LMX2531LQ2220E/NOPB Integrated Circuits (ICs)

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

The LMX2531LQ2220E/NOPB is a dual PLL frequency synthesizer designed for wireless and portable applications. It integrates a high-performance dual PLL in a small, low-cost package and delivers world-class performance. The integrated dual PLL technology can provide up-to-date low-power synthesizers with excellent close-in spectral purity. The synthesis performance and product feature enable designs based on LTE, WiMAX, and other 3G/4G wireless communication technologies.

The LMX2531LQ2220E/NOPB is designed to generate precise frequency output with optimized silicon technology. This allows accurate, low-jitter, and low-power operation which is essential for modern wireless communications. Its main features include a low-noise oscillator, an internal reference clock, multiple output type selection, an integrated feedback divider, and a sync output for wideband operation.

The LMX2531LQ2220E/NOPB utilizes fractional-N architecture for wideband frequency synthesis and a multi-mode loop filter to allow designers to refine the behavior of the PLL to achieve optimized performance. It also features a fast lock time and low jitter characteristic, allowing the system to run at very high data rates. Moreover, the device enables fast settling and fast frequency switching which reduces the complexity of the system design.

In the application field, the LMX2531LQ2220E/NOPB is used in various applications including cellular networks, broadcasting and television receivers, automotive systems, Amateur Radio stations, measuring instrumentation, and point-to-point microwave links. It is widely used in high data rate mobile telecommunications, video broadcasting, and audio applications.

The working principle of the LMX2531LQ2220E/NOPB utilizes a fractional-N or integer-N PLL loop design. The fractional-N loop is used for generating output frequency with a wide range of frequencies. It is composed of a precise reference oscillator, a phase/frequency comparator, a loop filter and a voltage-controlled oscillator (VCO). The reference oscillator determines the frequency accuracy and the VCO is responsible for generating output frequencies within a wide range.

The phase/frequency comparator calculates the phase error between the reference oscillator and the VCO output frequency. It compares the two signals and generates a phase error signal. The loop filter averages the phase error signal to obtain an analog voltage that is fed back to the VCO. The filtered voltage will modify the output frequency of the VCO to make it match with the reference frequency in the long run. Thus, the PLL locks onto the reference frequency and provides an accurate output frequency after a period of synchronization.

In conclusion, the LMX2531LQ2220E/NOPB is a dual PLL frequency synthesizer designed for wireless and portable applications, and it integrates a high-performance dual PLL in a small, low-cost package. The integrated dual PLL technology offers excellent close-in spectral purity. Its application fields include cellular networks, broadcasting and television receivers, automotive systems, Amateur Radio stations, measuring instrumentation, and point-to-point microwave links, and it is widely used in high data rate mobile telecommunications, video broadcasting, and audio applications. The device utilizes afractional-N or integer-N PLL loop design which comprises a precise reference oscillator, a phase/frequency comparator, a loop filter and a voltage-controlled oscillator (VCO). The phase/frequency comparator calculates the phase error between the reference oscillator and the VCO output frequency, and the loop filter averages the phase error signal and provides an analog voltage that is fed back to the VCO.

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