Single pulse generation circuit and level conversion circuit

A technology for generating circuits and converting circuits, which is applied in the direction of electric pulse generator circuits, pulse generation, electric pulse generation, etc., can solve the problems of large transmission delay, slow discharge speed, easy distortion of signal transmission, etc., and achieve faster falling edge speed , shorten the discharge delay, improve the integrity of the effect

Active Publication Date: 2019-08-16
SHANGHAI AWINIC TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In view of this, the present invention provides a single pulse generating circuit and a level conversion circuit to solve the problem that the port parasitic capacitance of the level conversion circuit in the prior art cannot be ignored during

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  • Single pulse generation circuit and level conversion circuit
  • Single pulse generation circuit and level conversion circuit
  • Single pulse generation circuit and level conversion circuit

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Embodiment Construction

[0050] As described in the background art, in the existing level conversion circuit, due to the presence of parasitic capacitance, the discharge speed is slow, and the falling edge transmission delay is large, which causes the problem of signal transmission distortion, which makes the level conversion circuit in the prior art It is not suitable for high-speed level conversion applications.

[0051] The inventor found that the reason for the above phenomenon is that figure 1 As shown, figure 1 It is a schematic structural diagram of an existing level conversion circuit. The level conversion circuit includes: a first signal input terminal A_Port, a second signal input terminal B_Port, a first port pull-up tube MP01, and a second port pull-up tube MP02, the first voltage domain VCCA, the second voltage domain VCCB, the first single pulse generation module 01, the second single pulse generation module 02, the signal transmission tube MN01, and the gate end bias that controls the on an...

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Abstract

The invention provides a single pulse generation circuit and a level conversion circuit. The single pulse generation circuit is applied to a level conversion circuit comprising a first signal input end, a second signal input end and two pull-down tubes, and comprises a port detection module, a bidirectional detection trigger module, a single pulse generation module and a power supply voltage module; the method comprises the following steps: detecting whether any one of a first signal input end and a second signal input end of a level conversion circuit is overturned from a high level to a lowlevel; after the falling edge is detected by the single pulse generation circuit,generating a high-level pulse signal to open a pull-down tube of the level conversion circuit, and increasing the falling edge speed of an output port, so that in the signal transmission process, the discharge delay on a parasitic capacitor is shortened, the problem of signal transmission distortion is avoided, and the signal integrity is improved.

Description

Technical field [0001] The present invention relates to the field of integrated circuit technology, in particular to a single pulse generating circuit and a level conversion circuit. Background technique [0002] Level conversion chips are one of the common chips in integrated circuits, which are widely used in systems such as data transmission, logic control, and digital-to-analog conversion. Its function is to transmit the logic level signal under the lower (or higher) voltage domain at one end to the higher (or lower) voltage domain at the other end, and to minimize the transmission delay during the transmission process while maintaining the signal Completeness. [0003] In order to reduce the delay of level conversion, it is usually necessary to add a fast pull-up tube at the output end. In order to reduce the power consumption caused by the continuous conduction of the pull-up tube, a single pulse generation module is usually used to control the turn-on and turn-off of the p...

Claims

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Application Information

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IPC IPC(8): H03K3/015H03K3/021H03K19/003H03K19/0185H03K19/20
CPCH03K3/015H03K3/021H03K19/018507H03K19/00315H03K19/00323H03K19/20
Inventor 董渊王云松程剑涛杜黎明孙洪军乔永庆
Owner SHANGHAI AWINIC TECH CO LTD
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