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AD375 DPD GUI

		
		

		

			

									
						tunsam
					
							

			
				
									
											
			        
                                                			
				
			
		


				
		

		    
		    
		    		    
			
Hi All


Please I have a question about AD375 DPD GUI


In attached  I have two remarks about your ACLR method :


1. what do you mean by Total carrier power ( for Carrier Aggregation,
For the outermost component carrier with channel bandwidth ≥5 MHz, the channel bandwidth of the outermost component carrier should be considered for ACLR requirements)


2.what do you mean by AM-AM error ??




Thank you


 

								


				
				
		

			
						
									
									
						
						
			
			
			
			
		


					

			





	

		
	











	

	

					



			


				
	









	
    
	

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    • 1)The left side ACLR is measured with reference to the carrier on the left and similarly on the right side as well.
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    • 2)The AM-to-AM response of the amplifier, Gain versus the input power, is one of the key characteristics used to determine the linearity and correctability of a given PA. A linear PA produces a straight AM-to-AM line response; for each 1dB increase in input power, the output power of the PA increases by exactly 1dB; being linear, the PA produces no distortion.
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    • AM-AM distortion (Error) is the difference between the ideal gain curve and the measured gain curve. Uneven gain over frequency and (un-linearized) AM-AM gain variation greater than 2dB can significantly degrade the overall linearization performance.
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