发明授权
US06400771B1 Driver circuit for a high speed transceiver 失效
用于高速收发器的驱动电路

  • 专利标题: Driver circuit for a high speed transceiver
  • 专利标题(中): 用于高速收发器的驱动电路
  • 申请号: US09119832
    申请日: 1998-07-21
  • 公开(公告)号: US06400771B1
    公开(公告)日: 2002-06-04
  • 发明人: Guy H. Humphrey
  • 申请人: Guy H. Humphrey
  • 主分类号: H04B300
  • IPC分类号: H04B300
Driver circuit for a high speed transceiver
摘要:
The present invention is generally directed to a driver circuit for a high speed transceiver. In accordance with one aspect of the invention, the driver circuit includes a first driver segment disposed to receive a control signal and configured to drive the control signal from a logic zero state to a logic one state and place the driven signal on a first driver segment output. Similarly, the driver circuit includes a second driver segment disposed to receive the control signal and configured to drive the control signal from a logic one state to a logic zero state and place the driven signal on a second driver segment output. In this regard, the control signal is a signal generated internally (i.e., within the chip) to be driven across a bus to another chip. The strength of the control signal must be increased before driving the control signal onto the bus. For this reason, the first driver segment and the second driver segment each include a plurality of drive units that are disposed in a cascaded configuration. As the control signal passes through each successive drive unit, it gains in signal strength. As will be appreciated by persons skilled in the art, this cascaded drive unit configuration provides for an extremely fast overall power build-up of the signals, as opposed to using a single, more powerful drive unit. To balance the timing delay between the two segments, a delay element is serially disposed within the segment have the fewer inversions.
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