Texas Instruments Corporation

Cosmic Circuits Private Limited

C Srinivasan

Sundararajan Krishnan

Vivek Gorakhnath Pawar

Srikanth Natarajan

Methods and systems for input voltage droop compensation in video/graphics front-end systems. The method of an embodiment of the invention captures input voltage information supplied to an Analog-to-Digital Converter (ADC) operatively coupled to a bypass capacitor in a video/graphics front-end system; calculates a droop in the input voltage in ADC due to a charge sharing between an input sampling capacitor of the ADC and the bypass capacitor; and compensates for the value of the bypass capacitor using an output of the ADC. Embodiments of the invention provide an improved freedom in the choice of off-chip bypass capacitance in video/graphics front-end systems.

Method and system for input voltage droop compensation in video/graphics front-ends

A simulator for simulating a digital circuit, includes an input circuit for inputting a test patterns to describe the characteristics of the digital circuit and for inputting input signals to test the operation of digital circuit and output signals to describe the expected output of the digital circuit based on the input signals, an applying circuit to apply the input signal to test the operation of the digital circuit to the test patterns to describe the characteristics of the digital circuit to form a simulated output signal to indicate a response based on the test pattern, a comparator circuit to compare the simulated output signal with the output signal to describe the expected output of the digital circuit based on the input signals to determine a difference between the simulated output signal and the output signals, wherein the operation of the simulation is stopped if the difference is greater than a predetermined difference.

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Bengaluru, India

C Srinivasan