公开(公告)号：US07065026B2

公开(公告)日：2006-06-20

申请号：US10248444

申请日：2003-01-21

申请人： Wei-Chou Hung ,  Kou-Chih Peng ,  Chia-Ching Lee

发明人： Wei-Chou Hung ,  Kou-Chih Peng ,  Chia-Ching Lee

IPC分类号： G11B7/00

CPC分类号： G11B7/005 ,  G11B20/10009 ,  G11B2020/1457

摘要： A data slicer capable of removing current mismatch between internal current pumps and its operating method is proposed. The data slicer includes a comparator for comparing an analog signal with a slice reference level to convert the analog signal into a digital signal, a counter electrically connected to the comparator for calculating a digital sum value according to logic values carried by the digital signal, and a voltage-adjusting circuit electrically connected to the comparator for adjusting the slice reference level. The voltage-adjusting circuit has two current pumps for shifting the slice reference level. The current generated by the current pumps can be adjusted according to the calculated digital sum value to reduce a difference between a first and a second binary values which are used to increase and decrease the slice reference level respectively.

摘要翻译： 提出了一种能够消除内部电流泵之间电流不匹配的数据限幅器及其操作方法。 数据限幅器包括比较器，用于将模拟信号与限幅参考电平进行比较，以将模拟信号转换为数字信号;电连接到比较器的计数器，用于根据由数字信号承载的逻辑值计算数字和值;以及 电压调节电路，电连接到比较器，用于调整切片基准电平。 电压调节电路具有用于移动切片参考电平的两个电流泵。 可以根据计算出的数字和值来调整由当前泵产生的电流，以减小分别用于增加和减小切片参考电平的第一和第二二进制值之间的差值。