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ADIN1110 Recommended for New Designs
The ADIN1110 is an ultra low power, single port, 10BASE-T1L transceiver design for industrial Ethernet applications and is compliant with the IEEE® 802...
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ADIN1100 Recommended for New Designs
The ADIN1100 is a low power, single port, 10BASE-T1L transceiver designed for industrial Ethernet applications and is compliant with the IEEE® 802.3cg...
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ADIN1100 on Analog.com

ADIN2111 Recommended for New Designs
The ADIN2111 is a low power, 2-port 10BASE-T1L transceiver designed for industrial Ethernet applications, and is compliant with the IEEE® 802.3cg-2019...
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ADIN2111 on Analog.com

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SPI Communication issue



		

			

									
					    Chethank
					
							

			
				
									
											
			
			
				
    
			
			
			    	
			                    
                
				                on Sep 17, 2024 
				
			
			
		
    

				
		
    
		    		    
		    
		    		      		            		        
    Category: Hardware
    
    		        		            		    
    Product Number:  ADIN1110  
    
    		        		    		    	
			
    Hi Team,
    

    We have implemented the Zener diodes for clamping high voltages and Series resistors for current limiting on the ADIN1110 SPI lines, these Zener diodes make issue for SPI communication(Without zener diodes SPI communication working fine). Please refer to the attached block diagram.
    

    I am having this problem for quite long time. Any kind of help would be appreciated. 
    

    

     
    
									
			        
		
    

				
						
        

    
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      •  Analog Employees  
      
            
						
                            
            
            				
            
                on Sep 26, 2024 3:45 AM
            
            
					
      
	
      

		
		
      
					
      Hi Chethan,
      

      I don't think you need to use clamping here unless the traces are excessively long or the MCU and ADIN1110 are in different PCBs. However, in the case you actually do, make sure the parasitic capacitance of the diodes is low.
      

      We suggest you replace the zener diodes in the circuit with low capacitance TVS diodes (refer to ADIN1110 schematics).
      

      

       
      

      Regards,
      

      Shazia
      
			
      

		
			
	      

		
		
	
      
	
      
		
      
			
		
      
	
      
	
      
		
						
						
				
						
				
				
		
		
      
			
		
      
	
      

      

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