Fiber Optic Module 50G ER QSFP28 40KM Transceiver Duplex LC Connector
 50G QSFP Transceiver Advantages
 ► Compliant with QSFP28 Standard
 ► Single 3.3V Supply Voltage
 ► Maximum power consumption 4.5W
 ► EML laser and APD Receiver
 ► QSFP28 MSA package with duplex LC connector
Transmitter Optical Specifications
|  			 Parameter  |  			 			 Symbol  |  			 			 Min.  |  			 			 Typical  |  			 			 Max.  |  			 			 Unit  |  			 			 Notes  |  		
|  			 Wavelength  |  			 			 λ  |  			 			 1304.5  |  			 			 1311  |  			 			 1317.5  |  			 			 nm  |  			 			 
  |  		
|  			 Side-mode suppression ratio  |  			 			 SMSR  |  			 			 30  |  			 			 
  |  			 			 
  |  			 			 dB  |  			 			 
  |  		
|  			 Average launch power  |  			 			 POUT  |  			 			 0.4  |  			 			 -  |  			 			 6.63  |  			 			 dBm  |  			 			 
  |  		
|  			 Average launch power of OFF transmitter  |  			 			 POUT_OFF  |  			 			 -  |  			 			 -  |  			 			 -15  |  			 			 dBm  |  			 			 
  |  		
|  			 Outer Optical Modulation Amplitude (OMAouter)  |  			 			 POUTL  |  			 			 3.4  |  			 			 -  |  			 			 7.4  |  			 			 dBm  |  			 			 
  |  		
|  			 Extinction ratio  |  			 			 ER  |  			 			 6  |  			 			 -  |  			 			 -  |  			 			 dB  |  			 			 
  |  		
|  			 Launch power in OMAouter minus TDECQ  |  			 			 OMA-TDECQ  |  			 			 2  |  			 			 -  |  			 			 -  |  			 			 dBm  |  			 			 
  |  		
|  			 Transmitter and dispersion eye closure for PAM4 (TDECQ)  |  			 			 TDECQ  |  			 			 -  |  			 			 -  |  			 			 3.2  |  			 			 dB  |  			 			 Note  |  		
|  			 Transmitter reflectance  |  			 			 
  |  			 			 -  |  			 			 -  |  			 			 -26  |  			 			 dB  |  			
Receiver Optical Specifications
|  			 Parameter  |  			 			 Symbol  |  			 			 Min.  |  			 			 Typical  |  			 			 Max.  |  			 			 Unit  |  			 			 Notes  |  		
|  			 Wavelength  |  			 			 λ  |  			 			 1304.5  |  			 			 1311  |  			 			 1317.5  |  			 			 nm  |  			 			 
  |  		
|  			 Receiver sensitivity (OMAouter)  |  			 			 
  |  			 			 
  |  			 			 
  |  			 			 max(−15.1, SECQ − 16.5)  |  			 			 dBm  |  			 			 Note  |  		
|  			 Damage Threshold  |  			 			 P_damage  |  			 			 -2.37  |  			 			 -  |  			 			 -  |  			 			 dBm  |  			 			 
  |  		
|  			 Overload  |  			 			 
  |  			 			 -3.37  |  			 			 -  |  			 			 -  |  			 			 dBm  |  			 			 
  |  		
|  			 Average Receive Power  |  			 			 -  |  			 			 -17.6  |  			 			 -  |  			 			 -3.37  |  			 			 dBm  |  			 			 
  |  		
|  			 Receive power (OMAouter)  |  			 			 OMA  |  			 			 -  |  			 			 -  |  			 			 -2.6  |  			 			 dBm  |  			 			 
  |  		
|  			 Receiver Reflectance  |  			 			 RXR  |  			 			 -  |  			 			 -  |  			 			 -26  |  			 			 dB  |  			 			 
  |  		
|  			 LOS assert  |  			 			 LOSA  |  			 			 -30  |  			 			 
  |  			 			 
  |  			 			 dBm  |  			 			 
  |  		
|  			 LOS de-assert  |  			 			 LOSD  |  			 			 
  |  			 			 
  |  			 			 -20  |  			 			 dBm  |  			 			 
  |  		
|  			 LOS hysteresis  |  			 			 LOSH  |  			 			 0.5  |  			 			 
  |  			 			 
  |  			 			 dB  |  			
QSFP+ Module Pad Layout


Ordering Information
|  			 Part Number  |  			 			 Application  |  			 			 Data Rate  |  			 			 Laser Source  |  			 			 Fiber Type  |  		
|  			 
 LNK-SFP50G-ER 
  |  			 			 
 50GBASE-ER 
  |  			 			 
 53.125 Gb/s 
  |  			 			 
 EML Laser 
  |  			 			 SMF  |