A phase shift circuit includes a first sine generation circuit generating a sine-converted
output signal (sin ) of the phase shift input signal () and a reversed
sine-converted output signal (-sin ) of the phase shift input signal (),
a cosine generation circuit generating a cosine-converted output signal (cos )
of the phase shift input signal (), a first multiplication circuit, a second
multiplication circuit, a third multiplication circuit, a fourth multiplication
circuit, a first addition circuit adding an output signal of the first multiplication
circuit to an output signal of the second multiplication circuit, and a second
addition circuit adding an output signal of the third multiplication circuit to
an output signal of the fourth multiplication circuit. This configuration makes
the construction of a phase shift circuit for tint adjustment simple because of
a coordinate transformation embedded in the configuration.
