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AD9988 Recommended for New Designs
The AD9988 is a highly integrated device with four 16-bit, 12 GSPS maximum sample rate, RF digital-to-analog converter (DAC) cores, and four 12-bit, 4...
Datasheet
AD9988 on Analog.com

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AD9988 EVM result



		

			

									
					    Jeremy.Kuo
					
							

			
				
									
											
			
			
				
    
			
			
			    	
			                    
                
				                on Jan 7, 2022 
				
			
			
		
    

				
		
    
		    		    
		    
		    	
			
    Hi folks,
    

    

    I find the specification and relevant document, it doesn't mention about EVM measurement .
    

    Could you help to provide the EVM measurement result , the condition of measurement is 1024QAM@7.2GHz. 
    

    

    Thanks. 
    
								
    

				
				
		
    
			
						
									
									
						
						
			
			
			
			
		
    

        
        

					
    
			
    


    


	















    
	
    
	
    
					



			


				
	









	
      
	

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      •  Analog Employees  
      
            
			                            
                        
                on Jan 8, 2022 2:18 AM
            
            
					
      
	
      

		
		
      
					
      Hi, please see the prelim results collected on single AD9082 board. AD9988/AD9082 are same product family. please refer to the Datasheet/UG to understand the difference. 
      

       
      

      


      

test item
connections
results

      

      
1
ADC- DAC Loopback EVM


       
      

      ►Single Channel Loopback EVM
      

        

      • Using IEEE 802.11ax waveform with 80MHz instantaneous BW, QAM 1024 symbols
        • 

      • Wide capture bandwidth enables waveform frequency shifting to avoid spurs
        • 

      

      Complex mode EVM is expected to be 3dB lower than the single channel EVM
      
      		
 

      

      
2


      ADC-DAC Loopback (5G NR 30kHz-100MHz)
      

      Waveform:
      

      5G NR 30kHz 100MHz Wide
      
      		
 


       
      

       
      
      		

      

      
3


      ADC-DAC Loopback (IEEE 802.11BE)
      

      Device Settings
      

      DAC sampling rate = 12GSPS
      

      ADC sampling rate = 6GSPS
      

      Waveform Settings
      

      IEEE 802.11BE, 320MHz, 4096 QAM
      

      Test configuration
      

      DAC/ADC loopback
      
      		
 


       
      

       
      
      		

      

      
4


      Direct DAC RF in 1st and 2nd Nyquist
      

      

      DAC 11796.48Msps & 9830.4Msps
      

      AD9082-FMCB-EBZ 4D2A
      

      Data Rate = 491.52Msps,
      

      Vector: 80MHz IEEE 802.11AX 1024 QAM
      
      		
 
 

      

      
5


      AD9082/AD9213 Direct RF in 2nd Nyquist
      

      Vector: 80MHz IEEE 802.11AX 1024 QAM
      
      		
 
 

      

      



      
      		



      
      

      
			
      

		
		
		
		
	
      
	
      
		
      
			
		
      
	
      
	
      
		
						
						
				
						
				
				
		
		
      
			
		
      
	
      

      

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