| abstract |
An inverter-type delay circuit, a voltage-controlled oscillation circuit, and a voltage-controlled delay circuit can be realized in which the circuit configuration can be simplified, the influence of power supply noise can be reduced, and jitter can be reduced.n n n The driving current is controlled in accordance with a bias voltage or a control voltage, and a plurality of stages of delay stages for determining a delay time are connected by the driving current, and a change in power supply voltage is added to the bias voltage or the control voltage at a predetermined ratio. By supplying the addition result to each of the delay stages, a plurality of delays suppressing the power supply voltage dependency of the delay time of each delay stage and having different power supply voltage dependences, for example, power supply voltage dependences in which the delay times are opposite to each other. A delay circuit, a voltage controlled delay circuit, and a voltage controlled oscillation circuit, which can connect stages at a predetermined ratio and can suppress the power supply voltage dependency of the delay time of the entire delay circuit, are realized. |