| 摘要 |
A radio frequency receiver circuit, for example for receiving digital terrestrial television broadcast signals. Such signals include wanted signals in wanted frequency bands, and may also include interference signals close to the wanted frequency bands. The receiver circuit receives a first intermediate frequency signal, and achieves downconversion by sub-sampling in an analog-digital converter. The sampling rate of the analog-digital converter is chosen relative to the intermediate frequency such that a known interference signal does not alias into the wanted frequency band, allowing it to be removed at baseband.
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