| 摘要 |
A balance-type RF receiver is provided to reduce the size and manufacturing cost of products by installing a trap circuit which works in common between two output ports of a balance-type tuner and two input ports of a balance-type SAW filter. A balance-type RF receiver comprises a balance-type tuner IC(10), a balance-type SAW filter(30), and a trap circuit(20). The balance-type tuner IC(10) outputs two IF(Intermediate Frequency) signals having a phase difference. The balance-type SAW filter(30) receives the two output signals through two input ports and filters them. The trap circuit(20), installed in common between two output stages of the balance-type tuner IC(10) and two input ports of the balance-type SAW filter(30), intercepts the frequency of an adjacent channel.
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