Terminal equipment and noise reduction circuit

The invention discloses terminal equipment and a noise reduction circuit, relates to the field of circuit design, and is used for inhibiting outward radiation of electromagnetic noise generated by terminal equipment in a screen-on state when any terminal equipment in the terminal equipment connected by a cable is in the screen-on state. The terminal equipment comprises M first grounding ends, a transmission interface with M second grounding ends, and a noise reduction circuit. The noise reduction circuit comprises M magnetic bead modules, and each magnetic bead module comprises magnetic beads. The M first ground terminals are respectively coupled to the M second ground terminals through the M magnetic bead modules. Wherein M is a positive integer. 本申请公开了一种终端设备及降噪电路，涉及电路设计领域，用于在采用线缆连接的终端设备中的任一终端设备处于亮屏状态时，抑制处于亮屏状态的终端设备产生的电磁噪声向外辐射。其中，该终端设备包括M个第一接地端、具有M个第二接地端的传输接口和降噪电路。该降噪电路包括M个磁珠模块，每个磁珠模块包括磁珠。M个第一接地端分别通过M个磁珠模块耦合至M个第二接地端。其中，M为正整数。