49FCT806PYG8

Series:	49FCT
Packaging:	Tape & Reel (TR)
Part Status:	Obsolete
Type:	Fanout Buffer (Distribution)
Number of Circuits:	2
Ratio - Input:Output:	1:5
Differential - Input:Output:	No/No
Input:	CMOS, LVTTL
Output:	CMOS, LVTTL
Voltage - Supply:	4.75 V ~ 5.25 V
Operating Temperature:	0°C ~ 70°C
Mounting Type:	Surface Mount
Package / Case:	20-SSOP (0.209", 5.30mm Width)
Supplier Device Package:	20-SSOP
Base Part Number:	IDT49FCT806

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49FCT806PYG8 Application Field and Working Principle

49FCT806PYG8, also known as a clock buffer and driver, is a type of signal-buffering and signal-transmission component from the FCT series of clock/timing products by Fairchild semiconductor. This buffer and driver are used for a variety of signal transmission application in digital and analog circuits due to their low power consumption, fast switching response, and excellent electrical noise immunity.The 49FCT806PYG8 features three primary components that enable these various signal transmission applications. The buffer and driver integrally feature a Schmitt trigger, which is designed to act as a hysteresis comparator, a voltage-level translator, used to sustain low power operation, and a 2–4-level driver system that helps the buffer interface coupled ICs and power supplies when transmitting signals.The Schmitt trigger within the 49FCT806PYG8 is designed to improve noise margins when compared to traditional inverters. Additionally, it prevents server oscillations of output signals that are frequently seen in a variety of digital/analog systems. The Schmitt trigger is configured in a 2–4-level system that has individual input and output threshold levels. This further guarantees that output switching transitions will accurately reflect any change in the input signal level regardless of the noise margin.The voltage level translators within the 49FCT806PYG8 serve an integral role in enabling low power operation. As the buffers’ VCC supply voltage is so low, it is not an adequate differential voltage range for comparators. Thus, the voltage level translators are configured to boost the VCC voltage to mitigate the noise floor and increase the total number of analog and digital compatible input values.The integrated 2–4-level driver system within the 49FCT806PYG8 helps in the overall signal transmission. This driver features a very large range of operating supply voltages, from 1.5 V to 5 V, and level shifts for either enhanced or reduced voltage swing. This wide range of operating voltages offers an increased level of flexibility when the buffer is used in various digital/analog systems.In summary, the 49FCT806PYG8 is an excellent choice for a variety of signal transmission applications. It provides improved noise margins and voltage level translation, enabling low power operation and an increased number of compatible input values. Additionally, featuring a 2–4-level driver system for excellent signal level shifting between various ICs and power supplies makes this buffer an ideal choice.

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