| 摘要 |
PURPOSE: A broadcast receiver performing loop-through without power supply is provided to perform a loop-through function without power supply by amplifying an RF broadcasting signal after distributing an RF broadcasting signal through a Balun circuit unit. CONSTITUTION: A Balun circuit unit(21) splits an RF broadcasting signal received from an antenna into a loop-through signal and a tuning signal, and a low-noise amplifier(22) removes a noise from the RF broadcasting signal, then amplifies the noise-removed RF broadcasting signal. A tuning unit(23) tunes the amplified RF broadcasting signal and outputs the tuned RF broadcasting signal as data. The tuner unit(23a) converts the amplified RF broadcasting signal into an intermediate frequency.
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