Document and Entity Information	9 Months Ended
	Dec. 28, 2013	Jan. 24, 2014
Document and Entity Information [Abstract]
Entity Registrant Name	RF MICRO DEVICES INC
Entity Central Index Key	0000911160
Document Type	10-Q
Document Period End Date	Dec. 28, 2013
Amendment Flag	false
Document Fiscal Year Focus	2014
Document Fiscal Period Focus	Q3
Current Fiscal Year End Date	--03-29
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding		282,535,754