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AssigneeApplied Micro Circuits Corporation
InventorsViet Linh Do, Simon Pang
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A system and method are provided for synthesizing signal frequencies using a single reference clock and a primitive ratio of integers. The method accepts a plurality (k) of reference frequency values (fri), where 1≦i≦k, associated with a corresponding plurality of synthesized frequency values (foi). For each synthesized frequency value, a raw ratio of integers Nprawi and Dprawi is calculated, such that: f o i = Np raw i Dp raw i × f r i . A greatest common divisor (GCD) of Nprawi and Dprawi and a primitive ratio of integers Np i Dp i is found for each raw ratio of integers, such that: N p i = Np raw i GCD ( Np raw i , Dp raw i ) ; and , D p i = Dp raw i GCD ( Np raw i , Dp raw i ) . Using the common clock frequency value (fcr), each primitive ratio of integers, each reference frequency value, and each GCD, a final ratio of integers Ncri and Dcri, C · ( N cr i D cr i ) , is calculated for each synthesized frequency value, where C is an integer value.
In a frequency synthesis device, a method for synthesizing signal frequencies using a single reference clock and a primitive ratio of integers, the method comprising:
In a frequency synthesis device, a system for synthesizing signal frequencies using a single reference clock and a primitive ratio of integers, the system comprising:
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