A television tuner (920) is adapted for use in a television receiver (900)
that receives a radio frequency (RF) signal from an input device (910)
and outputs audio and video information from a selected channel in
response thereto. The television tuner (920) includes a direct digital
frequency synthesizer (206) and a mixer (220). The direct digital
frequency synthesizer (206) has an output for providing a digital
representation of a mixing signal. The mixer (220) has a signal input for
receiving a television signal, a mixing input coupled to the output of
said direct digital frequency synthesizer (206), and an output for
providing an intermediate frequency (IF) television signal.