This page describes how I did that. I used that signal to drive my 1 PPS circuit. However, TP5 in the front portion of the main board has a nice 10MHZ sine wave available, which unfortunately is riding on top of a DC bias voltage. I used a piece of RG cable to bring the signal from TP5 back to my circuit. I built some buffer circuitry on a piece of perf board.
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A MAX. The internal circuit is composed of 3 stages including buffer output, which enables high noise immunity and stable output. All inputs and outputs are equipped with protection circuits against static discharge, giving them 2KV ESD immunity and transient excess voltage.
Functional operation under these conditions is not implied. Refer to Test Circuit. Average operating current can be obtained by the following equation. However, STMicroelectronics assumes no responsibility for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications mentioned in this publication are subject to change without notice.
This publication supersedes and replaces all information previously supplied. STMicroelectronics products are not authorized for use as critical components in life support devices or systems without express written approval of STMicroelectronics.
74AC04: Hex Inverter