IDT5V2528PGGI

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The IDT5V2528PGGI is an integrated clock generator designed for modern high-speed digital designs. It is a breakthrough product in the category of Clock/Timing: Clock Generators, PLLs, Frequency Synthesizers.

The IDT5V2528PGGI offers a unique combination of low power dissipation, wide frequency coverage, low jitter and low phase noise while combining integrated functions such as a low drop out regulator and programmable output divider/multiplier. This unique device integrates all of these features on one chip, reducing system cost and circuit board size.

The IDT5V2528PGGI is intended for applications requiring a synchronous output clock frequency in the range of 10 - 2528 MHz with low jitter. Typical applications include making up a part of a clock source for high speed video and audio data transfer, as well as test equipment requiring precision clock sources with selectable frequencies. It can also be used in applications such as processor, protocol and point-to-point communication clock solutions.

Working Principle of the IDT5V2528PGGI

The IDT5V2528PGGI is a highly-integrated clock generator that provides a wide output clock frequency range of 10 to 2528 MHz. It consists of four main blocks: a Phase-Locked Loop (PLL) circuit, an output divider/multiplier, a low drop out regulator, and a spread spectrum circuit.

The PLL circuit includes a phase detectors, charge pump, loop filter, and Voltage Controlled Oscillator (VCO). This circuit is used to generate an output clock frequency that is locked to the reference clock frequency being applied to the input of the chip. This reference clock can be either an external clock signal or a clock signal generated internally. The output divider/multiplier is used to divide/multiply the output clock frequency from the PLL, allowing for a wide range of output clock frequencies.

The low drop-out regulator is designed to provide an adjustable voltage to the chip that can be set from 0.8V to 3.3V. This adjusts the VCO frequency for the PLL portion of the chip, so that the output frequency can be fine-tuned. The spread spectrum circuit is designed to reduce Electromagnetic Interference (EMI) by adding slight variation to the output clock frequency. This slight variation not only reduces EMI but also reduces the effects of any delay caused by the device.

The IDT5V2528PGGI is a low power, high performance device that integrates four distinct functional blocks and enables flexible design options for high speed clock solutions. It offers a wide range of frequency selections and a low jitter, low phase noise output for digital designs.

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