Odd -number factor frequency divider and 90o phase splitter which operates from output signal of the frequency divider

A frequency divider method comprising:

• performing frequency division operation by supplying an externally derived signal, as a clock signal, to a circuit formed of a plurality of master-slave D-type flip-flops connected in cascade and each synchronized with the clock signal, each master-slave D-type flip-flop being formed of a master D-type latch and a slave D-type latch connected in cascade, with the master D-type latch synchronized with the clock signal and the slave D-type latch synchronized with the inverse of the clock signal,
• deriving a negated logic sum signal by inputting to a NOR gate a Q-terminal output from a master D-type latch of a final stage of said cascade-connected plurality of master-slave D-type flip-flops and a Q-terminal output from a slave D-type latch of said final stage, and
• applying said negated logic sum signal to a D input terminal of a master D-type latch of a master-slave D-type flip-flop of an initial stage of said cascade-connected plurality of master-slave D-type flip-flops, while outputting said negated logic sum signal as a final output signal.