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AD9375 Recommended for New Designs
The AD9375 is a highly integrated, wideband radio frequency (RF) transceiver offering dual-channel transmitters (Tx) and receivers (Rx), integrated synthesizers...
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AD9375 on Analog.com

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AD9375 TX1 and TX2 impedance matching Network in band 300 to 1000Mhz

		
	
				

			

									
					    alexisdupont1994
					
							

            
            			
				
									
											
			
			
				
			
			
			    	
			                    
                
				                on May 11, 2026 
				
			
			
		

		
		                     
				
        		

		    
		    		    

		      		            		        
Category: Hardware

    		        		            		    
Product Number:  AD9375  

    		        		    		    

		    		    
		    			

			    
Hi,


we are planing to use the AD9375 in the frequency band of 300 to 1000Mhz. From the UG-992 p.252 , we have to use the following components for the following circuit (See images below).


So, we have to use the B0322J5050AHF. From the component, it seems that L305 must be added, however, the conversation at this link tells that the L305 is DNI:



https://ez.analog.com/rf/wide-band-rf-transceivers/design-support-ad9371/f/q-a/575671/b0322j5050ahf-for-ad9371-s-tx-port




I am a little confuse by that answer, so i just want to validate if i have to put L305 between Pin 2 and Pin 3, but not to pin 4?






 


 




Thank you very much and have a nive day!

			

			
									
		                             
                        

    

                                            
                 hardware
                
                                                    
                 software defined radio
                
                                                    
                 impedance matching
                
                                                    
                 ad9375
                
                                                    
                 rf and microwave
                
                                        
                                            
                
                
                                
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    •  Analog Employees  
    
            
						
                            
            
            				
            
                on May 22, 2026 9:50 AM
            
            
						
			            		
    
		
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    If you are using ADRV9371-N/PCBZ matched for 1.8GHz – 2.6GHz , L305 is DNI and if you are using ADRV9371-W/PCBZ matched for 300MHz – 6GHz then we recommend to have a different matching network,please see attached screenshot
    

      
    
			
    

		
			
	      

		
		
	
    
	
    
		
    
			
		
    
	
    
	
    
		
						
						
				
						
				
				
		
		
    
			
		
    
	
    

    

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                on May 22, 2026 10:09 AM
            
            
												
						in reply to vanitha
					
										
			            		
    
		
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    Hi,
    

    Thanks for the reply. The device we will be using is the AD9375 and we are using the EVM of the AD9375 as a reference. We are using the ADRV9371-N/PCBZ and want to match it for 300-1000Mhz, not 1.8Ghz - 2.6Ghz. So we are using the user guide to change value of the passive components to match the frequency 300-1000Mhz (See original post). The UG says to populate L305 for the band 300-1000Mhz with the circuit of the EVM, but the  Anaren B0322J5050AHF datasheet Pin 2 is stated as GND. Is that an error or do we really have to connect it? All the screenshot of the original post are from the UG of the AD9375.
    

    

    Thanks again and have a nice day!
    
			
    

		
			
	      

		
		
	
    
	
    
		
    
			
		
    
	
    
	
    
		
						
						
				
						
				
				
		
		
    
			
		
    
	
    

    

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                on May 22, 2026 10:09 AM
            
            
												
						in reply to vanitha
					
										
			            		
    
		
										0
					
	
    

		
		
    
		
    
                                
                                                            
    
					
    Hi,
    

    Thanks for the reply. The device we will be using is the AD9375 and we are using the EVM of the AD9375 as a reference. We are using the ADRV9371-N/PCBZ and want to match it for 300-1000Mhz, not 1.8Ghz - 2.6Ghz. So we are using the user guide to change value of the passive components to match the frequency 300-1000Mhz (See original post). The UG says to populate L305 for the band 300-1000Mhz with the circuit of the EVM, but the  Anaren B0322J5050AHF datasheet Pin 2 is stated as GND. Is that an error or do we really have to connect it? All the screenshot of the original post are from the UG of the AD9375.
    

    

    Thanks again and have a nice day!
    
			
    

		
			
	      

		
		
	
    
	
    
		
    
			
		
    
	
    
	
    
		
						
						
				
						
				
				
		
		
    
			
		
    
	
    

    

    • 





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