Circuit oscillator for clock signal generation and control

Abstract

The invention discloses a circuit oscillation device for clock signal generation and control. The device takes a control and bias circuit module as the core, and its signal output terminal is connected with a reference generation circuit module; its signal output end is also connected with an oscillation generation circuit module and a clock output circuit module; the output of the reference generation circuit module is also connected to an oscillation generation circuit module and a clock output circuit module; a modular design is adopted, which has a simple structure, low power consumption, and reusability, and can be used in the chip Internally integrated, it can generate and control the clock signal, and it also has the advantages of cost saving, improved circuit integration, stability and reliability; the oscillator circuit can generate 460.8kHz clock, support chip selection effective function, and can support external clock directly Input and / or use an externally connected crystal to generate a clock with the advantage of two modes of operation.

Description

technical field [0001] The invention relates to the technical field of integrated circuit design, in particular to a circuit oscillation device for clock signal generation and control. Background technique [0002] In recent years, with the rapid development of the domestic integrated circuit industry, the technological level of integrated circuit production has been continuously improved, and IC design technology has been continuously innovated. . At present, the design of digital-analog hybrid integrated circuits has become a difficult point and a hot spot in the integrated circuit design industry. Now almost all digital circuits are designed with sequential circuits. The clock (CLOCK) is an essential signal in all sequential circuits. The clocks of most digital circuits are directly input from the outside or embedded in the circuit. Phase-locked loop (PLL) IP However, the phase-locked loop IP has disadvantages such as high cost, complex structure, and high power consump...

AI Technical Summary

Problems solved by technology

Now almost all digital circuits are designed with sequential circuits. The clock (CLOCK) is an essential signal in all sequential circuits. The clocks of most digital circuits are directly input from the outside or embedded in the circuit. Phase-locked loop (PLL) IP However, the phase-locked loop IP has disadvantages such as high cost, complex structure, and high power consumption.

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