SY89426JY

Differential - Input:Output:	No/Yes
Base Part Number:	SY89426
Supplier Device Package:	28-PLCC (11.5x11.5)
Package / Case:	28-LCC (J-Lead)
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C
Voltage - Supply:	4.75 V ~ 5.25 V
Divider/Multiplier:	Yes/No
Frequency - Max:	622.08MHz
Series:	Precision Edge®
Ratio - Input:Output:	1:2
Number of Circuits:	1
Output:	PECL, TTL
Input:	TTL
PLL:	No
Type:	Clock/Frequency Synthesizer
Part Status:	Obsolete
Packaging:	Tube

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SY89426JY Clock/Timing - Clock Generators, PLLs, Frequency Synthesizers

The SY89426JY is an integrated circuit (IC) designed for use in clock/timing applications. This IC forms the heart of a comprehensive frequency synthesizer architecture, providing the critical functions of a high-performance phase locked loop (PLL), a Voltage Controlled Crystal Oscillator (VCXO), a clock generator, and a frequency synthesizer. It is widely used in a variety of digital and communication applications such as digital TVs, set-top boxes, gaming, routers, and switches.This IC consists of a complex architecture that combines several functions. It is designed to be used in conjunction with a high-performance oscillator. The oscillator provides the input clock signal, which is then processed by the SY89426JY to generate the output clock signals necessary for the application. The PLL within the IC provides the frequency synthesis, enabling the chip to produce the desired output frequency. The VCXO is used to control the output frequency by adjusting the reference frequency.The SY89426JY also includes an output driver, a reference clock divider, a frequency discriminator and a frequency synthesizer. The output driver is responsible for driving the clock signal onto the output pins. The reference clock divider divides the input clock frequency in order to produce the reference frequency necessary for the PLL. The frequency discriminator measures the phase difference between the input and output signals. The frequency synthesizer adjusts the output frequency based on this phase difference.The SY89426JY also includes several other features such as an adjustable phase-frequency detector, jitter attenuator and spread spectrum oscillator. The phase-frequency detector allows for adjustment of the tracking range and damping of the phase locked loop. The jitter attenuator reduces the effects of jitter on the output clock frequencies. The spread spectrum oscillator further reduces the noise produced by the IC.The SY89426JY provides a powerful and flexible frequency synthesizer solution for clock generation and timing applications. It is designed to provide high performance with low power consumption, making it an ideal solution for a variety of digital and communication applications.

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