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LTC5510 Production
The LTC5510 is a high linearity mixer optimized for applications requiring very wide input bandwidth, low distortion, and low LO leakage. The chip includes...
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LTC5510 on Analog.com

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1 GHz bandwidth in L-Band (1-2 GHz) and S-Band (2-4 GHz)

		
	
				

			

									
					    FWT
					
							

            
            			
				
									
											
			
			
				
			
			
			    	
			                    
                
				                on Aug 5, 2026 
				
			
			
		

		
		                     
				
        		

		    
		    		    

		      		            		        
Category: Datasheet/Specs

    		        		            		    
Product Number:  LTC5510  

    		        		    		    

		    		    
		    			

			    
Hi, I am looking for a mixer that can up or downconvert a 1 GHz wide signal in the 250 MHz to 6 GHz frequency range. With a proper balun and/or other matching external to LTC5510, can this be achieved? I am guessing in most cases the balun selects the frequency range and that the mixer itself doesn't have any bandwidth limitation. Is that correct? If not, what kind of fractional bandwidth can this part achieve if external matching allows anything between 1 MHz to 6 GHz to pass through? Thanks.

			

			
									
		                             
                        

    

                                            
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    •  Analog Employees  
    
            
						
                            
            
            				
            
                on Aug 11, 2026 4:37 PM
            
            
						
			            		
    
		
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    Hello,
     
    Apologies for the delay in response, I am still in the process of creating a proper test configuration for this mixer. As I am attempting to apply a 1 GHz wide signal onto this component, I'm first trying to ensure that the instrumentation I have available in our lab can actually output that range withing the frequency spectrum of interest. One of our signal generators is limited in its top end frequency range at around 4 GHz, as well as in bandwidth, around 800 MHz, but I am very much still exploring options in order to hopefully build a more accurate source and test configuration for this mixer to obtain representative data.
     
    I'll be sure to update you if there are any developments along the way.
     
    Best regards,
    
			
    

		
			
	      

		
		
	
    
	
    
		
    
			
		
    
	
    
	
    
		
						
						
				
				
				
				
		
		
    
			
		
    
	
    

    

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                on Aug 11, 2026 5:08 PM
            
            
						
			            		
    
		
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    Hi, you don't need a 1 GHz wide signal for this measurement. You can fix the LO frequency and sweep the input frequency over a 1 GHz bandwidth with a CW tone, stepping in 100MHz steps as shown in the Table below. The main parameters of interest are:
    

      

    1. Conversion gain vs input (or output) frequency.
      2. 

    2. Spur table (at 1.5 GHz input and 3 GHz output frequency). High side LO frequency will be 4.5 GHz
      3. 

    3. IN-OUT isolation
      4. 

    4. LO-OUT leakage
      5. 

    

    


    
IF Freq - IN
     [MHz]    		
LO Freq 
     [MHz]    		
RF Freq - OUT
     [MHz]    		
RF Pwr 
     [dBm]    		
Conv Loss 
     [dB]    		

    

    
1000
4500
3500
 
 

    

    
1100
4500
3400
 
 

    

    
1200
4500
3300
 
 

    

    
1300
4500
3200
 
 

    

    
1400
4500
3100
 
 

    

    
1500
4500
3000
 
 

    

    
1600
4500
2900
 
 

    

    
1700
4500
2800
 
 

    

    
1800
4500
2700
 
 

    

    
1900
4500
2600
 
 

    

    
2000
4500
2500
 
 

    
    

    

    Please let me know if you have any question. I think DC1983A is the most appropriate demo circuit for the above measurements. Please use a supply voltage of 5 V for this measurement.
    

    Thank you so much for your help.
    

    Best Regards,
    

    Noman
    
			
    

		
			
	      

		
		
	
    
	
    
		
    
			
		
    
	
    
	
    
		
						
						
				
				
				
				
		
		
    
			
		
    
	
    

    

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