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GAIN SWITCHING METHOD OF PHASE SHIFTER CIRCUIT, CONTROL CIRCUIT OF PHASE SHIFTER CIRCUIT AND PHASE SHIFTER CIRCUIT
GAIN SWITCHING METHOD OF PHASE SHIFTER CIRCUIT, CONTROL CIRCUIT OF PHASE SHIFTER CIRCUIT AND PHASE SHIFTER CIRCUIT
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机译:移相电路的增益切换方法,移相电路的控制电路和移相电路
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摘要
PROBLEM TO BE SOLVED: To miniaturize a circuit without installing an input terminal for inputting only a control signal from an outer device.;SOLUTION: A switching control part 36 generates the control signals DA and DB for selecting a pair of first and second differential amplifiers 32 and 33 or a pair of third and fourth differential amplifiers 34 and 35 based on an input signal Sin. The switching control part 36 generates the control signal DA selecting a pair of first and second differential amplifiers 32 and 33 in the case of the input signal Sin of a first frequency f1. The switching control part 36 generates the control signal DB for selecting a pair of third and fourth differential amplifiers 34 and 35 in the case of the input signal Sin of a second frequency f2.;COPYRIGHT: (C)2001,JPO
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