LMX2326SLBX/NOPB

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The LMX2326SLBX/NOPB is a frequency synthesizer IC belonging to the family of Clock/Timing – Clock Generators, PLLs, Frequency Synthesizers. It consists of a fully integrated phase-locked loop (PLL) module, a low-noise crystal oscillator, and a synchronous divider. It is capable of synthesizing up to 10 different frequencies from a single 20 MHz input reference frequency and uses digital serial programming to generate the output frequencies.

The LMX2326SLBX/NOPB is designed for simple, quick and cost-effective implementation of multiple frequencies in product designs. Its core feature is a fully integrated PLL with a low-noise crystal oscillator and synchronous divider which allow to synthesize up to 10 different frequencies from a single 20 MHz reference signal. The synthesizer has a fast settling time of 3 microseconds, making it ideal for applications that require rapid frequency changes. The device also features a low phase noise of –273 dBc/Hz (-147 dBc/Hz at 2 kHz offset), making it ideal for high accuracy, low power frequency synthesis.

When it comes to the application fields, the LMX2326SLBX/NOPB is suitable for use in digital television and telecommunications, instrumentation, medical and industrial equipment, as well as for automotive and audio applications. It can be used in a wide range of applications ranging from frequency conversion to frequency generation, and frequency modulation/demodulation. The device is also well-suited for low-power digital signal processing applications, such as digital filters.

From a technical point of view, the LMX2326SLBX/NOPB implements frequency synthesis by means of a phase locked loop. This PLL is a standard feature in frequency synthesizers, as it allows to easily control the output frequency and phase by varying the control parameter multiplied by an external or internal reference frequency. This control parameter is a divisor, a wide-range floating point number which defines the output frequency by means of the following equation: Fout = Fin / Divisor. The main benefit of this implementation is that it allows to synthesize precise and low power frequencies, making the device suitable for applications such as low power receive RF systems and cellular base stations.

Moreover, the LMX2326SLBX/NOPB features an advanced adaptive loop bandwidth selector which provides a wide range of options for selecting the loop bandwidth of the PLL. This allows the designer to trade-off frequency resolution versus settling times in order to achieve optimal performance for a given application. In addition, it provides integrated temperature-compensated crystal oscillator for improved accuracy and temperature stability.

Finally, the LMX2326SLBX/NOPB also features an integrated power management circuit that allows for optimized system power consumption. This power management circuit can be programmed to automatically enter a low power mode when the synthesized frequency is not needed. This results in improved system efficiency and reduced power consumption.

In conclusion, the LMX2326SLBX/NOPB is a highly integrated frequency synthesizer IC specifically designed for use in a wide range of applications. With its low phase noise, fast settling time, adaptive loop bandwidth selector and power management circuit, it is well-suited for applications that require precise, low-power and low noise frequency synthesis.

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