A television tuner includes an unbalanced output type VHF-side block, a
balanced output type UHF-side block, and a mixing circuit that performs
frequency conversion on the output from the VHF-side block or the
UHF-side block. In the television tuner, in a first mode where the
VHF-side block is connected to the mixing circuit, a first terminal, to
which the unbalanced output is applied, is coupled to a first input
terminal of the mixing circuit, and a second input terminal of the mixing
circuit is grounded. Further, in a second mode where the UHF-side block
is connected to the mixing circuit, a second terminal and a third
terminal, to which the balanced output is applied, are coupled to the
first and second input terminals of the mixing circuit.