Sfp 2.5gbps Stm-16 10km 1310nm
Sfp 2.5gbps Stm-16 10km 1310nm
R$239,00
Features
- Internal Calibration or External Calibration
- Upto 2.488Gb/s bi-directional data links
- 1310nm DFB laser and PIN photodetector for 20km transmission
- Compliant with SFP MSA and SFF-8472 with duplex LC receptacle
- Digital Diagnostic Monitoring:
- Compatible with RoHS
- 3.3V single power supply
- Operating case temperature:
- Standard : 0 to 70°C Extended : -20 to 85°C
Applications
- SDH STM-16 and SONET OC-48 system
- 2X Fiber Channel
- Switch to Switch interface
- Switched back plane applications
- Router/Server interface
- Other optical transmission systems
Description
The SFP transceivers are high performance, cost effective modules supporting dual data-rate of 2.488Gbps and 20km transmission distance with SMF.
The transceiver consist soft three sections: a DFB laser transmitter, a PIN photodiode integrated with a trans-impedance preamplifier (TIA) and MCU control unit. All modules satisfy class I laser safety requirements.
The transceivers are compatible with SFP Multi-Source Agreement (MSA) and SFF-8472. For further information, please referto SFP MSA.
Absolute Maximum Ratings
Table 1 – Absolute Maximum Ratings
Parameter |
Symbol |
Min |
Max |
Unit |
Supply Voltage | Vcc | -0.5 | 4.5 | V |
Storage Temperature | Ts | -40 | 85 | °C |
Operating Humidity | – | 5 | 85 | % |
Recommended Operating Conditions
Table 2 – Recommended Operating Conditions
Parameter | Symbol | Min | Typical | Max | Unit | |
Operating Case Temperature | Standard | Tc | 0 | 70 | °C | |
Extended | -20 | 85 | °C | |||
Power Supply Voltage | Vcc | 3.13 | 3.3 | 3.47 | V | |
Power Supply Current | Icc | 300 | mA | |||
Data Rate | 2.488 | Gbps |
Opticaland Electrical Characteristics
(DFB and PIN, 1310nm, 20km Reach)
Table 3 – Opticaland Electrical Characteristics
Parameter | Symbol | Min | Typical | Max | Unit | Notes | ||
Transmitter | ||||||||
Centre Wavelength | λc | 1260 | 1310 | 1360 | nm | |||
Spectral Width (-20dB) | σ | 1 | nm | |||||
Side Mode Suppression Ratio | SMSR | 30 | dB | |||||
Average Output Power | Pout | -5 | 0 | dBm | 1 | |||
Extinction Ratio | ER | 9 | dB | |||||
Optical Rise/Fall Time (20%~80%) | tr/tf | 0.16 | ns | |||||
Data Input Swing Differential | VIN | 400 | 1800 | mV | 2 | |||
Input Differential Impedance | ZIN | 90 | 100 | 110 | Ω | |||
TX Disable | Disable | 2.0 | Vcc | V | ||||
Enable | 0 | 0.8 | V | |||||
TX Fault | Fault | 2.0 | Vcc | V | ||||
Normal | 0 | 0.8 | V | |||||
Receiver | ||||||||
Centre Wavelength | λc | 1260 | 1580 | nm | ||||
Receiver Sensitivity | -18 | dBm | 3 | |||||
Receiver Overload | -3 | dBm | 3 | |||||
LOS De-Assert | LOSD | -20 | dBm | |||||
LOS Assert | LOSA | -30 | dBm | |||||
LOS Hysteresis | 1 | 4 | dB | |||||
Data Output Swing Differential | Vout | 370 | 1800 | mV | 4 | |||
LOS | High | 2.0 | Vcc | V | ||||
Low | 0.8 | V | ||||||
Notes:
