Trimming circuit and integrated chip

Abstract

The embodiment of the invention discloses a trimming circuit and an integrated chip. The trimming circuit comprises a sampling circuit, a logic processing circuit, a fuse burning circuit, an amplification output circuit and a parameter adjusting circuit; the sampling circuit collects a clock signal and a data signal to the logic processing circuit according to the detection signal, and one output end of the logic processing circuit is connected with a fuse burning circuit in a one-to-one correspondence manner; the amplification output circuit is used for amplifying the trimming control signal output by the fuse burning circuit and outputting the trimming control signal to the parameter adjusting circuit, and the parameter adjusting circuit adjusts parameters of the parameter adjusting circuit according to the amplification signal output by the amplification output circuit so as to trim the output parameters of the chip. Compared with the prior art, the technical scheme provided by the embodiment only needs to use one function pin of the chip to control the trimming value of the chip, and the fuse burning circuit needing burning is determined through the logic processing circuit, so the parameter adjusting circuit is controlled to output an accurate trimming signal, and the trimming precision of the chip is ensured.

Description

technical field [0001] The embodiments of the present invention relate to the technical field of integrated circuits, in particular to a trimming circuit and an integrated chip. Background technique [0002] With the rapid development of integrated circuit technology, the performance requirements of circuits are getting higher and higher. Therefore, trimming technology has become a necessary means to realize high-precision integrated circuits. [0003] At present, the adjustment circuit is usually used to adjust the packaged integrated chip. However, the adjustment circuit in the prior art needs to use multiple functional pins to adjust the integrated chip, and it also needs to add additional control pins to adjust the integrated chip. To adjust the signal latch, to a certain extent, put forward higher requirements for the type of integrated chip. Contents of the invention [0004] Embodiments of the present invention provide a trimming circuit and an integrated chip, so ...

AI Technical Summary

Problems solved by technology

[0003] At present, the adjustment circuit is usually used to adjust the packaged integrated chip. However, the adjustment circuit in the prior art needs to use multiple function pins to adjust the integrated chip, and it also needs to add additional control pins to adjust the integrated chip. Adjustment signal latch, to a certain extent, puts forward higher requirements for the type of integrated chip

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