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Crosstalk cancellation for frame memory bus on TV main boards

机译:电视主板上帧存储器总线的串扰消除

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Memory bus lines between a controller and frame memories on a TV main board are usually densely packed, which give rise to noise like crosstalk-induced jitter (CIJ), crosstalk-induced glitch (CIG), and(or) reflections. Since these types of noise can substantially limit the data rate between the controller and the frame memory, we may need a larger number of frame memories, an increased printed circuit board (PCB) layout size, and more PCB layers to minimize these noise components, resulting in an increased design cost. To cope with this issue, this work proposes a 1/3 unit interval (UI)-staggering in the transmitter side and a capacitive coupling-induced crosstalk compensation in the receiver side. Evaluation results indicated that CIJ and CIG are reduced by up to 75% and 65% at 1Gbps data rate, respectively. They also indicated that the proposed method enables 5Gbps operation per pin on a frame memory bus for TVs.
机译:控制器与电视主板上的帧存储器之间的存储器总线线路通常密集排列,从而产生诸如串扰引起的抖动(CIJ),串扰引起的毛刺(CIG)和(或)反射之类的噪声。由于这些类型的噪声会大大限制控制器与帧存储器之间的数据速率,因此我们可能需要更多的帧存储器,增加的印刷电路板(PCB)布局尺寸以及更多的PCB层,以最大程度地减少这些噪声分量,导致设计成本增加。为了解决这个问题,这项工作提出了在发射器侧进行1/3单位间隔(UI)交错以及在接收器侧进行电容耦合引起的串扰补偿。评估结果表明,在1Gbps数据速率下,CIJ和CIG分别降低了多达75%和65%。他们还指出,所提出的方法使电视的帧存储器总线上的每个引脚能够实现5Gbps的操作。

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