Frequency converter enabling a non-integer division ratio to be programmed by means of a unique control word
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United States of America Patent
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Oct 1, 2002
Grant Date -
Oct 11, 2001
app pub date -
Mar 2, 2001
filing date -
Mar 10, 2000
priority date (Note) -
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Abstract
The invention relates to a frequency converter FCV comprising a frequency divider FRACN, and an input port REG intended to receive a control word N(1:L) which determines a division ratio between the input FLO and output FDIV frequencies of the frequency divider FRACN. The frequency converter in accordance with the invention FCV additionally comprises interface means INT, arranged between the input port REG and the frequency divider FRACN, and intended to carry out a conversion of a control word value N(1:L) to a first and a second parameter M(1:L-P) and k(1:P) which jointly define a non-integer value of the division ratio of the frequency divider FRACN. The invention enables the user to program the frequency divider FRACN by means of a unique control word N(1:L), while customarily two control words are necessary to program non-integer division ratios.
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