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HMC8100 Recommended for New Designs
The HMC8100LP6JE is a highly integrated IF receiver chip that converts radio frequency (RF) input signals ranging from 800 MHz to 4000 MHz down to a single...
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HMC8100 on Analog.com

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HMC8100 Receiver IIP3



		

			

									
					    Maria
					
							

			
				
									
											
			
			
				
  •  Analog Employees  

			
			
			    	
			                    
                
				                on Nov 30, 2016 
				
			
			
		


				
		

		    		    
		    
		    	
			
In the datasheet, IM3 (dBc) graphs are provided against RF input power (dBm) for internal AGC mode. My questions are:

 
1) IM3 unit is dBc in datasheet. Is this relative to input carrier or output carrier?

 
2) I actually want to deduce IIP3 or OIP3 for the IC in internal AGC mode. KIndly help me out

									
			        
		


				
				
		

			
						
									
									
						
						
			
			
			
			
		


        
        

					

			






	

		
	

















	

	

					



			








	
	
	
	



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    •  Analog Employees  
    
            
			                            
                        
                on Mar 14, 2017 6:28 PM
            
            
					
    
	
    

		
		
    
					
    Hello,
    
 
    The IM3 is dBc with reference to the IF output tones.  The AGC is set to keep the IF output fixed at -9 dBm per tone.  The input power is swept in 5 dB steps (refer to x-axis) and the IM3 is measured at IF output.  The RF input power represents the combined power of the 2-tones.  You can use -9 dBm per tone at IF output to calculate the IP3.
    
 
    Regards,
    
 
    Mark
    
			
    

		
			
	      

		
		
	
    
	
    
		
    
			
		
    
	
    
	
    
		
						
				
						
						
				
				
		
		
    
			
		
    
	
    

    

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													0
							
			
				
									
							        
			
			
			
    •  Analog Employees  
    
            
			                            
                        
                on Mar 14, 2017 6:28 PM
            
            
					
    
	
    

		
		
    
					
    Hello,
    
 
    The IM3 is dBc with reference to the IF output tones.  The AGC is set to keep the IF output fixed at -9 dBm per tone.  The input power is swept in 5 dB steps (refer to x-axis) and the IM3 is measured at IF output.  The RF input power represents the combined power of the 2-tones.  You can use -9 dBm per tone at IF output to calculate the IP3.
    
 
    Regards,
    
 
    Mark
    
			
    

		
			
	      

		
		
	
    
	
    
		
    
			
		
    
	
    
	
    
		
						
				
						
						
				
				
		
		
    
			
		
    
	
    

    

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