ACS8947T

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ACS8947T ICs belong to the clock/timing - application specific ICs, and these products have lots of potential applications from automotive to consumer electronics. The ACS8947T contains a 3.2V and 0.45ns delay mode reference clock, a highly accurate PLL, a power management and system reset unit, and other features.

The ACS8947T ICs use a single crystal oscillator as the reference clock source and generate many different frequency outputs. This is usually achieved by using a 3.2V Delay Mode Reference Clock (DMR Clock). The DMR Clock helps the IC to achieve excellent clock accuracy, ensuring that the generated clock has low jitter and minimal frequency variations. The reference clock can also be used to generate output clocks that operate at frequencies lower than the primary clock frequency. Additionally, the PLL also ensures that the reference clock frequency remains constant over temperature and voltage changes.

The PLL inside the ACS8947T supports multiple types of output frequencies, such as a sine-wave, a square-wave, a sawtooth-wave, or a ramp-wave. The PLL utilizes a fully differential design that helps to reduce jitter. The IC also features two uncommitted MCUs, two uncommitted oscillators, and three uncommitted PLLs. In addition, the IC offers a clock reset and power-on reset functions as well as an onboard voltage regulator to reduce power consumption.

Aside from the high accuracy of the PLL, the IC also offers user-configurable parameters, such as the comparison period, comparator settings, and offset settings. The external input of the IC is also adjustable to suit various types of external clock inputs or signal inputs. The IC also has an onboard phase-frequency detector to detect timing differences between the input signal and the generated output clock. Furthermore, the IC also supports clock synchronization, so that the external unit can remain in sync with the onboard system for multiple clocks.

The ACS8947T ICs are also very power efficient and can run on low power rails. The IC also offers a range of diagnostic features, such as short-circuit protection, underflow protection, overvoltage protection, and peak current protection. Moreover, the IC has an onboard interrupt controller, which can be used to trigger an external interrupt when a certain alarm condition is detected.

To summarize, the ACS8947T ICs are a versatile application specific clock/timing ICs that offer a wide range of features. The IC is suitable for applications from automotive to consumer electronics and offers a reliable, high accuracy solution for clock calibration and synchronization. The onboard power-management and system reset unit ensures low power consumption, while the PLL ensures minimal jitter. Furthermore, the IC also offers diagnostic features, as well as user-configurable parameters, to provide flexibility and scalability for various projects.

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