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    • 9. 发明申请
    • Hybrid binary/thermometer code for controlled-voltage integrated circuit output drivers
    • 用于控制电压集成电路输出驱动器的混合二进制/温度计代码
    • US20050242830A1
    • 2005-11-03
    • US10835906
    • 2004-04-30
    • Guy HumphreyDavid Linam
    • Guy HumphreyDavid Linam
    • H03K19/00H03K19/003
    • H03K19/0005
    • A hybrid binary/thermometer code is employed to adjust the output impedance of a variable impedance output driver circuit having an impedance network comprising a plurality of impedance legs each programmably electrically connectable according to the hybrid binary/thermometer code in parallel between a voltage source and the signal pad. The plurality of impedance legs are partitioned into one or more set pairs of binary stepped impedance legs and corresponding thermometer stepped impedance legs. A binary set of calibration signals in the hybrid binary/thermometer code steps a given set of binary stepped impedance legs according to a binary code and a thermometer set of calibration signals in the hybrid binary/thermometer code steps the corresponding set of thermometer stepped impedance legs according to a thermometer code once per full count iteration of the binary set of calibration signals.
    • 采用混合二进制/温度计代码来调整具有阻抗网络的可变阻抗输出驱动器电路的输出阻抗,该阻抗网络包括多个阻抗支路,每个阻抗支路可根据混合二进制/温度计代码在电压源和 信号垫。 多个阻抗腿分成一组或多组二进制步进阻抗腿和对应的温度计步进阻抗腿。 混合二进制/温度计代码中的一组二进制校准信号根据二进制码和二进制/温度计代码中的温度计校准信号组合,给出一组给定的二进制步进阻抗支路,步进相应的温度计步进阻抗腿组 根据温度计代码,每次完全计数二进制集合的校准信号。