8440259AK-45LF

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The 8440259AK-45LF from Texas Instruments is a Clock Generator, PLL and Frequency Synthesizer IC that is suitable for many types of applications. It is designed to provide a low-noise, stable clock signal with a wide range of frequency settings and is capable of generating frequencies up to 150MHz. In addition, the device offers a power saving mode, low phase noise and jitter, and programmable phase offset.

The device is primarily used in data communications applications such as: broadband cable modems, Ethernet routers and switches, and WLAN products. It is also used in consumer and industrial applications such as: SSDs, Set-top Boxes, monitors, consumer audio and video products, automotive in-dash systems, and military aircraft avionics. This versatility makes it ideal for a wide range of consumer, industrial and automotive applications.

The 8440259AK-45LF features a wide range of features that make it an attractive option for a variety of applications. It features an input voltage ranging from 1.5V to 4.25V and includes an adaptive power management circuit that can dynamically adjust the device’s operating frequency to reduce power consumption and maximize battery life. It also features a power-down mode that completely shuts off the clock signal output, allowing for complete power savings. Additionally, the device includes a programmable delay chain that can be used to adjust the internal clock signal\'s phase with a resolution of just a few nanoseconds.

In order to deliver these features, the 8440259AK-45LF utilizes a Phase-Locked Loop (PLL) that controls the device’s output frequency. A PLL is a type of feedback control loop system that synchronizes two or more signals by comparing their frequencies, and then automatically adjusting the oscillation frequency of the output signal to match the input signal frequency. The 8440259AK-45LF combines the PLL with an oscillator and counter, as well as programmable dividers for the output frequency and input signals. This allows for the generation of a wide range of frequency outputs.

The 8440259AK-45LF is a low-power, high-performance PLL and frequency synthesizer IC that is perfect for a variety of applications. It is capable of providing a low-noise and stable clock signal with a wide range of frequency settings, while also offering a power saving mode and programmable phase offset. This makes it an ideal choice for data communications and consumer, industrial, and automotive applications.

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