INJECTION-LOCKED FREQUENCY DIVIDER USING CROSS-COUPLED COMPLEMENTARY TRANSISTORS AND TRANSFORMER COUPLING

摘要

Injection synchronizing frequency divider of the present invention, the first nose end and the second nose end is the mutual inductance that is coupled transformer, the drain is connected to one end of the first nose end, PMOS transistor source is connected to a power source, a drain said primary nose is connected to the other end of the one end, the source being coupled to ground, NMOS transistor in which the gate is connected to the drain of the PMOS transistor, the drain is the second nose and one end and the connection, the gate is the PMOS transistor and the NMOS being respectively connected to the transistor gate, the input source is connected to ground, is connected in feedback a pair of the output stage is formed on the drain (Feedback) transistor and the first nose end and parallel, the input signal is input to the gate includes a transistor, the PMOS transistor has a gate connected with a drain of the NMOS transistor is cross-coupled to the NMOS transistor. According to the present invention, in the oscillator core by using a transformer coupling by reducing the influence of the parasitic capacitor and the load capacitor of the inductor and the transistor, there is an effect that can operate at high frequencies. ;