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    • 6. 发明授权
    • High-frequency circuit in which high-frequency filter is parallel installed to integrated circuit
    • 将高频滤波器并联安装到集成电路的高频电路
    • US08422980B2
    • 2013-04-16
    • US11940992
    • 2007-11-15
    • Masaki Yamamoto
    • Masaki Yamamoto
    • H03D7/1433
    • H04N5/455H04N5/44H04N21/4263
    • The present invention provides a high-frequency circuit capable of acquiring the original transmission characteristics of a filter by preventing capacitive coupling between input and output terminals of the filter externally attached to the integrated circuit and effectively using a mounting space. The high-frequency circuit includes a rectangular integrated circuit 10 having two long sides 10a and 10b and two short sides 10c and 10d and a SAW filter 15, disposed to be adjacent to the short side 10d of the integrated circuit 10, having input terminals 24a and 24b disposed on the long side 10a side and output terminals 28a and 28b disposed on the other long side 10b side. IC output terminals 22a and 22b connected to input terminals 24a and 24b of the SAW filter 15 are disposed on a position of one long side 10a of the integrated circuit 10 on the SAW filter 15 side, and IC input terminals 26a and 26b connected to output terminals 28a and 28b of the SAW filter 15 are disposed on a position of the other long side 10b of the integrated circuit 10 on the SAW filter 15 side.
    • 本发明提供了一种能够通过防止外部连接到集成电路的滤波器的输入和输出端子之间的电容耦合并且有效地使用安装空间来获得滤波器的原始传输特性的高频电路。 高频电路包括具有两个长边10a和10b以及两个短边10c和10d的矩形集成电路10以及与集成电路10的短边10d相邻设置的SAW滤波器15,其具有输入端子24a 和24b设置在长边10a侧,输出端子28a和28b设置在另一个长边10b侧。 连接到SAW滤波器15的输入端子24a和24b的IC输出端子22a和22b设置在SAW滤波器15侧的集成电路10的一个长边10a的位置,并且连接到输出端的IC输入端子26a和26b SAW滤波器15的端子28a和28b设置在SAW滤波器15侧的集成电路10的另一个长边10b的位置上。