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    • 8. 发明公开
    • 회로 소자들을 동적으로 선택하는 회로 및 방법
    • 用于动态选择电路元件的电路和方法
    • KR1020100007881A
    • 2010-01-22
    • KR1020097024122
    • 2008-05-02
    • 퀄컴 인코포레이티드
    • 다바크하이크-타니엘맥칼리스터진에이치서동원
    • H03M1/06H03M1/74
    • H03M1/0665H03M1/0673H03M1/74H03M3/502
    • Techniques for dynamically selecting circuit elements to combat mismatches are described. In one design, an apparatus includes first, second, and third circuits. The first circuit receives input data and provides first signals that are asserted based on the input data, e.g., with thermometer decoding. The second circuit receives the first signals and provides second signals used to select circuit elements, e.g., current sources, capacitors, resistors, etc. The third circuit generates a control for the second circuit, and the second circuit maps the first signals to the second signals based on this control. In one design, the second circuit includes a set of multiplexers and a control circuit. The multiplexers provides the first signals, circularly rotated by an amount determined by the control, as the second signals. The control circuit accumulates control data (e.g., the input data, pseudo-random data, or a fixed value) with the current control value to obtain new control value.
    • 描述了用于动态选择电路元件以抵抗不匹配的技术。 在一种设计中,装置包括第一,第二和第三电路。 第一电路接收输入数据并提供基于输入数据而被确定的第一信号,例如用温度计解码。 第二电路接收第一信号并提供用于选择电路元件的第二信号,例如电流源,电容器,电阻器等。第三电路产生用于第二电路的控制,第二电路将第一信号映射到第二信号 基于此控制的信号。 在一种设计中,第二电路包括一组多路复用器和一个控制电路。 复用器提供循环旋转了由控制确定的量的第一信号作为第二信号。 控制电路用当前控制值累积控制数据(例如,输入数据,伪随机数据或固定值)以获得新的控制值。