05184093 is referenced by 31 patents and cites 5 patents.

A frequency synthesizer, including a direct digital synthesizer (DDS) for providing wave amplitude data as a standard signal source, and a phase lock loop for comparing a branched synthesizer frequency with the standard signal source at a phase comparator. A frequency converter converts the output frequency of the DDS to a higher frequency and provides the resultant higher frequency to the phase comparator in the phase loop. A small loop dividing ratio is obtained by converting the low frequency of the DDS to a higher frequency. A spurious of the synthesizer output signal is reduced and provides a low power consumption apparatus.

Title
Frequency synthesizer
Application Number
7/840937
Publication Number
5184093
Application Date
February 25, 1992
Publication Date
February 2, 1993
Inventor
Shuji Urasaki
Kanagawa
JP
Akio Iida
Kanagawa
JP
Kenji Itoh
Kanagawa
JP
Agent
Wolf Greenfield & Sacks
Assignee
Mitsubishi Denki Kabushiki Kaisha
JP
IPC
H03L 7/00
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