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HMC6000 Obsolete
The HMC6000 devices are complete millimeter wave transmitters available in a chip (HMC6000) and an IC and low profile antenna integrated in a plastic 7...
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HMC6000 on Analog.com

HMC6001 Obsolete
The HMC6001 devices are complete millimeter wave receivers available in a superheterodyne chip (HMC6001) and an IC and low profile antenna integrated in...
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HMC6001 on Analog.com

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Question about GUI for HMC6000/6001 Eva. kit



		

			

									
					    AkiraO
					
							

			
				
									
											
			
			
				
    
			
			
			    	
			                    
                
				                on Sep 12, 2016 
				
			
			
		
    

				
		
    
		    		    
		    
		    	
			
    Hello,
    
 
    Our customer is using Evaluation Kit of HMC6000 and HMC6001, and he has some questions about the GUI.
    
 
    (1) Is "BB LF Corner" control on the GUI for HMC6001 corresponding to ROW3<4:5>? If yes, the GUI doesn't match to datasheet. Which is correct? If no, what function is "BB LF Corner" for?
    
 
    
 
    
 
    (2)Could you please advise me about a function of "VCO Amp Bias" on the GUI for HMC6000? Or which ROW is corresponding to "VCO Amp Bias"?  And the customer would like to adjust VCO for improving the phase noise. How should we do for improving the phase noise?
    
 
    (3)The customer has beed testing of this Eva. kit by MSC-10 (SC 16QAM). However the EVM was 13.413%. What should we check for improving the EVM?
    
 
    Best regards,
    
 
    Akira
    
									
			        
		
    

				
				
		
    
			
						
									
									
						
						
			
			
			
			
		
    

        
        

					
    
			
    


    


	
    
		
	
    















    
	
    
	
    
					



			








	
	
	
	



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      •  Analog Employees  
      
            
			                            
                        
                on Mar 14, 2017 5:54 PM
            
            
					
      
	
      

		
		
      
					
      Hello,
      
 
      The BB Lowpass Corner on the GUI controls the lowpass corner on the baseband amplifiers.  This is set by using ROW3<6:7>.
      
 
      The VCO has already been optimized for the best phase noise.  Changing the VCO BIAS AMP setting will only degrade the performance.  The replacement parts (HMC6300/6301) have an improved synthesizer that will support 64QAM.  The new devices also have a feature that allows for an external external LO for support up to 256QAM. 
      
 
      13.4% EVM is approximately 18dB SNDR.  Typically about 20dB SNDR is required for 16QAM but will vary depending on the modem.  There are A LOT of variables to this measurement:
      
 
      - Is the TX optimized
      
 
      - Is the RX carrier level within an acceptable range
      
 
      - Is the RX gain optimized
      
 
      - Is multipath involved
      
 
      Regards,
      
 
      Mark
      
			
      

		
			
	      

		
		
	
      
	
      
		
      
			
		
      
	
      
	
      
		
						
				
						
						
				
				
		
		
      
			
		
      
	
      

      

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    • 
	
      



	
			
		
	



      
	
      
		
      
							
					
      
		
      
			
													0
							
			
				
									
							        
			
			
			
      •  Analog Employees  
      
            
			                            
                        
                on Mar 14, 2017 5:54 PM
            
            
					
      
	
      

		
		
      
					
      Hello,
      
 
      The BB Lowpass Corner on the GUI controls the lowpass corner on the baseband amplifiers.  This is set by using ROW3<6:7>.
      
 
      The VCO has already been optimized for the best phase noise.  Changing the VCO BIAS AMP setting will only degrade the performance.  The replacement parts (HMC6300/6301) have an improved synthesizer that will support 64QAM.  The new devices also have a feature that allows for an external external LO for support up to 256QAM. 
      
 
      13.4% EVM is approximately 18dB SNDR.  Typically about 20dB SNDR is required for 16QAM but will vary depending on the modem.  There are A LOT of variables to this measurement:
      
 
      - Is the TX optimized
      
 
      - Is the RX carrier level within an acceptable range
      
 
      - Is the RX gain optimized
      
 
      - Is multipath involved
      
 
      Regards,
      
 
      Mark
      
			
      

		
			
	      

		
		
	
      
	
      
		
      
			
		
      
	
      
	
      
		
						
				
						
						
				
				
		
		
      
			
		
      
	
      

      

      • 


    


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