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8N3QV01LG-0112CDI8 application field and working principle

The 8N3QV01LG-0112CDI8 is a high performance and low jitter digital PLL crystal oscillator (DPXO) that is mainly used in high-end communications and storage equipment, consumer electronics and 3G/4G/LTE mobile phones. It offers tremendous benefits in applications such as frequency synthesis, Clock generation, jitter attenuation, modulation, switching, and filtering.

Application Fields

• High-speed SerDes
• Data Communication Equipment
• Storage Equipment
• Consumer Electronic Products
• 3G/4G/LTE Mobile Phones
• GPS & Navigation Systems
• Audio & Video Products

Working Principle

The 8N3QV01LG-0112CDI8 has a Digital PLL circuit that is used to create higher frequencies than the input frequency. It combines the advantages of both an Analog PLL and Digital PLL and allows it to synthesize higher frequencies with a lower jitter when compared to analog PLLs. The internal components of the 8N3QV01LG-0112CDI8 are highly compatible with CMOS logic, so it does not require a separate power source for functioning.

The 8N3QV01LG-0112CDI8 PLL relies heavily on its digital control loop to synchronize signals by adjusting its frequency in order to keep the signals in sync. The output frequency is generated by a number of internal components, including a System Clock Oscillator, a Phase Frequency Detector (PFD), a Digital Phase Locked Loop (DPLL) circuit and a programmable frequency divider. The PFD processes the input reference signals by comparing the frequencies and phase shifts of the input signals, and then using the information to adjust the output frequency accordingly. The DPLL circuit is then used to adjust the frequency and keep the output frequency synchronized to the input reference signals.

The 8N3QV01LG-0112CDI8 is also equipped with a programmable frequency divider that is used to divide down the high frequency of the output to the desired frequency. This frequency divider has a wide range of Division Ratios, which allows it to generate the desired output frequency accurately and with minimal jitter. The programmable frequency divider also allows for a wide range of modulation outputs, such as phase modulation or pulse width modulation, which is useful for applications such as transmitters, receivers, and frequency synthesizers.

Due to its high performance, low jitter and wide range of modulation outputs, the 8N3QV01LG-0112CDI8 is the ideal choice for applications such as frequency synthesis, clock generation, jitter attenuation, modulation, switching, and filtering.

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