Ascent’s DWDM ITU Channel SFP+ transceivers are designed for use in 10-Gigabit Ethernet links with distances up to 80 km over single-mode fiber. These transceivers include a PIN photo detector diode and temperature stabilized DFB-EML transmitter. Digital diagnostic functions are available via an I2C interface. This module is designed for single-mode fiber and operates at a nominal wavelength of 100 GHz ITU Grid, C Band DWDM wavelength.
• Supports up to 11.3 Gb/s bit rates
• Up to 80 km transmission distance on SMF
• DWDM EML transmitter and APD receiver
• Metal enclosure, for lower EMI
• 2-wire interface with integrated digital diagnostic monitoring
• Hot-pluggable SFP+ footprint
• Specifications compliant with SFF 8472
• Compliant with SFP+ MSA with LC connector
• Single 3.3 V power supply
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 | |
Signal Input Voltage | Vcc‑0.3 | ‑ | Vcc+0.3 | V |
Recommended Operating Conditions
Parameter | Symbol | Min. | Typ. | Max. | Unit | Note |
Case Operating Temperature | Top | 0 | ‑ | 70 | °C | SFPP‑AT‑LP‑DXX‑80 |
‑40 | ‑ | 85 | °C | SFPP‑AT‑LP‑DXX‑80A | ||
Power Supply Voltage | VCC | 3.14 | 3.3 | 3.47 | V | |
Data Rate | BR | 10.3125 | Gbps | |||
Transmission Distance | TD | 80 | m | |||
Coupled Fiber | Single‑mode fiber | 9/125 µm SMF |
Optical Characteristics
Parameter | Symbol | Min. | Typ. | Max. | Unit | Note |
Transmitter | ||||||
Average Launched Power | PO | ‑1 | +4 | dBm | 1 | |
Extinction Ratio | ER | 8.2 | dB | |||
Center Wavelength | λC | λC‑0.1 | λC+0.1 | nm | 2 | |
Center Wavelength Spacing | 100 | GHz | 2 | |||
Spectrum Bandwidth (‑20 dB) | σ | 1.0 | nm | |||
SMSR | 30 | dB | ||||
Transmitter OFF Output Power | POFF | ‑30 | dBm | |||
Transmitter and Dispersion Penalty | TDP | 3.0 | dB | |||
Output Eye Mask | Compliant with IEEE 802.3ae | |||||
Receiver | ||||||
Input Optical Wavelength | λ | 1270 | 1610 | nm | ||
Receiver Sensitivity | RSENS | ‑23.0 | dBm | 3 | ||
Input Saturation Power (Overload) | PSAT | ‑6.0 | dBm | |||
Receiver Reflectance | Rrx | ‑27 | dB | |||
LOS Assert | LOSA | ‑35 | dBm | |||
LOS De‑Assert | LOSD | ‑26 | dBm | |||
LOS Detect Hysteresis | Phys | 0.5 | dB |
Notes:
1. Launched power (avg.) is power coupled into a single‑mode fiber with master connector.
2. λc refer to wavelength selection, and corresponds to approximately 0.8 nm.
3. Measured with conformance test signal for BER = 10‑12 @ 10.3125 Gbps, PRBS = 231‑1, NRZ, optical source with worst ER, wavelength between 1528.77 nm and 1563.86 nm; back to back.
Electrical Characteristics
Parameter | Symbol | Min | Typ | Max | Unit | Note |
Supply Voltage | Vcc | 3.14 | 3.3 | 3.46 | V | |
Supply Current (Note 1) | Icc | 450 | mA | SFPP‑AT‑LP‑DXX‑80 | ||
550 | SFPP‑AT‑LP‑DXX‑80A | |||||
Transmitter | ||||||
Input Differential Impedance | Rin | 100 | Ω | 2 | ||
Single Ended Data Input Swing | Vin‑pp | 180 | 700 | mV | ||
Transmit Disable Voltage | VDis | 2.0 | Vcc | V | 3 | |
Transmit Enable Voltage | VEN | Vee | Vee+ 0.8 | V | ||
Transmit Disable Assert Time | 10 | µs | ||||
Receiver | ||||||
Differential Data Output Swing | Vout‑pp | 400 | 800 | mV | 4 | |
LOS Output High Level | VLOS‑H | 2.0 | VCCHOST | V | 5 | |
LOS Output Low Level | VLOS‑L | Vee | Vee+0.8 | V | 5 |
Notes:
1. Measured with receive Pin=Psen, Vcc=3.3 V, operation temperature range, without air flow
2. Connected directly to TX data input pins. AC coupled.
3. Or open circuit.
4. Into 100 Ω differential termination.
5. Loss Of Signal is LVTTL. Logic 0 indicates normal operation; logic 1 indicates no signal detected.
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10G SFP+ CDR 1550 nm 100 km
10G SFP+ ZR 1550 nm 80 km
10G SFP+ 850 nm 300 m
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