Generating an output signal with a frequency that is a non-integer fraction of an input signal
AssigneeTexas Instruments Incorporated
InventorAnant Shankar Kamath
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AssigneeTexas Instruments Incorporated
InventorAnant Shankar Kamath
Estimating the term…
Generating an output signal having a frequency of 1/(M+F) of the frequency of the input signal, wherein M represents an integer and F represents a non-zero fraction. Assuming F equals (Q/R) in one embodiment, wherein Q and R are integers, R intermediate signals phase shifted by equal degree (relative to the one with closest phase shift) in one clock period of the input signal are generated. A selection circuit may select one of the intermediate signals in one clock cycle, select the successive signals with increasing phase shift in Q clock cycles, and leave the intermediate signal with the same shift as in the previous clock cycle in the remaining ones of the M clock cycles. A counter counts a change of state in the output of the selection circuit, and generates a pulse representing an edge of the output signal at the time instance when counter counts M.
A device comprising:
Dependencies are inferred from the claim text.