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Monolithic integrated ring oscillator and frequency divider circuit and processing method thereof

A technology of ring oscillator and monolithic integration, which is applied in the direction of electronic circuit testing, instruments, measuring electronics, etc., can solve the problems of large chip area and complicated testing process, and achieve the effect of reducing the chip area and simplifying the testing process

Inactive Publication Date: 2011-02-02
无锡中科沃谱瑞科技有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In general, when testing the frequency divider, it is necessary to input the RF signal specially, so that the normal test can be performed, as follows: Image 6 As shown, this leads to a larger chip area and a more complicated testing process

Method used

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  • Monolithic integrated ring oscillator and frequency divider circuit and processing method thereof
  • Monolithic integrated ring oscillator and frequency divider circuit and processing method thereof
  • Monolithic integrated ring oscillator and frequency divider circuit and processing method thereof

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Embodiment Construction

[0026] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in further detail below in conjunction with specific embodiments and with reference to the accompanying drawings.

[0027] This single-chip integrated ring oscillator and frequency divider circuit and its processing method provided by the present invention, considering the requirements of E / D HEMT technology and frequency divider circuit test, utilize E / DHEMT materials and technology to realize The DCFL-based ring oscillator and frequency divider are monolithically integrated, and the sinusoidal signal output by the ring oscillator is used as the input signal of the frequency divider. For the monolithically integrated circuit, it is only necessary to apply a DC voltage to the input port of the ring oscillator, and then the frequency-divided output signal can be obtained at the output port of the frequency divider.

[0028] like figur...

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Abstract

The invention discloses a monolithic integrated ring oscillator and frequency divider circuit, which consists of a ring oscillator and a frequency divider based on direct coupling field effect transistor logic. In a chip, the output end of the ring oscillator is connected with the input end of the frequency divider; after applying direct current voltage to the input end, the ring oscillator oscillates, generates sinusoidal signal and outputs; the output sinusoidal signal is used as the input signal of the frequency divider, and the frequency divider outputs divided radio frequency after normal operation. The invention further discloses a processing method for the monolithic integrated ring oscillator and frequency divider circuit. The adoption of the invention can achieve the purposes of reducing chip area and simplifying test procedure.

Description

technical field [0001] The invention relates to the technical field of compound semiconductor circuits, in particular to a monolithically integrated ring oscillator and frequency divider circuit and a processing method thereof. Background technique [0002] The monolithically integrated Enhancement / Depletion Mode High Electron Mobility Transistor (E / D MHEMT) can implement Direct Coupled Field Effect Transistor Logic (DCFL), which can be used to implement high-speed logic circuits. Connect an odd number of inverters end-to-end to form a loop oscillator. When a DC voltage is applied to the input, the ring oscillator oscillates to generate a sinusoidal signal. The ring oscillator can measure the maturity of a process, and the more inverters the ring oscillator includes, the higher the maturity of the process. [0003] The function of the frequency divider is to divide the frequency of the input radio frequency (RF) signal and output it. According to different standards, it is...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R1/28G01R31/28
Inventor 徐静波张海英叶甜春
Owner 无锡中科沃谱瑞科技有限责任公司