A continuous-time linear equalizer with adjustable power consumption

Abstract

The invention discloses a continuous time linear equalizer with adjustable power consumption, which comprises a continuous time linear equalizer circuit CTLE and a MOS transistor bias circuit Bias2 connected with the continuous time linear equalizer circuit CTLE, wherein the MOS transistor bias circuit Bias2 is composed of the A circuit part and the B circuit part connected with the A circuit part, the B circuit part is composed of several sub-circuits connected in sequence, and the first sub-circuit in the several sub-circuits is connected with the A circuit part and the second sub-circuit in turn, The nth subcircuit in the plurality of subcircuits is connected to the continuous time linear equalizer circuit CTLE and the n-1th subcircuit in turn. Beneficial effects: on the premise that the structure and function of the continuous-time linear equalizer remain unchanged, the designed bias circuit is used to adjust the static bias current of the equalizer to realize adjustable power consumption of the equalizer.

Description

technical field [0001] The invention relates to the technical field of integrated circuit design, in particular to a continuous time linear equalizer with adjustable power consumption. Background technique [0002] With the development of the times, the requirements for the power consumption of wired circuits are becoming more and more stringent. The continuous-time linear equalizer is essential for improving the eye diagram performance of the receiving end for links with large transmission loss, and its power consumption has attracted much attention. [0003] After the commonly used continuous-time linear equalizer structure is determined, its bias current is a fixed value, and the power supply voltage needs to be adjusted to adjust the power loss. However, the MOS transistor switch has a certain on-resistance, and the current flowing through it causes a voltage drop on the switch, which compresses the voltage margin, so a higher power supply voltage is required. Therefore...

AI Technical Summary

Problems solved by technology

[0006] Aiming at the problems of traditional continuous-time linear equalizers with fixed bias current or small adjustment range, low precision, low energy utilization rate, and difficulty in realizing the low power consumption, high efficiency and energy-saving requirements of continuous-time linear equalizers in the Internet of Things, in order to improve the continuous time The energy utilization rate of the linear equalizer and the accuracy of adjusting the bias current are improved. The present invention proposes a continuous-time linear equalizer with adjustable power consumption. The continuous-time linear equalizer can compensate for the constant power consumption of the traditional continuous-time linear equalizer. The disadvantage of low energy utilization rate meets the needs of the Internet

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