1. The optical power is launched into SMF.
2. PECL input, internally AC-coupled and terminated.
3. Measured with a PRBS 223-1 test pattern @2488Mbps, BER ≤1×10-12.
4. Internally AC-coupled.
Timing and Electrical
Table 4 – Timing and Electrical
Parameter | Symbol | Min | Typical | Max | Unit |
Tx Disable Negate Time | t_on | 1 | ms | ||
Tx Disable Assert Time | t_off | 10 | µs | ||
Time To Initialize, including Reset of Tx Fault | t_init | 300 | ms | ||
Tx Fault Assert Time | t_fault | 100 | µs | ||
Tx Disable To Reset | t_reset | 10 | µs | ||
LOS Assert Time | t_loss_on | 100 | µs | ||
LOS De-assert Time | t_loss_off | 100 | µs | ||
Serial ID Clock Rate | f_serial_clock | 400 | KHz | ||
MOD_DEF (0:2)-High | VH | 2 | Vcc | V | |
MOD_DEF (0:2)-Low | VL | 0.8 | V |
Diagnostics
Table 5 – Diagnostics Specification
Parameter | Range | Unit | Accuracy | Calibration |
Temperature | 0 to 70 | °C | ±3°C | Internal / External |
-20 to 85 | ||||
Voltage | 3.0 to 3.6 | V | ±3% | Internal / External |
Bias Current | 0 to 100 | mA | ±10% | Internal / External |
TX Power | -5 to 0 | dBm | ±3dB | Internal / External |
RX Power | -23 to -3 | dBm | ±3dB | Internal / External |
Digital Diagnostic Memory Map
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.
The digital diagnostic memory map specific data field defines as following.
Pin Definitions
Pin Diagram
Pin Descriptions
Pin | SignalName | Description | Plug Seq. | Notes |
1 | VEET | TransmitterGround | 1 | |
2 | TX FAULT | TransmitterFaultIndication | 3 | Note 1 |
3 | TX DISABLE | TransmitterDisable | 3 | Note 2 |
4 | MOD_DEF(2) | SDA Serial Data Signal | 3 | Note 3 |
5 | MOD_DEF(1) | SCL Serial ClockSignal | 3 | Note 3 |
6 | MOD_DEF(0) | TTL Low | 3 | Note 3 |
7 | Rate Select | NotConnected | 3 | |
8 | LOS | LossofSignal | 3 | Note 4 |
9 | VEER | Receiverground | 1 | |
10 | VEER | Receiverground | 1 | |
11 | VEER | Receiverground | 1 | |
12 | RD- | Inv. Received Data Out | 3 | Note 5 |
13 | RD | Received Data Out | 3 | Note 5 |
14 | VEER | Receiverground | 1 | |
15 | VCCR | Receiver Power Supply | 2 | |
16 | VCCT | Transmitter Power Supply | 2 | |
17 | VEET | TransmitterGround | 1 | |
18 | TD | Transmit Data In | 3 | Note 6 |
19 | TD- | Inv. Transmit Data In | 3 | Note 6 |
20 | VEET | TransmitterGround | 1 |
Notes:
Plug Seq.: Pin engagement sequence during hot plugging.
1) TX Faultisan open collector output, which should be pulled up with a 4.7k~10kΩ resistor on the host board to a voltage between 2.0V and Vcc 0.3V. Logic 0 indicates normal operation; Logic 1 indicates a laser fault of some kind. In the low state, the output will be pulled to less than 0.8V.
2) TX Disable is an input that is used to shut down the transmitter optical output. It is pull e dup within the module with a 4.7k~10kΩ resistor. Its states are:
Low (0 to 0.8V): Transmitteron
(>0.8V, < 2.0V): Undefined
High (2.0 to 3.465V): TransmitterDisabled
Open: TransmitterDisabled
3) Mod-Def 0,1,2. These are the module definition pins. They should be pulled up with a 4.7k~10kΩ resistor onthe host board. The pull-up voltage shall be Vcc Tor VccR.
Mod-Def 0 is ground edgy the module to indicate that the module is present
Mod-Def 1 is the clock line of two wire serial interface for serial ID
Mod-Def 2 is the data line of two wire serial interface for serial ID
4) LOS is an open collector output, which should be pulled up with a 4.7k~10kΩ resistor. Pull up voltage between 2.0V and Vcc 0.3V. Logic 1 indicates loss of signal; Logic 0 indicates normal operation. In the low state, the output will be pulled to less than 0.8V.
5) RD-/ : These are the differential receiver outputs. They are internally AC-coupled 100 differential line swhich should be terminated with 100Ω (differential) attheuser SERDES.
6) TD-/ : These are the differential transmitter in puts. They are internally AC-coupled, differential line swith 100Ω differentialterminationinsidethe module.
Recommended Interface Circuit
Mechanical Dimensions
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