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ISOLATED DIGITAL VIDEO INTERFACE RECEIVER AND METHOD FOR ISOLATING RECEIVED DIGITAL VIDEO INTERFACE SIGNALS
ISOLATED DIGITAL VIDEO INTERFACE RECEIVER AND METHOD FOR ISOLATING RECEIVED DIGITAL VIDEO INTERFACE SIGNALS
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机译:隔离的数字视频接口接收器和隔离接收的数字视频接口信号的方法
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摘要
Digital video signals are transmitted from a transmitter to a receiver (100B) via a digital video interface including shielded twisted pair cables (200A, 200B) that are surrounded by an over-braid shield (250). The over-braid shield is connected to a chassis ground (140) at a transmitting end and the receiving end. An interface conveys the received signals to receiver processing circuitry (150). The interface is connected to an isolated ground (125B), isolating the receiver processing circuitry. Cable shields of the twisted pairs are also connected to the isolated ground (125B), such that a return current is forced back through the twisted pair cable shields rather than the over-braid shield. This reduces electromagnetic emissions and confines transients primarily to the over-braid shield.
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