Voltage-controlled oscillator based on TSV vertical switch

Abstract

The invention discloses a voltage-controlled oscillator based on a TSV vertical switch, and the oscillator comprises a power supply VDD; the power supply VDD is connected with an input end of a Wheatstone bridge inductor M1 and an input end of a Wheatstone bridge inductor M2 through a wire, an output end of the M1 is connected with an output end of a varactor C1, a gate electrode of an MOS4 and a drain electrode of an MOS3, and an output end of the M2 is connected with an output end of a varactor C2, a gate electrode of the MOS3 and a drain electrode of the MOS4. The input ends of the C1 and the C2 are connected with a capacitor control power supply Vctr3, the source electrode of the MOS3 is connected with the source electrode of the MOS4 and the drain electrode of the MOS5 through wires, the gate electrode of the MOS5 is electrically connected with a bias power supply Vb through a wire, and the source electrode of the MOS5 is grounded. According to the invention, a shorter interconnection line is realized through the TSV so as to reduce power consumption and delay, the inductance value of the inductance circuit is adjusted through turn-on or turn-off of the TSV vertical switch, and frequency adjustment of the voltage-controlled oscillator is realized in cooperation with the varactor.

Description

technical field [0001] The invention belongs to the technical field of three-dimensional integrated circuits and relates to a voltage-controlled oscillator based on a TSV vertical switch. Background technique [0002] With the development of microelectronics technology, the size of microelectronic devices continues to decrease according to Moore's law, the integration level of integrated circuits is gradually increasing, and the performance of electronic products has been improved unprecedentedly. However, as the size is reduced to the submicron or even nanometer level, the feature size of the transistor gradually reaches the physical limit, the quantum effect and the short channel effect become more and more serious, and the design, performance and reliability of the integrated circuit are seriously affected. . As one of the core modules in the radio frequency system, the voltage controlled oscillator (VCO) directly affects the performance, reliability, stability and cost ...

AI Technical Summary

Problems solved by technology

The performance and reliability of the circuit have been seriously affected, so it is necessary to find new design ideas to solve the above problems

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