A kind of output circuit and electronic device

Abstract

The invention provides an output circuit and an electronic device. The output circuit includes: a first output stage circuit, the first output stage circuit has a first input terminal and a first output terminal, the first input terminal is used to connect with the first input signal, and the first output terminal Connected to the output end of the output circuit, a first coupling capacitor is formed between the first input end and the first output end; a second output stage circuit, the second output stage circuit has a second input end and a second output terminal, the second input terminal is used to connect with the second input signal, the second output terminal is connected to the output terminal of the output circuit, the second input terminal and the second output terminal A second coupling capacitance is formed therebetween; wherein, the first coupling capacitance and the second coupling capacitance have opposite coupling effects. The output circuit can improve the burr at the output end and reduce the influence of the burr on the circuit. The electronic device has similar advantages.

Description

technical field [0001] The invention relates to the technical field of semiconductor integrated circuits, in particular to an output circuit and an electronic device. Background technique [0002] In integrated circuit applications, CMOS circuits occupy an important position. In the CMOS circuit, the delay is related to the length of the connection and the number of logic units, and is also affected by the manufacturing process, operating voltage, temperature and other conditions of the device, so the high and low level conversion of the signal also requires a certain transition time , so due to the existence of these two factors, when the level value of the multi-channel signal changes, the output of the combinational logic has a sequence at the moment of the signal change, and it does not change at the same time. In this process, some errors often occur spikes, these spikes are called "glitches". Generally, these burrs will be completely retained and passed to the next l...

AI Technical Summary

Problems solved by technology

For this reason, it is often necessary to use some resistors and capacitors to form a circuit that reduces burrs to control the burrs generated during signal transmission, otherwise some sensitive circuits will cause logic errors or functional errors due to the existence of burrs

However, adding or subtracting capacitance and resistance in the circuit to remove burrs will increase the circuit area, which is not conducive to circuit integration and will increase the cost

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