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AD7177-2采样率问题



		

			

									
					    SHENss
					
							

			
				
									
											
			
			
				
    
			
			
			    	
			                    
                
				                on Jun 17, 2022 
				
			
			
		
    

				
		
    
		    		    
		    
		    	
			
    AD7177配置成外部时钟，连续读取模式，1KHz采样，但是从示波器看到的DOUT/RDY引脚输出的下降沿频率只有998Hz，给入的MCLK精度为1ppm，理论上不应该出现这么大的误差，请问这个现象是由什么原因导致的？并且该如何改善？
    
									
			        
		
    

				
						
        

    
    Tags: 
                                            
                 Multiplexed A/D Converters
                
                                                    
                 ad7177-2
                
                                                    
                 Precision A/D Converters