A dll power supply on fpga chip

Abstract

The invention discloses an FPGA (Field Programmable Gate Array) on-chip DLL (Dynamic Link Library) power supply. The FPGA on-chip DLL power supply comprises a reference voltage circuit, a unit gain buffer, a low-pass filter and a voltage stabilizer which are sequentially connected, wherein the reference voltage circuit is used for providing 1.2 V and 1.8 V double reference voltage, the unit gain buffer is used for improving output feedback driving and alternating current gain of the reference voltage, the low-pass filter is used for removing high frequency components of the reference voltage and stabilizing power supply voltage, and the voltage stabilizer provides a 2 V power supply for a delay inverter of a DLL and provides feedback compensation. The FPGA on-chip DLL power supply can reduce dynamic switch power of the DLL in an FPGA chip in an operating process so as to improve the working stability and reliability of the FPGA chip.

Description

technical field [0001] The invention relates to the field of microelectronics, in particular to a DLL power supply on an FPGA chip. Background technique [0002] The problem of power dissipation in integrated circuits is a thermal problem. So all problems related to heat may lead to changes in chip power consumption. But in the natural environment, heat problem is one of the most common phenomena. These problems also exist for semiconductor integrated circuits. Energy in nature is always being transformed. After the chip is powered on, a lot of electric energy has to be converted into heat energy. For relatively small chips, this converted energy will not cause fatal damage to the chip. But for large-scale chips, such as CPU, GPU, FPGA, the problem of excessive power consumption is inevitable, and the huge heat will cause serious and irreversible damage to the chip. Moreover, with the continuous advancement of semiconductor process technology and the continuous reductio...

AI Technical Summary

Problems solved by technology

Without an accurate thermal analysis, the increase in heat can easily exceed the maximum allowable junction temperature, causing irreversible damage to the chip

Images