844202AKI-245LF

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844202AKI-245LF is a kind of configurable clock generator (CCG) module designed for clocking needs of all sorts of electronic systems. It uniquely combines a crystal oscillator and a dedicated Frequency Synthesis Block (FSB) in a single module to offer extremely high-jitter performance, wide frequency range, wide supply voltage range and power saving features. This product belongs to the application-specific clock/timing area of configurable clock generator modules, and its working principle and applications field can be discussed below.

Working Principle

The 844202AKI-245LF module operates based on crystal oscillator and dedicated Frequency Synthesis Block (FSB). The crystal oscillator is the basic timing element of the module, providing a reference signal accurate to tune of parts-per-billion (PPB). The FSB takes the exact reference and provides synthesized output of on-chip programmed frequencies between 5 and 200MHz. This frequency range can be adjusted by the selection and combination of three different clock outputs, which can be configured for a wide variety of applications.

The integrated FSB includes a Voltage Control Oscillator (VCO) with a range of 2.25 to 2.75GHz. The Frequency Control Loop (FCL) then controls the gain and lower frequency limits of the VCO. The module also includes a Phase Detector/Phase Locked Loop (PLL) that is capable of locking the VCO frequency to the external (or internal) clock input. Once locked, the VCO output can be used to generate the required output clock frequency.

Application Field

The 844202AKI-245LF module has a wide array of application fields, all thanks to its configurable options and wide frequency range. It can be used for communication interface, industrial automated systems, base station and repeaters, IT and datacenter installations, embedded systems, as well as automotive and consumer electronics. The module can be used for both general purpose and specific purpose applications.

One example of the 844202AKI-245LF’s application field is in the clocking needs of communication equipments. These equipments, from wireless Base Stations to VoIP phones, require a stable low-jitter clock that meets their exact timing requirements. The 844202AKI-245LF can provide an accurate and flexible solution as it can be programmed to generate a wide variety of frequencies, depending on the application.

The 844202AKI-245LF can also be used in embedded systems. In these applications, the module can act as the main system clock, or used as a backup or redundancy clock in order to ensure system timing reliability and accuracy at all times. Since the module is powered by a single supply, the power saving features can help minimize the power requirements in these embedded systems.

Conclusion

The 844202AKI-245LF is a highly configurable clock generator module that offers exceptional jitter performance and wide frequency range, making it suitable for a wide variety of clock/timing applications. With its on-chip FSB, the module can generate frequencies between 5 and 200MHz to reliably meet the needs of different electronic systems. It belongs to the application-specific clock/timing area of configurable clock generators, and can be used for communication interface, industrial automated systems, base station and repeaters, IT and datacenter installations, embedded systems and automotive and consumer electronics.

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