NB3L208KMNTXG

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The NB3L208KMNTXG is an integrated clock driver designed for applications requiring the low skew transmission of multiple low power clock signals. This integrated device combines eight independent differential clock buffers with an internal oscillator and common reset functions, providing the designer with a clock distribution solution which allows for fewer external components and reduced board area on the printed circuit board. Its highly flexible design allows for a wide range of clock cycle times and frequencies, making it ideal for a variety of digital applications such as communications, computing, and embedded systems.

NB3L208KMNTXG Application Field

The NB3L208KMNTXG clock buffer can support a variety of applications requiring low jitter, low skew clock buffers. It is well suited for applications where precise synchronization of multiple clock signals over a longer distance is required. It can be used in applications such as high speed detectors, audio and video equipment, industrial control systems and embedded systems. Re-timing of clock signals in multiple boards is also possible, providing better clock signal integrity in large multi-board systems.

The high input and output flexibility of the NB3L208KMNTXG make it suitable for use in a range of applications, from low frequency and digital clock signals, to a wide variety of higher speed digital systems. The device is also capable of providing a clock source for the synchronization of multiple clock domains. It is designed to scale for a variety of embedded applications and is ideal for interfacing to multiple clock domains, such as an FPGA, a processor or a platform.

NB3L208KMNTXG Working Principle

The NB3L208KMNTXG consists of an integrated oscillator circuit, eight differential pairs of clock buffers, a reset generator and an input synchronization logic. The oscillator circuit utilizes a crystal oscillator, providing a frequency range from 8kHz to 24MHz, allowing for flexibility in application. This crystal oscillator source can then feed into one or more of the eight clock buffers. The buffered clock signals are then passed through the reset generator and synchronization logic to ensure correct synchronization of all signals.

The eight differential pairs of clock buffers offer a low skew propagation delay and skew between the different outputs, ensuring the low jitter and low skew required for a variety applications. The internal reset generator is capable of generating and synchronizing reset signals to all of the outputs while providing a minimum pulse width of 50ns. The reset generator can also be configured to provide a synchronous reset to all of the outputs, allowing for multiple clock domains.

Additionally, the NB3L208KMNTXG features a programmable input synchronization logic, which can handle a wide range of clock cycles. This feature allows the clock signal inputs to the device to be synchronized, providing better performance and reliability to ensure that the desired jitter and skew characteristics are met. Furthermore, the device also features an on-chip CK_EN control to help save power during non-active periods.

Conclusion

The NB3L208KMNTXG is an integrated clock driver designed for applications requiring the low skew transmission of multiple low power clock signals. This integrated device combines eight independent differential clock buffers with an internal oscillator and common reset functions, providing the designer with a clock distribution solution which allows for fewer external components and reduced board area on the printed circuit board. Its highly flexible design allows for a wide range of clock cycle times and frequencies, making it ideal for a variety of digital applications such as communications, computing, and embedded systems.

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