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ADF4382A Recommended for New Designs
The ADF4382A is a high performance, ultralow jitter, fractional-N phased-locked loop (PLL) with an integrated voltage controlled oscillator (VCO) ideally...
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ADF4382A on Analog.com

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ADF4382A RF output power in divide-by-2 and divide-by-4 modes

		
	
				

			

									
					    SC996
					
							

            
            			
				
									
											
			
			
				
			
			
			    	
			                    
                
				                on May 5, 2026 
				
			
			
		

		
		                    	    

        	    
Thread Summary

                The user inquired about RF output power data for the ADF4382A in the divide-by-2 (5.75GHz-10.5GHz) and divide-by-4 (2.875GHz-5.25GHz) ranges, and process variation (min/max power). The final answer provided a plot showing RF output power from 5 to 21 GHz, noting that operation is not guaranteed below 2.875 GHz, between 5.25-5.75 GHz, 10.5-11.5 GHz, and above 21 GHz. The plot aligns with the datasheet's typical output power data and includes performance over temperature.
                                    

                    

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Product Number:  ADF4382A 

    		        		    		    

		    		    
		    			

			    
Hello,


The ADF4382A datasheet only specifies RF output power in the fundamental output frequency range of 11.5GHz to 21GHz (figure 24). Do you have any data on the RF output power between 5.75GHz-10.5GHz (divide-by-2 range) and 2.875GHz-5.25GHz (divide-by-4 range)?


The datasheet also only specifies typical output power. Do you have any data on likely process variation (i.e. minimum and maximum power)?


Thank you.


 



			

			
									
		                             
                        

    

                                            
                 Phase-Locked Loop (PLL) Synthesizers
                
                                                    
                 hardware
                
                                                    
                 ADF4382
                
                                                    
                 ADF4382A
                
                                                    
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    •  Analog Employees  
    
            
						
                            
            
            				
            
                on May 8, 2026 3:03 PM
            
            
						
			            		
    
		
										+1
					
	
    

		
		
    
		
    
                                
                                                            
    
					
    

    A few more comments. The data was taken at 1 GHz increments. It's important to note that operation is not guaranteed at the following frequencies
    

      

    1. 

      below 2.875 GHz
      

      2. 

    2. 

      between 5.25 and 5.75 GHz.
      

      3. 

    3. 

      between 10.5 and 11.5 GHz
      

      4. 

    4. 

      above 21 GHz. 
       
      

      I also received a plot from a colleague that was taken on a different setup during device characterization. This goes from 5 to 21 GHz and includes performance over temperature. It aligns fairly well with the other plot. And while there are no gaps in the frequency range, the same statements above about guaranteed frequency range, apply.  - Eamon
      

       
      

         
      

      5. 

    

    
			
    

		
			
	      

		
		
	
    
	
    
		
    
			
		
    
	
    
	
    
		
						
						
						
				
				
				
		
		
    
			
		
    
	
    

    

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    •  Analog Employees  
    
            
						
                            
            
            				
            
                on May 8, 2026 3:03 PM
            
            
						
			            		
    
		
										+1
					
	
    

		
		
    
		
    
                                
                                                            
    
					
    

    A few more comments. The data was taken at 1 GHz increments. It's important to note that operation is not guaranteed at the following frequencies
    

      

    1. 

      below 2.875 GHz
      

      2. 

    2. 

      between 5.25 and 5.75 GHz.
      

      3. 

    3. 

      between 10.5 and 11.5 GHz
      

      4. 

    4. 

      above 21 GHz. 
       
      

      I also received a plot from a colleague that was taken on a different setup during device characterization. This goes from 5 to 21 GHz and includes performance over temperature. It aligns fairly well with the other plot. And while there are no gaps in the frequency range, the same statements above about guaranteed frequency range, apply.  - Eamon
      

       
      

         
      

      5. 

    

    
			
    

		
			
	      

		
		
	
    
	
    
		
    
			
		
    
	
    
	
    
		
						
						
						
				
				
				
		
		
    
			
		
    
	
    

    

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