SLA Information

SLA Status Assignee Support Status
SLA Closed.
Met after 13 hours		 Open
 
Activating this link will open 2 new browser tabs.

Products Mentioned

HMC742A Recommended for New Designs
The HMC742A is a digitally controlled variable gain amplifier which operates from 70 MHz to 4 GHz, and can be programmed to provide from -19.5 dB attenuation...
Datasheet
HMC742A on Analog.com

Thread Details

  • State Verified Answer
  • +1 person also asked this people also asked this
  • Replies 3 replies
  • Subscribers 69 subscribers
  • Views 245 views
  • Users 0 members are here
 
Related Content

        

            Post
             Go back to editing
        

    

    


    

    









		


















	
	
			
	
			
		
	
	
		

	    
	    
	    		
inductor value on AMPOUT pin

		
	
				

			

									
					    MRicci708
					
							

            
            			
				
									
											
			
			
				
			
			
			    	
			                    
                
				                on Jul 27, 2026 
				
			
			
		

		
		                    	    

        	    
Thread Summary

                The user inquired about a suitable 470 nH inductor for the AMPOUT pin (pin 29) of the HMC742A in a 500 MHz - 4 GHz project. The recommended part is the 0603LS-561XJLB from Coilcraft, as used on the HMC742A evaluation board.
                        	    

                
                     AI Generated Content
                
    	    

             
				
        		

		    
		    		    

		      		            		        
Category: Hardware

    		        		            		    
Product Number:  HMC742A  

    		        		    		    

		    		    
		    			

			    
Hi team,


i'm using the HMC742A for a new project in the frequency range 500 MHz - 4 GHz.


In the datasheet there is an inducotor on AMPOUT pin (pin 29).


However, the datasheet does not specify a recommended part number or package for the 470 nH inductor. Could you please recommend a suitable part number that I can use?


Thank you in advance,


Matteo Ricci

			

			
									
		                                 
Thread Notes  

                

        
                                        
                        

    

                                            
                 amplifiers
                
                                                    
                 hardware
                
                                                    
                 hmc742a
                
                                                    
                 Variable Gain Amplifiers (VGA)
                
                                
            

    
    
		


				
				        
        		

			
						
									
												
			
			
                        
                                    
                        
                                                    
                        
            
			            
						
						
			
			
			
			
		


        
        
        
    
					

			





















	

	

					



			


				
	









	
    
	

  • 
	
    



	
			
		
	



    
	
    
		
    
							
					
    
		
    
		    
		    		    
			
				
									
							        
			
			
			
    •  Analog Employees  
    
            
						
                            
            
            				
            
                on Jul 28, 2026 9:51 AM
            
            
						
			            		
    
		
										+1
					
	
    

		
		
    
		
    
                                
                                                            
    
					
    I recommend you use the value that is used on the evaluation board.  The L1 inductor part number is 0603LS-561XJLB from Colicraft. Here is the BOM for the HMC742A evaluation board. 
     
    HMC742LP5 EVAL (70 - 1000 MHZ)
     QtyRefdesDescriptionManufacturer MFR Part Number
     1U10.5 DB LSB GAAS MMIC 6-BIT DIGITAL VARIABLE GAIN AMPLIFIER, 0.07 - 4 GHZADIHMC742ALP5E
     2J1-J2SCD, COMP, SMA CONNECTOR, JOHNSONJohnson Components142-0701-851
     1J3CONN HEADER 2MM 18 POS VERT SMTMolex87759-1850
     3J4-J6COMP, MILL-MAX DC PINMill-Max3101-2-00-21-00-00-08-0
     2SW1-SW2SPDT DIP SWITCH, SMT, 4 POS, SEALEDCTS Corporation204-124ST
     3C1,C6,C8CAP 10000PF 16V 10% CERAMIC X7R 0402MurataGRM155R71C103KA01D
     5C2-C5,C9CAP 1000PF 50V CERAMIC X7R 0402MurataGRM155R71H102KA01D
     1C7CAP CERM 100PF 5% 50V C0G 0402KemetC0402C101J5GACTU
     1C11CAP 1000PF 50V 10% CERAMIC X7R 0603MurataGRM188R71H102KA01D
     1C12CAP 5600PF 50V CERAMIC 0603 SMDMurata GRM188R71H562KA01D
     1C14CAP TANT 2.2UF 25V 10% SMD CASE AAVX Corp.TAJA225K025R
     14R1-R14RES 100K OHM 1/10W 1% 0402 SMDPanasonicERJ-2RKF1003X
     1R15RES ZERO OHM 1/4W 5% 1206 SMDPanasonicERJ-8GEY0R00V
     1L1Inductor, 560nH, 0603, 5%, .55 AmpCoilcraft0603LS-561XJLB
    
			
    

		
			
	      

		
		
	
    
	
    
		
    
			
		
    
	
    
	
    
		
						
						
						
				
				
				
		
		
    
			
		
    
	
    

    

    • 

	

  • 
	

    • 

	

  • 
	

    • 

	





	
			








	






































     



















		        
        

            
Before You Switch

            
        

        

        

            Switching languages will make ADI Explorer unavailable. Resume your session by switching back to English and reopening ADI Explorer.