5991A-5JGI8

Differential - Input:Output:	No/No
Base Part Number:	IDT5991A
Supplier Device Package:	32-PLCC (14x11.46)
Package / Case:	32-LCC (J-Lead)
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C
Voltage - Supply:	4.5 V ~ 5.5 V
Divider/Multiplier:	Yes/Yes
Frequency - Max:	100MHz
Series:	TurboClock™
Ratio - Input:Output:	1:8
Number of Circuits:	1
Output:	TTL
Input:	TTL
PLL:	Yes with Bypass
Type:	PLL Clock Driver
Part Status:	Obsolete
Packaging:	Tape & Reel (TR)

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Introduction

The 5991A-5JGI8 is a high performance clock generator designed to provide accurate and repeatable synchronous cycling of multiple clock inputs. It is a low-cost, low-profile device incorporating clock jitter attenuation and adjustable frequency diagnostic functions. This device can be used to generate clocks with precision time and frequency in a variety of embedded designs.

Application Field

The 5991A-5JGI8 is a versatile clock generator and synthesizer primarily designed for use in communications, broadcast and audio-video applications. It is a stable, low-jitter clock generator with an incredibly wide frequency range from 1Hz to 16kHz. The device provides a number of clock inputs and output port widths ranging from 70 MHz up to 4 GHz. This device is ideal for any applications requiring multiple clock inputs from different sources, as its precision timing and frequency diagnostic functions allow for superior signal accuracy and synchronization.In addition to the applications mentioned, this device is also useful in data center architectures, telecom infrastructure, mobile base stations and industrial network applications. Its precise and reliable frequency synthesizing features make it a great solution for systems that require an accurate time-transfer protocol and higher quality clock signal performance.

Working Principle

The 5991A-5JGI8 uses Programmable Logic Cells (PLCs) to generate an accurate and repeatable clock signal. PLCs are configured in a special way to minimize jitter and provide very stable frequencies. The device has an internal clock reference oscillator, which is used as the reference signal from which all other signals are derived.The device uses a digital phase lock loop (PLL) to generate clock signals with higher frequency and accuracy than traditional clock generators. The PLL works by locking onto an external source signal, such as a crystal oscillator, and then re-generating this signal from the internal clock reference oscillator. The output of the PLL will then be a precise clock signal with very low jitter, resulting in higher accuracy.

Conclusion

The 5991A-5JGI8 clock generator is a high performance device designed to provide accurate and repeatable synchronous cycling of multiple clock inputs. Its low-cost and low-profile design makes it a perfect choice for a variety of embedded designs, ranging from communications and broadcast applications up to data center architectures, telecom infrastructure, mobile base stations and industrial network applications. The device features a programmable logic cell (PLC) based clock generation system, which minimizes jitter, providing very stable and precise frequencies. Furthermore, the PLL, leveraging an external crystal oscillator, results in a precise and accurate clock signal with very low jitter.

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