ICS581G-01

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The ICS581G-01 is a clock/timing frequency synthesizer, which is designed for use in a variety of frequency-dependent applications. It is a programmable PLL synthesizer, meaning that it can be programmed to output a variety of frequencies from a single clock input. The ICS581G-01 provides a wide-frequency range up to 530 MHz output and includes a low-jitter VCO, PLL, and fractional-N synthesizer on a single integrated device.

The design of the ICS581G-01 is based on the idea of using a single signal source, such as a crystal oscillator, as the reference frequency for its operation. This signal is then used to generate other clock signals of higher or lower frequencies. The ICS581G-01 offers a wide frequency range and is ideal for applications where high frequency resolution is required, such as in SONET-SDH, OTN, Fibre Channel, and general communications systems.

The ICS581G-01 supports a wide range of frequencies, from 20 MHz to 530 MHz, covering all the common communications requirements. The product is capable of generating frequencies with a minimum jitter of less than 25 ps. This makes it suitable for applications requiring very low jitter outputs, such as high-speed communication systems.

When designing with the ICS581G-01, the clock generator can be programmed to run in either a static or dynamic mode. In static mode, the desired frequency is set upfront by the user and once it is set, it remains constant indefinitely. In dynamic mode, the user can switch between different frequencies on the fly. This flexibility allows designers to select the best frequency to suit the application needs.

The ICS581G-01 utilizes a PLL to take the reference frequency and generate other clock outputs of higher or lower frequencies. The device can be programmed to support a variety of frequency synthesis techniques, including Fractional-N Synthesis, Multi-Modulation Synthesis (MMS), and Spread-Spectrum Synthesis (SSS). Fractional-N Synthesis provides the most customizable and accurate frequency synthesis, thereby allowing for higher-speed communication systems. Additionally, the MMS technique is useful for applications that require the generation of multiple frequencies from a single reference. Finally, SSS is useful for applications where low-noise operation and low-emissions are desired.

The ICS581G-01 has a wide range of inputs and outputs, including four differential clock outputs, four single-ended clock outputs, five programmable power down modes, and support for a low-noise reference. It also features a fully integrated control interface, which allows the user to program and control the PLL. The ICS581G-01 also features an integrated start-up circuit and a low-current mode, so that it can be used in a variety of power-sensitive applications.

The ICS581G-01 is a versatile frequency synthesizer and a great choice for applications demanding frequent changes in frequency, low jitter and wide frequency ranges. Its programmability and wide-ranging input/output capabilities make it suitable for various types of applications, from communications systems to high-speed test and measurement solutions.

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