8737AGI-11LFT

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Introduction to 8737AGI-11LFT Clock/Timing - Clock Buffers, Drivers

The 8737AGI-11LFT clock/timing device is one of the many components of the industry-leading Marvell PXA Technology, a family of popular processors used in a variety of mobile devices, ranging from tablets and smartphones, to smaller connected embedded applications.

This device is part of the clock buffer and drivers family, which consists of devices that control the phase, frequency and amplitude of the clock signals that drive various system functions. Clock buffers and drivers allow the various subsystems in a system to operate at different frequencies, while still maintaining the correct timing between them.

Application Field

The 8737AGI-11LFT clock/timing device is designed for use in high-performance, low-power environments, such as mobile and embedded applications. It is used to provide the clock signals required to operate a variety of system functions, such as Ethernet, Bluetooth, memory and display controllers.

In addition to its low-power characteristics, the 8737AGI-11LFT also offers high performance and supports a wide range of frequency inputs up to 2.5GHz. It is capable of providing up to five low-skew output clock signals, as well as one adjustable clock signal that can operate up to 1.5GHz.

Working Principle

The 8737AGI-11LFT clock/timing device works by taking an input frequency in the range of 0.25MHz to 2.5GHz and multiplying it to achieve the desired output frequency up to 1.5GHz.

The frequencies are multiplied with a novel architecture that uses a combination of digital and analog signals. The analog portion of the architecture uses a charge pump and an analog-controlled oscillator (ACO) to generate an output frequency that is in sync with the input frequency. The digital portion of the architecture is used to adjust the output frequency by using a digital-controlled oscillator (DCO). By changing the values of the DCO registers, the frequency of the output signal can be adjusted to match the desired frequency.

The 8737AGI-11LFT also uses advanced technologies such as ambient temperature compensation (ATC) and on-board temperature sensors to maintain low frequency accuracy over a wide range of temeperatures. This is an important feature for applications that need to operate in a wide range of temperatures, as the frequency may otherwise be affected by the changing temperature.

In addition, the 8737AGI-11LFT clock/timing device has internal hysteresis and latch-up protection circuitry that help protect the chip from overtemperature and other environmental anomalies. This is important in applications where there may be unexpected environmental conditions.

Conclusion

The 8737AGI-11LFT clock/timing device is well-suited for a variety of mobile and embedded applications. It provides high performance and low-power operation, as well as additional features such as on-board temperature sensing and hysteresis protection. Such features make this device an ideal choice for many clock/timing applications.

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