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HMC908 Obsolete
The HMC908LC5 is a compact GaAs MCM I/Q downconverter in a leadless RoHS compliant SMT ceramic package. This device provides a small signal conversion...
Datasheet
HMC908 on Analog.com

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HMC908 EVB_Noise Floor



		

			

									
					    Kazu
					
							

			
				
									
											
			
			
				
    
			
			
			    	
			                    
                
				                on Nov 9, 2015 
				
			
			
		
    

				
		
    
		    		    
		    
		    	
			
    Hi Everyone,
    
 
    I have a problem with HMC908LC5 Evaluation Board. The noise floor value on the board
    
 
    suddenly increases from Pin=-30dBm as attached. Is it normal performance? I need to bring it
    
 
    down to -140 or -130 dBm. Do you know any method of improving this?
    
 
    Tawaraya
    
									
			        
		
    

				
							QuestionaboutHMC908NF.pdf
							
        

    
    Tags: 
                                            
                 I/Q Downconverters/Receivers
                
                                                    
                 RF Mixers
                
                                                    
                 HMC908
                
                                
            
    
    
    

		
    
			
						
									
									
						
						
			
			
			
			
		
    

        
        

					
    
			
    


    
















    
	
    
	
    
					



			








	
	
	
	



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                on Nov 19, 2015 7:29 AM
            
            
					
        
	
        

		
		
        
					
        Hi Taz,
        
 
        Thank you for the reply. Yes, this is a new design and we need alternative part.
        
 
        I found HMC1113 in your wabsite but its P1dB value (-7 dBm) did not meet our request (-4~-5 dBm at least)
        
 
        Also we need the reason for the increase on the noise floor of HMC908.
        
 
        Thanks,
        
 
        Kazumasa
        
			
        

		
			
	      

		
		
	
        
	
        
		
        
			
		
        
	
        
	
        
		
						
				
						
						
				
				
		
		
        
			
		
        
	
        

        

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													0
							
			
				
									
							        
			
			
			
          
            
						
                            
            
            				
            
                on Nov 19, 2015 7:29 AM
            
            
					
          
	
          

		
		
          
					
          Hi Taz,
          
 
          Thank you for the reply. Yes, this is a new design and we need alternative part.
          
 
          I found HMC1113 in your wabsite but its P1dB value (-7 dBm) did not meet our request (-4~-5 dBm at least)
          
 
          Also we need the reason for the increase on the noise floor of HMC908.
          
 
          Thanks,
          
 
          Kazumasa
          
			
          

		
			
	      

		
		
	
          
	
          
		
          
			
		
          
	
          
	
          
		
						
				
						
						
				
				
		
		
          
			
		
          
	
          

          

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