Electronic Circuit Device

摘要

A circuit ( 1 a) having analog circuits processes an analog input signal (Vin). The circuit ( 1 a) having the analog circuits sends a coefficient s 1 to a coefficient detection/control circuit ( 1 b). The coefficient s 1 indicates a predetermined property of each of the analog circuits provided in the circuit ( 1 a). The coefficient detection/control circuit ( 1 b) processes and detects the coefficient s 1 as a signal value so as to detect the property of the analog circuit. The coefficient detection/control circuit ( 1 b) sends a control signal s 2, which is obtained according to a result of the detection of the coefficient s 1, to the circuit ( 1 a) having the analog circuit. In this way, the coefficient detection/control circuit ( 1 b) adjusts an operation condition of the analog circuit so as to control an operation of the circuit ( 1 a) having the analog circuit. This makes it possible to use a manufactured analog circuit with good precision, and to realize an electronic circuit device that allows reduction of (i) electric power consumption of the analog circuit and (ii) circuit scale thereof.