Title:
Rectangular-wave-generator
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Description: Direct digital frequency synthesis (DDS) technology design principles, the output frequency is set by the button, LED low 5 shows the output frequency button to set the output signal duty cycle, the upper two digital display output signal duty cycle, the duty type is the fixed ratio of seven kinds: 8: 1,4: 1,2: 1,1: 1,1: 2,1: 4,1: 8,, corresponding to read: 8.1,4.1,2.1,1.1,1.2 , 1.4,1.8.
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Rectangular wave generator.doc
