ICS181M-03LFT

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Clock/Timing products, such as clock generators, Phase-Locked Loops (PLLs) and frequency synthesizers, play an integral role in the efficient functioning of modern digital circuit applications. One such product, ICS181M-03LFT, is a 6-output Low Power Clock Generator, suitable for use in the most demanding digital applications. This article will focus on the application field, as well as the working principle, of this device.

ICS181M-03LFT is primarily applicable in communications environments where multiple clock sources are required and/or a wide frequency range is desired. In particular, it is suitable for, but not exclusive to, applications within cellular and wireless networks, video surveillance systems, base stations, Industrial, Scientific and Medical (ISM) products and Automotive applications. This device is capable of a wide range of frequencies, permitting it to handle multiple protocol standards with the same device.

As for its working principle, the ICS181M-03LFT consists of a low-frequency oscillator, a Phase-Locked Loop (PLL) and a divide-by-N frequency synthesizer. The oscillator provides an initial frequency to the PLL, which then works to maintain the same frequency and is able to rapidly adjust it if needed. The PLL also acts as a clock multiplier and can increase the input frequency by using a fractional-N frequency feedback technique. The resultant output signal is then divided by N inside the frequency synthesiser block to get the desired output frequency, under the control of a digital interface.

The ICS181M-03LFT is also capable of providing multiple clock signals, generally up to 6, simultaneously. This capability is made possible via the dual-channel PLL and the frequency synthesizer, which offer independent programming and control. Each of the six outputs are independently programmable, either via a simple programming interface or a separate user interface circuit, offering designers great flexibility for changing their system clock products on the fly.

In addition to its wide range of applications and multi-channel capability, the ICS181M-03LFT also incorporates low-power technology into its design. Integration of Low Power Cores (®) into the architecture minimises the overall power consumption of the clock generator, making it suitable for even the most power-constrained applications. Moreover, the ICS181M-03LFT is also capable of operating across a wide temperature range, making it a reliable clock solution for a wide range of applications.

To summarise, the ICS181M-03LFT is a compact, low-power clock generator, suitable for applications within the fields of communications, video surveillance, base stations, ISM and automotive applications. Its underlying working principle consists of an oscillator, a PLL and a frequency synthesizer, taking advantage of ® integration technology to minimise overall power consumption. Highly programmable, the ICS181M-03LFT is perfect for those who require significant flexibility and reliability in a clock generator.

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