发明名称 FREQUENCY-VOLTAGE CONVERSION CIRCUIT AND SEMICONDUCTOR INTEGRATED CIRCUIT DEVICE
摘要 <P>PROBLEM TO BE SOLVED: To provide a frequency-voltage conversion circuit having good linearity. <P>SOLUTION: The frequency-voltage conversion circuit comprises: a differentiation circuit receiving a clock signal; a buffer circuit receiving an output from the differentiation circuit outputting it as a pulse wave; an integration circuit converting the pulse wave output by the buffer circuit to a DC voltage; and a MOS transistor receiving the clock signal at a gate terminal and having a source terminal connected to a ground terminal and a drain terminal connected to an output terminal of the differentiation circuit. <P>COPYRIGHT: (C)2012,JPO&INPIT
申请公布号 JP2011223142(A) 申请公布日期 2011.11.04
申请号 JP20100087532 申请日期 2010.04.06
申请人 RENESAS ELECTRONICS CORP 发明人 FUJIWARA TSUKASA
分类号 H03K5/19 主分类号 H03K5/19
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