FD3840012

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

Oscillators

FD3840012 is a high performance frequency divider suitable for synthesizing accurate and low jitter clocks. One of applications that FD3840012 can be used for is creating a low frequency signal at a high frequency reference. Specifically, FD3840012 can divide a high frequency input signal into an output signal with a lower frequency compared to the input frequency.

Application Field

FD3840012 can be used to provide clocking technologies for various applications, such as gates for FPGAs, microprocessors, SDRAMs, ISDN, Audio, and Video recorders. It is used to generate an accurate internal clock signal with low jitter from any high frequency reference. Therefore, it is ideal for clock synthesizer designs, as it can be used to replace or reduce the number of external clock devices.

Precise clocking technology provided by FD3840012 is also suitable for switching and timing applications. In adddition, it helps to reduce EMI and improve power efficiency due to its low frequency output clock signals.

Working Principle

FD3840012 is based on a divide-by-N circuit. High frequency reference is fed into the FD3840012 and the output frequency is determined by the ratio between these two frequencies. The output frequency of FD3840012 is equal to the reference frequency divided by the integer value N. FD3840012 supports multiple configurations, which offer reference clock frequencies ranging from 20 MHz to 200 MHz or higher.

In order to generate the output clock signal, FD3840012 utilizes a high speed Divide-by-N counter. The counter is bascially an internal register which is incremented by the clock pulse of the reference frequency. Every time the counter reaches a predefined value (equal to the desired frequency divisor N), the counter restarts from zero, thereby generating a low-jitter replica of the reference clock with a different frequency.

The key features of FD3840012, associated with its low jitter output, include various techniques, such as on-chip loop control circuit, output-slope compensation technique and high resolution N-Window Counter. All of these techniques help to eliminate the effects of process variations, temperature, and other parameters.

Conclusion

FD3840012 is a powerful frequency divider capable of producing an output clock signal which is lower in frequency compared to the reference clock. It offers a wide range of applications, such as FPGA gates, microprocessors, SDRAMs, audio and video recorders. Its main features revolve around its low jitter output, for which it utilizes techniques like on-chip loop control circuit and output slope compensation technique.

The specific data is subject to PDF, and the above content is for reference