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LTC5548 Production
The LTC5548 is a high performance, microwave double balanced passive mixer that can be used for frequency upconversion or downconversion. The device is...
Datasheet
LTC5548 on Analog.com

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LO Max Frequency

		
	
				

			

									
					    Commtact
					
							

            
            			
				
									
											
			
			
				
    
			
			
			    	
			                    
                
				                on Dec 21, 2024 
				
			
			
		
    
		
		                     
				
        		
    
		    
		    		    
    
		      		            		        
    Category: Datasheet/Specs
    
    		        		            		    
    Product Number:  LTC5548  
    
    		        		    		    
    
		    		    
		    			
    
			    
    Hi
    

    I would like to use this mixer as Upconverter from 1.3GHz to 11.5GHz
    Can I use the LO above RF , it means up to 12.8GHz? 
    any degradation with performances?
    

    (The LTC5548 datasheet limit the max LO frequency to 12GHz)
    Roni


    
			
    
			
									
		                             
                        

    
    
                                            
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                 LTC5548 Max LO Frequency
                
                                                    
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							FormerMember
					
      
		
      
		    
		    		    
			
				
									FormerMember
							        
			
			
			
    
            
						
                            
            
            				
            
                on Dec 23, 2024 12:39 PM
            
            
						
			            		
    
		
										+1
					
	
    

		
		
    
		
    
                                
                                                            
    
					
    The LTC5548's performance degradation at LO frequencies above12GHz is fairly gradual. Extrapolate the performance from these plots from the datasheet can give you an idea of the amount of degradation:
    

     
    
			
    

		
			
	      

		
		
	
    
	
    
		
    
			
		
    
	
    
	
    
		
						
						
						
				
				
				
		
		
    
			
		
    
	
    

    


	



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							FormerMember
					
      
		
      
		    
		    		    
			
				
									FormerMember
							        
			
			
			
    
            
						
                            
            
            				
            
                on Dec 23, 2024 12:39 PM
            
            
						
			            		
    
		
										+1
					
	
    

		
		
    
		
    
                                
                                                            
    
					
    The LTC5548's performance degradation at LO frequencies above12GHz is fairly gradual. Extrapolate the performance from these plots from the datasheet can give you an idea of the amount of degradation:
    

     
    
			
    

		
			
	      

		
		
	
    
	
    
		
    
			
		
    
	
    
	
    
		
						
						
						
				
				
				
		
		
    
			
		
    
	
    

    





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