||
Transmit Enable Voltage | VEN | Vee | Vee+ 0.8 | V | 2 | |
Transmit Disable Assert Time | 10 | us | ||||
Receiver | ||||||
Differential Data Output Swing | Vout,pp | 300 | 850 | mV | 3 | |
Data Output Rise Time | tr | 28 | ps | 4 | ||
Data Output Fall Time | tf | 28 | ps | 4 | ||
LOS Fault | VLOS fault | Vcc‑1.3 | VCCHOST | V | 5 | |
LOS Normal | VLOS norm | Vee | Vee+0.8 | V | 5 |
Notes:
1. Connected directly to TX data input pins. AC coupled thereafter.
2. Or open circuit.
3. Into 100 Ω differential termination.
4. 20 % to 80 %.
5. Loss Of Signal is LVTTL. Logic 0 indicates normal operation; logic 1 indicates no signal detected.
Optical Characteristics
Parameter | Symbol | Min. | Typ. | Max. | Unit | Note |
Transmitter | ||||||
Average Output Power | POUT | ‑6.5 | 0.5 | dBm | 1 | |
Optical Wavelength | λ | 1260 | 1355 | nm | ||
Spectral Width (RMS) | σ | 3.5 | nm | |||
Optical Extinction Ratio | ER | 3.5 | dB | |||
RIN | RIN | ‑128 | dB/Hz | |||
Receiver | ||||||
Rx Sensitivity | RSEN | ‑14.4 | dBm | 2 | ||
Input Saturation Power (Overload) | PSAT | 0.5 | dBm | |||
Input Optical Wavelength | λC | 1270 | 1610 | nm | ||
LOS De ‑Assert | LOSD | ‑17 | dBm | |||
LOS Assert | LOSA | ‑30 | dBm | |||
LOS Hysteresis | 0.5 | 1.0 | dB |
Notes:
1. Class 1 Laser Safety per FDA/CDRH and IEC‑825‑1 regulations.
2. Measured with a PRBS 231‑1 test pattern @ 6.25 Gb/s, BER<10‑12.
10G SFP+ LR 1310 nm 40 km
10G SFP+ LR 1310 nm 20 km
10G SFP+ LR 1310 nm 10 km
10G SFP+ LRM 1310 nm 2 km
10G SFP+ ER 1550 nm 40 km
10G SFP+ CDR 1550 nm 100 km
10G SFP+ ZR 1550 nm 80 km
10G SFP+ 850 nm 300 m
10G SFP+ Tunable DWDM 80 km
10G SFP+ DWDM 80 km
10G SFP+ DWDM 40 km
10G SFP+ CWDM 80 km
10G SFP+ CWDM 2733 60 km
10G SFP+ CWDM 40 km
10G SFP+ CWDM 10 km
10G SFP+ CWDM 2733 40 km
10G SFP+ CWDM 2733 10 km
10G XFP LR 1310 nm 20 km
10G XFP LR 1310 nm 10 km
10G XFP ER 1550 nm 40 km
10G XFP ZR 1550 nm 80 km
10G XFP CWDM 2633 60 km
10GBASE-T SFP+ Copper RJ45 30 m
10G SFP+ CWDM 1610 80 km
10GB SFP+ Copper RJ45 30 m
16G SFP+ FC 850 nm 100 m
8.5G SFP+ SR 850 nm 150 m
6.25G SFP+ SR 850 nm 300 m