SIT9005ACB2G-28SI

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Programmable Oscillators are multi-function oscillators with programmability, enabling manufacturers to rapidly change the frequency or output characteristics of the oscillators. The SIT9005ACB2G-28SI is one of the many Programmable Oscillators on the market. It is a low-current, low-voltage oscillator with features such as adjustable frequency range, low jitter and low phase noise. This paper introduces the application field and working principle of this specific oscillator.

Application Field of SIT9005ACB2G-28SI Oscillator

The SIT9005ACB2G-28SI is designed for applications that require low-voltage and low-power consumption. It is a low power and low frequency Programmable Oscillator that can be used in high speed logic, wireless data networks and other applications. Additionally, this oscillator is popular in medical systems, sensing equipment, and automotive applications such as instrument clusters, keyless entry systems and audio systems. This is due to its exceptionally low power consumption of 1µA with support for timekeeping, clock multiplier and clock switching.

working Principle of SIT9005ACB2G-28SI Oscillator

The SIT9005ACB2G-28SI oscillator is a programmable oscillator that is capable of achieving high accuracy and low power consumption making it ideal for applications which require precision tuning or tightly aligned frequencies. The oscillator is designed with a two-stage configuration that takes supply voltage in LVCMOS, HCSL and other voltage formats. The oscillator features an internal Phase Locked Loop (PLL) structure, which is used to generate stable frequency across a predetermined range. In the first stage, the internal Reference Divider will divide the incoming reference frequency according to user-defined settings. While in the second stage, an internal VCO will generate an output frequency based on the divided reference frequency.

The oscillator also features an internal Programmable Frequency Divider (PFD) that can be used to further reduce the phase noise of the output and improve the phase locking performance by providing a fine granularity Frequency Resolution Over the Programmable Frequency Range.

In terms of power consumption, the SIT9005ACB2G-28SI offers ultra-low current consumption, typically as low as 1 µA when powered off. In addition, the Start-Up time is also very fast and will typically settle to a stable frequency output in just a few microseconds.

To ensure that the device is functional and can hit the right frequency, the SIT9005ACB2G-28SI also features an integrated EMI filter and output buffer. The EMI filter can reduce unwanted external interferences from the external circuit, while the output buffer will help maintain constant output amplitude and isolation.

Conclusion

The SIT9005ACB2G-28SI Programmable Oscillator is designed for applications that require low-voltage and low-power consumption. With its adjustable frequency range, low jitter and low phase noise, and low power consumption, it can be used in various applications, including high speed logic, wireless data networks, medical systems, sensing equipment, and automotive applications. In addition, it also features a two-stage configuration and an internal PLL structure, as well as an internal Programmable Frequency Divider, EMI filter, and output buffer in order to ensure reliable output.

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