Alpha Bridge ASFP-1G-eLX5531B

Features

  1. Dual data-rate of 25Gbps/1.063Gbps operation
  2. 3V single power supply
  3. 1550nm DFB laser and PIN photodetector for 20km transmission
  4. Compliant with SFP MSA and SFF-8472 with simplex LC receptacle
  5. Digital Diagnostic Monitoring:
  6. Internal Calibration or External Calibration
  7. Compatible with SONET OC-24-LR-1
  8. Compatible with RoHS
  9. Operating Case Temperature: 
  10. Standard: 0°C ~70°C
  11. Industrial : -40°C ~85°C

Applications

  1. Gigabit Ethernet
  2. Fiber Channel
  3. Switch to Switch interface
  4. Switched backplane applications
  5. Router/Server interface
  6. Other Optical transmission systems

Description

  • The SFP-BIDI transceivers are high-performance, cost-effective modules supporting dual data rate of 1.25Gbps/1.0625Gbps and 20km transmission distance with SMF.
  • The transceiver consists of 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 refer to SFP MSA.

Absolute Maximum Ratings

Parameters Symbol Min. Max. Units
Supply Voltage VCC -0.5 4.5 V
Storage Temperature Tc -40 85 °C
Operating Humidity   5 85 %

Recommended Operating Conditions

Parameter Symbol Min. Typ. Max. Units
Power Supply Voltage  VCC 3.13 3.3 3.47 V
Power Supply Current  Icc     300 mA
Operating Case Temperature-Standard TC 0   70 °C
Operating Case Temperature-Industrial  Tc -40   85 °C
Date Rate - Gigabit Ethernet     1.25    
Date Rate – Fiber Channel     1.063   Gbps

Digital Diagnostic Functions

Parameter/Range Symbol Accuracy Unit Notes
Temperature/ 0 to 70 DMI_Temp ± 3°C oC  
Temperature/ -40 to 85 DMI_Temp ± 3°C oC  
Voltage /3.0 to 3.6 DMI_VCC ±3% V  
Bias Current Monitor/0 to 100 DMI_Ibias ± 10% mA  
TX Power /-9 to-3 DMI_TX ± 3 dB dBm  
RX Power/-23 to -3 DMI_RX ± 3 dB dBm  

Optical Characteristics

Parameter Symbol Min. Typ. Max. Units Note
Transmitter
Center Wavelength λC 1530 1550 1570 nm  
Spectral Width (-20dB) ∆λ     1 nm  
Side Mode Suppression Ratio SMSR 30     dB  
Average Output Power Pout -9   -3 dBm 1
Extinction Ratio ER 9     dB  
Optical Rise/Fall Time (20%~80%) tr/tf     0.26 ns  
Receiver 
Center Wavelength λC 1260   1360 nm  
Receiver Sensitivity     -23 dBm 2
Receiver Overload -3     dBm 2
LOS Assert LOSA -35     dBm  
LOS De-assert LOSD     -24 dBm  
LOS Hysteresis LOSH 1   4 dB  

Electrical Characteristics

Parameter Symbol Min. Typ. Max. Units Note
Transmitter
Input Differential Impedance ZIN 90 100 110 Ω  
Data Input Swing Differential VIN 400   1800 mV 1
Transmit Disable -Disable VD 2   Vcc V  
Transmit Disable - Enable VEN 0   0.8 V  
Transmit Fault-Fault 2.0   Vcc V  
Transmit Fault- Normal   0   0.8 V  
Receiver
Data Output Swing Differential VOUT 400   1800 mV 2
LOS High  2   VCC  V  
Low     0.8 V  

Pin Descriptions

Pin Symbol Function/Description Note
1 VEET Transmitter Ground  
2 TX FAULT Transmitter Fault Indication 1
3 TX DISABLE Transmitter Disable 2
4 MOD_DEF(2) SDA Serial Data Signal 3
5 MOD_DEF(1) SCL Serial Clock Signal 3
6 MOD_DEF(0) TTL Low 3
7 Rate Select Not Connected
8 LOS Loss of Signal 4
9 VEER Receiver ground
10 VEER Receiver ground
11 VEER Receiver ground
12 RD- Inv. Received Data Out 5
13 RD+ Received Data Out 5
14 VEER Receiver ground
15 VCCR Receiver Power Supply
16 VCCT Transmitter Power Supply
17 VEET Transmitter Ground
18 TD+ Transmit Data In 6
19 TD- Inv. Transmit Data In 6
20 VEET Transmitter Ground

Ordering Information

Model Number Part Number Reach TX/RX Voltage Temperature
ASFP-1G-eLX5531B OP6C-W20-B5-CMF 20 km 1550/1310 3.3V 0°C to 70 °C
ASFP-1G- eLX5531B-I OP6C-W20-B5-IMF 20km 1550/1310 3.3V -40°C to 85 °C
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