Texas Instruments Incorporated
ROBUST NOISE IMMUNE, LOW-SKEW, PULSE WIDTH RETAINABLE GLITCH-FILTER

Abstract:

An Inter-IC interface with a glitch filter including at least two cascaded RC filters configured to compensate a signal skew of the data or clock signal received from a data communication or clock signal line, feedback switches configured to pull up or pull down a voltage at an output node of each of the at least two cascaded RC filters, and feedforward transistors configured to condition a respective switche to the feedback switches to accelerate the pull up or the pull down.