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ADN2882 Obsolete
The ADN2882 is a compact, high performance 3.3 V power supply SiGe transimpedance amplifier (TIA) optimized for small form factor 4.25 Gbps 1x/2x/4x Fibre...
ADN2882 on Analog.com

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ADN2882 eye figure shake issue

		
	
				

			

									
					    paul.wu
					
							

            
            			
				
									
											
			
			
				
    
			
			
			    	
			                    
                
				                on Jul 11, 2013 
				
			
			
		
    
		
		                     
				
        		
    
		    
		    		    
		    			
    
			    
    Hello
    
 
            I am measurements ADN2882 performance discovered some issue that input signal is 4GHz -5dBm to -8dBm then ADN2882 output eye figure will be shake ( two line) . Could you tell me how do solve this issue and why is causing this phenomenon , please? 
    
			
    
			
									
		                             
                        

    
    
                                            
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      •  Analog Employees  
      
            
						
                            
            
            				
            
                on Jul 11, 2013 7:22 PM
            
            
						
			            		
      
		
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      Hi Paul, 
      
 
      Thank you for your interest in ADI products. I hope you can answer some questions so we could get to the root of your problem. Can you clarify what you mean by the 4GHz input signal? What are you using to generate this signal? Also, are you using the evaluation board of the ADN2882 or have you built your own circuit? 
      
 
      Could you provide a scope shot of the eye diagram that you're seeing? It could indicate a lot about the setup problem.
      
 
      Thanks!
      
 
      Kris
      
			
      

		
			
	      

		
		
	
      
	
      
		
      
			
		
      
	
      
	
      
		
						
						
				
						
				
				
		
		
      
			
		
      
	
      

      

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      •  Analog Employees  
      
            
						
                            
            
            				
            
                on Jul 11, 2013 7:22 PM
            
            
						
			            		
      
		
										0
					
	
      

		
		
      
		
      
                                
                                                            
      
					
      Hi Paul, 
      
 
      Thank you for your interest in ADI products. I hope you can answer some questions so we could get to the root of your problem. Can you clarify what you mean by the 4GHz input signal? What are you using to generate this signal? Also, are you using the evaluation board of the ADN2882 or have you built your own circuit? 
      
 
      Could you provide a scope shot of the eye diagram that you're seeing? It could indicate a lot about the setup problem.
      
 
      Thanks!
      
 
      Kris
      
			
      

		
			
	      

		
		
	
      
	
      
		
      
			
		
      
	
      
	
      
		
						
						
				
						
				
				
		
		
      
			
		
      
	
      

      

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