ASCENT’s SFP-AG-LP-51-160 Small Form Factor Pluggable (SFP) transceivers are flexible solution as an interface for switches, routers, servers, and other optical links. They 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 160 km in 9/125 μm single mode fiber. The optical output can be disabled by a TTL logic high-level input of Tx Disable, and the system also can disable the module via I2C. Tx Fault is provided to indicate that degradation of the laser. Loss of signal (LOS) output is provided to indicate the loss of an input optical signal of receiver or the link status with partner. The system can also get the LOS (or Link)/Disable/Fault information via I2C register access.
· Operating Data Rate up to 1.25Gbps
· 1550nm DFB Laser Transmitter
· 160km with 9/125 µm SMF
· Single 3.3V Power Supply
· Hot-Pluggable SFP Footprint Duplex LC Connector Interface
· Class 1 FDA and IEC60825-1 Laser Safety Compliant
· Operating Temperature: Standard: 0°C to +70°C, Industrial: -40°C to +85°C
· Applications: Gigabit Ethernet Switches and Routers, Fiber Channel Switch Infrastructure, STM-4 and other optical links
· Compliant with MSA SFP Specification
· Compliant with SFF-8472
· ROHS 2.0 compatible
Absolute Maximum Ratings
Parameter | Symbol | Min. | Max. | Unit |
Storage Temperature | TS | -40 | +85 | °C |
Maximum Supply Voltage | VCC | -0.5 | 3.6 | V |
Operating Relative Humidity | RH | 95 | % |
Notes:
1. Exceeding any one of these values may destroy the device immediately.
Recommended Operating Conditions
Parameter | Symbol | Min. | Typ. | Max. | Unit | Note |
Operating Case Temperature | Tc | 0 | +70 | °C | SFP-AG-LP-51-160 | |
-40 | +85 | °C | SFP-AGLP-51-160A | |||
Power Supply Voltage | VCC | 3.15 | 3.3 | 3.45 | V | |
Power Supply Current | ICC | 300 | mA | |||
Data Rate | GBE | 1.25 | Gbps | |||
FC | 1.063 |
Electrical Characteristics
Parameter | Symbol | Min. | Typ. | Max. | Unit | Note | ||
Transmitter | ||||||||
LVPECL Inputs (Differential) | Vin | 500 | 2400 | mVpp | AC Coupled Inputs*(Note1) | |||
Input Impedance (Differential) | Zin | 85 | 100 | 115 | ohms | Rin > 100 kohms @ DC | ||
TX_Dis | Disable | 2 | Vcc | V | ||||
Enable | 0 | 0.8 | ||||||
TX_FAULT | Fault | 2 | Vcc+0.3 | V
| ||||
Normal | 0 | 0.5 | ||||||
Receiver | ||||||||
LVPECL Outputs (Differential) | Vout | 370 | 2000 | mVpp | AC Coupled Outputs*(Note1) | |||
Output Impedance (Differential) | Zout | 85 | 100 | 115 | ohms | |||
TX_Disable Assert Time | t_off | 10 | us | |||||
RX_LOS | LOS | 2 | Vcc+0.3 | V | ||||
Normal | 0 | 0.8 | ||||||
MOD_DEF (0.2) | VoH | 2.5 | V | With Serial ID | ||||
VoL | 0 | 0.5 |
Notes:
1. LVPECL logic, internally AC coupled.
Optical Characteristics
Parameter | Symbol | Min. | Typ. | Max. | Unit |
9µm Core Diameter SMF | L | 160 | km | ||
Data Rate | 1.063/1.25 | Gbps | |||
Transmitter | |||||
Center Wavelength | λC | 1500 | 1550 | 1580 | nm |
Spectral Width (-20dB) | ∆λ | 1 | nm | ||
Side Mode Suppression Ratio | SMSR | 30 | dB | ||
Average Output Power* (Note1) | Pout | +3 | +7 | dBm | |
Extinction Ratio*(Note2) | ER | 9 | dB | ||
Rise/Fall Time (20% to 80%) | tr/tf | 0.26 | ns | ||
Total Jitter*(Note2) | TJ | 0.43 | UI | ||
Output Optical Eye | Compliant with IEEE 802.3 | ||||
Pout@TX Disable Asserted | Pout | -45 | dBm | ||
Receiver | |||||
Center Wavelength | λC | 1260 | 1600 | nm | |
Receiver Sensitivity*(Note3) | Pmin | -34 | dBm | ||
Receiver Overload | Pmax | -10 | dBm | ||
LOS De-Assert | LOSD | -38 | dBm | ||
LOS Assert | LOSA | -45 | dBm | ||
LOS Hysteresis | 0.5 | dB |
Notes:
1. Output power is measured by coupling into a 9/125 mm multi-mode fiber.
2. Filtered, measured with a PRBS 27-1 test pattern @1250Mbps.
3. Minimum average optical power is measured at BER less than 1E-12, with 2^7-1 PRBS and ER=9 dB
Digital Diagnostic Functions
Parameter | Range | Unit | Accuracy | Calibration |
Temperature | -40 to 85 | °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 | 3 to 7 | dBm | ±3dB | Internal / External |
RX Power | -34 to -10 | dBm | ±3dB | Internal / External |
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