74HC7046AN,112

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Circuits that are designed to generate, maintain, and disseminate a timing signal are known as clock generators. Additionally, to be used in a particularly device, clocks must adhere to certain pulse width and frequency criteria. One popular, contemporary device that is frequently used in this application is the 74HC7046AN,112 in which clock generators, PLLs (Phase Locked Loops) and frequency synthesizers are all integrated. An understanding of the fundamentals of its application field and working principle can go a long way in ensuring proper use and optimization of its circuit.

The 74HC7046AN,112 is an advanced yet low cost programmable clock device. In addition to having various features which increase its effectiveness and marketability, the 74HC7046AN,112 is able to generate a range of carefully managed low frequency clocks and various clock outputs. The device includes several different convenient features and characteristics; such as, an on-chip Digital Phase Locked Loop (DPLL), an integrated Programmable Logic Block (PLB) and an adjustable divide-by-divider. The device also offers different preset oscillator reference frequencies of varying frequencies in order for users to conveniently generate multiple required clock outputs. With the ability to offer a maximum frequency of 200 MHz, the 74HC7046AN,112 has a wide variety of applications in clock generation, timing and frequency synthesis.

The main application field for the 74HC7046AN,112 is for the user to create multiple synchronous clock outputs of distinct frequency characteristics. Utilizing an input signal, the integrated DPLL generates a modulated signal at a rate that is determined by the output of the PLB. The signal then enters the Divider, which is adjustable and can be programmed in order to split the signal into multiple, different frequency outputs while maintaining their synchronous characteristics. When used in a system, the 74HC7046AN,112 is able to employ numerical control frequencies as provided by the user in order to generate desired clock outputs. Because of the fact that the device is adjustable and can incorporate numerical control, it is quite popular in systems such as Spread Spectrum Clocking (SSC) in order to reduce Electromagnetic Interference (EMI). Not to mention, its outstanding features and low costs make it quite popular in animation systems and other applications where sophisticated timing and frequency output are critically needed.

In order to properly use the device, users should understand the fundamentals of its working principle. The 74HC7046AN,112 works using a divider/serparator circuit, a PLL block and a Digital Logic Block. The signal coming from the input is initially injected into the divider/separator which cuts this signal into several output with different frequency and synchronous characteristics. This signal is then applied to both the PLL and the Digital Logic Block. In the PLL block, the signal is modulated while the Digital Logic Block is used to execute the user programmed numerical control on the output. At the end of this process, the output of the Digital Logic Block is divided down by the output of the PLL — whereby finally resulting in the output clocks which adhere to the user specified frequency criteria.

Through the understanding of 74HC7046AN,112 is application field and working principle, it should be clear why this device is highly prized for its clock-generating and frequency synthetic capabilities. This understanding allows the user to take advantage of the device\'s sophisticated and adjustable features, as well as its low cost. With its flexible frequency range, adjustable divider and various available features, the 74HC7046AN,112 is a trusted and cost-effective source of clock generators, PLLs and frequency synthesizers.

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