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为什么AD8302相位输出的结果是反的？


		

			

									
						two_zero
					
							

			
				
									
											
							 		
		        	            							
			
			    	
			                    
                
				                on Jun 15, 2014 
				
			
			
		


				
		

			
我在调试AD8302在低频下的鉴相功能，前面耦合电容用的是100UF，VPHS的输出能比较好地反映输入信号的相位差，但是结果和数据手册上却是相反的，比如相位差为0，VPHS=0，相位差180°，VPHS=1.8，请问这是为什么？耦合电容我用的是电解电容

								


				
				
		

			
						
									
									
						
						
			
			
			
			
		


					

			





	

		
	











	

	

					



			








	
	
	
	



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