IDT5V993A-7QGI

Differential - Input:Output:	No/No
Base Part Number:	IDT5V993A
Supplier Device Package:	28-QSOP
Package / Case:	28-SSOP (0.154", 3.90mm Width)
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C
Voltage - Supply:	3 V ~ 3.6 V
Divider/Multiplier:	Yes/Yes
Frequency - Max:	85MHz
Series:	TurboClock™
Ratio - Input:Output:	1:8
Number of Circuits:	1
Output:	LVTTL
Input:	LVTTL
PLL:	Yes with Bypass
Type:	PLL Clock Driver
Part Status:	Obsolete
Packaging:	Tube

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The IDT5V993A-7QGI is a 14-stage differential PLL clock Generator designed for high frequency clock multiplication from an industry standard low-frequency clock source with minimal jitter. As part of the Universal Clock Generator family, this device can provide a selection of high-frequency output clocks for use in digital systems. With the industry’s widest array of programmable multiplication ratios, digital divider options, multiple reference clock input types and multiple frequency outputs, the IDT5V993A-7QGI is the most versatile and best-in-class differential PLL clock generator available.

Overview

The IDT5V993A-7QGI is a low-skew, high-frequency clock generator that is designed to facilitate frequency multiplication of multiple clock sources. It includes a Phase-Locked Loop (PLL) circuit, which provides very low jitter and high accuracy of output clock frequency by tightly locking a selected output frequency to a reference clock frequency. The device is designed with a flexible configuration that enables multiple frequency ratios and offers new capabilities for system designers to maximize flexibility and performance. The PLL can operate from a wide range of frequencies and provides frequency multiplication ratios up to 1:100.

Application Fields

The IDT5V993A-7QGI is suitable for a variety of applications requiring a high frequency and accuracy clock generator, such as digital receivers and transmitters, network synchronization, clock-jitter removal and noise reduction, embedded systems, and ASIC design. It can be used for clock and data recovery in applications such as high speed data converters, serial communications, and baseband processing. The device is also well suited for clock distribution in systems such as networking, military and aerospace, video broadcast and surveillance, and test and measurement equipment.

Working Principle

The IDT5V993A-7QGI is based on a differential PLL architecture for ultra-low-jitter clock generation. The PLL architecture consists of a Voltage Controlled Oscillator (VCO) driven by the feedback from a phase frequency detector (PFD). A 14-stage differential dividers allows for the flexibility to drive multiple frequency outputs, while maintaining a very low jitter.The PFD compares the phase of the reference clock with the feedback signal from the VCO, and adjusts the output frequency of the VCO to match that of the reference clock. The divided clock output in turn, provides the feedback signal to the PFD. An internal phase interpolator is also used, which allows for the interpolation of additional phase values within the divided clock output to reduce phase noise.The IDT5V993A-7QGI allows for frequency multiplication ratios between 1 and 100, depending on the frequency of the reference clock input. The flexible configuration of the device also allows for multiple reference clock inputs, including single-ended or differential source clocks. The multiple frequency output option of the IDT5V993A-7QGI enables the device to be used for clock distribution in multiple applications.

Conclusion

The IDT5V993A-7QGI is a robust and versatile clock generator designed for high frequency clock multiplication from industry standard low frequency clock sources with minimal jitter. It is an ideal solution for system designers looking for a low-skew, high-accuracy clock generator with multiple frequency outputs. The PLL architecture provides a wide frequency multiplication range and a flexible configuration, allowing designers to maximize flexibility and performance in their applications.

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