Circuit for electrostatic discharge protection for wide frequency range multi-band interfaces

    公开(公告)号:US11355924B2

    公开(公告)日:2022-06-07

    申请号:US16976083

    申请日:2019-05-22

    Abstract: A circuit for electrostatic discharge (ESD) protection for wide frequency range multi-band interfaces. The interface may be split into a plurality of signal paths. Each signal path may include an ESD protection circuit configured to shunt an ESD current on each signal path to either ground or supply voltage and a filter configured to block signals from other signal paths. The signal paths are connected to a common signal line such that the signals for the plurality of signal paths can be transported simultaneously. The plurality of signal paths may be a high frequency path and a low frequency path. The low frequency path may include an inductor connected in series and the high frequency path may include a capacitor or transformer connected in series. The ESD protection circuit on each signal path is placed behind the inductor, the capacitor or the transformer.

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