844031BGI-01LFT

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844031BGI-01LFT Clock/Timing - Clock Generators, PLLs, Frequency Synthesizers

The 844031BGI-01LFT is a clock generator, PLL (phase-locked loop) and frequency synthesizer for high performance communications systems. It is designed to operate on a 3.3V power supply, providing a stable and precise clock output for digital communication applications. The 844031BGI-01LFT provides an on-chip voltage-controlled oscillator (VCO) which is then divided down on-chip to provide a reference clock frequency suitable for application. This feature provides a wide range of frequency support and flexibility, allowing designers to reduce board space and cost while maintaining stringent performance requirements.

Application Field

The 844031BGI-01LFT is designed to provide a precise and reliable reference clock to high-performance communications systems, including 802.11g/n/ac Wi-Fi, 802.16e WiMAX, LTE/LTE-Advanced, and GSM/EDGE/CDMA systems. It can also be used in sensor interface, digital imaging, point of sale, cloud computing, and other industrial applications.

Working Principle

The 844031BGI-01LFT consists of a Voltage-Controlled Oscillator (VCO) that can be programmed with an external voltage, or an internal voltage derived from an on-chip temperature compensated reference clock. The VCO is divided down using a variety of on-chip dividers, producing stable and precise clock outputs, ranging from approximately 8MHz to 1.8GHz. The dividers and other features of the device are controlled by an external interface, allowing for further customization of the clock’s frequency and output.

The device also features a variety of security features, including an anti-tamper circuit that turns off the clock and drive signals if the device is tampered with or if the supply voltage drops below a certain level. The device also features a programmable lock function, that allows the device to be locked and only unlocked if a predetermined word is presented.

The 844031BGI-01LFT supports a variety of output types, including LVDS and LVCMOS output signals, allowing for flexibility during design. The device also features low jitter performance, minimized trace inductance, and programmable spread spectrum mode for further optimization of the clock performance.

Conclusion

The 844031BGI-01LFT is a clock generator, PLL, and frequency synthesizer for high performance communications systems. It is designed to operate on a 3.3V power supply, providing a stable and precise clock output for digital communication applications. The device features a wide range of clock output support, anti-tamper and lock features, and various output types, allowing designers flexibility and customization in their applications.

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