9FGV0441AKILFT

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9FGV0441AKILFT Application Field and Working Principle

Introduction

9FGV0441AKILFT is a high-density, low-power CMOS voltage-fre-quency clock generator. It supports a wide range of power supply voltages, from 1.71V to 3.6V and free-running frequency from 10kHz to 485MHz. The device integrates low jitter PLL, divide-by-N, and an on-chip programmable voltage regulator. It is designed for crystal-less applications and has integrated ESD protection up to 4kV.

Application Field

9FGV0441AKILFT is suitable for various clock and timing applications, such as systems in the industrial, medical and avionics equipment. It can be used in frequency synthesis, voltage and current control, mobile phones, base-stations, television receivers, satellite receivers, broadcasting receivers and other communication systems. The integrated programmable voltage regulator is suitable for various settings to work in low voltage supply applications.

Working Principle

The frequency output of 9FGV0441AKILFT is based on the PLL frequency synthesizer. The internal voltage regulator uses an R-2R network to control the output frequency. The on-chip R-2R network uses an integration capacitance and an external resistor to adjust the output voltage. The EA pin is connected to a programmable voltage regulator, which is used to adjust the output voltage. The feedback loop of the PLL uses a selectable phase-locked loop, a selectable reference clock, or a programmable pre-scaled reference clock to modulate the output signal\'s frequency. The device can be programmed to select the desired output frequency by setting the Nomi2 and Nomi3 pin values.

9FGV0441AKILFT has an integrated on-chip voltage regulator. It regulators the voltage with an R-2R network and can reduce the leakage current. This allows the device to work in low voltage supply applications without sacrificing accuracy and stability. The integrated regulator is adjustable to meet the supply voltage requirement. The voltage regulation accuracy is improved with the incorporation of a programmable voltage regulator.

The device integrates an on-chip ESD protection circuit to ensure the device is robust against ESD impacts. It uses a combination of a reversed threshold MOS transistor and a metal-oxide-silicon bridge to shunt ESD current away from the sensitive circuit paths. The ESD protection ensures the device is able to tolerate up to 4 kV of discharge.

In summary, 9FGV0441AKILFT is an advanced clock generator that integrates a PLL frequency synthesizer and a programmable voltage regulator. It is suitable for various clock and timing applications, and has an integrated ESD protection circuit up to 4kV. 9FGV0441AKILFT supports wide range of power supply voltage, from 1.71V to 3.6V, and a free-running frequency from 10kHz to 485MHz. It is designed for crystal-less applications and has improved voltage regulation accuracy due to the integration of a programmable voltage regulator.

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