MAX3877EHJ-T

Ratio - Input:Output:	2:2
Base Part Number:	MAX3877
Supplier Device Package:	32-TQFP-EP (5x5)
Package / Case:	32-TQFP Exposed Pad
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C
Voltage - Supply:	3 V ~ 3.6 V
Frequency - Max:	2.488Gbps
Differential - Input:Output:	Yes/Yes
Series:	--
Number of Circuits:	1
Output:	CML
Input:	TTL
Main Purpose:	SONET/SDH
PLL:	Yes
Part Status:	Obsolete
Packaging:	Tape & Reel (TR)

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Introduction

The MAX3877EHJ-T is an application specific integrated circuit (ASIC) designed for clock/timing applications. It was developed by Maxim Integrated Solutions, a leading supplier of industry standard clocks and timing solutions. The MAX3877EHJ-T has a wide range of applications, from providing an accurate time base for high-speed clock networks to synchronizing multiple clocks used in consumer electronics and other consumer applications.

Applications

The MAX3877EHJ-T has a wide range of applications that include consumer products, communication systems, industrial systems, and instrumentation. In consumer products, it is often used for synchronizing multiple clocks that run different applications or for setting the proper time on digital clocks. In communication and industrial systems it is used to provide an accurate timing reference for various applications. Some of the applications include timing circuits for networking, telecommunications, and process control systems. In instrumentation, it is often used for monitoring and synchronizing multiple sensors.

Features

The MAX3877EHJ-T has a wide range of features that make it a versatile and reliable ASIC for clock and timing applications. Some of its features include a wide operating temperature range, low power consumption, and flexibility in clock frequency selection. It also has a low jitter and excellent jitter suppression capability, allowing it to precisely synchronize different clock sources. The MAX3877EHJ-T also has a wide selection of clock output modes, including asynchronous, synchronous, and universal serial bus (USB).

Working Principle

The MAX3877EHJ-T has an integrated digital phase locked loop (DPLL) circuit for controlling the clock frequency. The DPLL is a feedback circuit that uses a combination of hardware logic, analog circuitry, and digital circuitry to precisely control a clock signal’s frequency and phase. The MAX3877EHJ-T uses this DPLL circuit to control the clock frequency and monitor the accuracy of the clock signal.The DPLL circuit has two main components, the phase locked loop (PLL) and the digital loop filter (DLF). The PLL is responsible for detecting and locking onto the frequency of an incoming signal, such as a signal coming from a quartz crystal oscillator. It then outputs a signal with a frequency that is controlled by the other component, the DLF. The DLF is a filter the is used to adjust the PLL signal so that its frequency closely matches that of the reference signal.

Conclusion

The MAX3877EHJ-T is a reliable, flexible, and powerful ASIC for clock and timing applications. Its wide range of features and its integrated DPLL circuit allow it to precisely control and synchronize different clock sources. This makes it ideal for a wide variety of applications in consumer products, communications systems, industrial systems, and instrumentation.

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