CD4046BNSR Integrated Circuits (ICs)

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CD4046BNSR is a complete phase-locked loop consisting of a stable voltage-controlled oscillator (VCO) and free-running oscillator. By means of a fix-view phase comparator, a low-pass filter and charge pump, the oscillator can easily be synchronized with an external reference clock. This device also contains integrate non-overlapping clock generator which has wide range of application.

Its main application field includes clock dividers and multipliers, auto-synchronization, frequency multiplication, phase detection, pulse-width modulation and frequency synthesis, etc. It is an excellent choice for most digital circuits, especially those needing precision timing. With its integrated non-overlapping clock generator, it can reduce design complexity and reduce its components.

The working principle of CD4046BNSR can be divided into three sections:

• Voltage-controlled oscillator (VCO): VCO is used to provides the frequencies needed in different applications. It has various frequency ranges, depending on the type of circuits. It is designed to produce stable frequency output which is used to synchronize with the reference clock.
• Phase comparator: The phase comparator is used to compare the frequency of the VCO with that of the reference clock. It provides a control signal to the charge pump which can maintains the frequency of the VCO.
• Charge pump: This is used to control the output frequency of the VCO. It can adjust the output frequency by always keeping the oscillator in phase with the reference clock. The charge pump continuously operates and adjusts the frequency until it is synchronized with the reference clock.

Besides, the non-overlapping clock generator use the output of both VCO and reference clock allowing it to outputs two non-overlapping pulse waves, which can be used in different applications. With its wide applications and features, CD4046BNSR is an invaluable element in precision timing circuit. Its high accuracy and ability to synchronize with external reference clock make it an ideal choice for any digital circuits that demand precision timing.

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