| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a slice circuit capable of accurately converting an input analog signal into a digital signal even when the input signal includes a drift of fast changing DC offset. <P>SOLUTION: The slice circuit 90 includes: a DC component adjustment circuit 92; an integrator 93; an LPF 94; and a comparator 95. The DC component adjustment circuit 92 adjusts only a DC component of the input signal received from an input terminal 91 so that the result has a DC component comprising a prescribed voltage level. The integrator 93 amplifies only high frequency components of a prescribed frequency or over in the input signal received from the DC component adjustment circuit 92. The LPF 94 detects an average voltage of the input signal received from the DC component adjustment circuit 92. The comparator 95 compares voltage of an output signal from the integrator 93 with voltage of an output signal from the LPF 94 and outputs a digital signal with a logic level depending on the result of comparison to an output terminal 96. <P>COPYRIGHT: (C)2004,JPO |
