LMX2487SQX/NOPB

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The LMX2487SQX/NOPB is a robust clock generator with fully-integrated phase-locked loop (PLL) design that allows effective and reliable synthesis of clock signals. The PLL is composed of an on-chip voltage-controlled oscillator (VCO), a phase detector, an operational amplifier, and an adjustable low-pass loop-filter. The LMX2487SQX/NOPB provides low-leakage and low-skew real-time clock signal outputs for a wide range of applications, including advances in communication, signal integrity, signal sources, embedded computing, clocks, and other time-sensitive functions.

The LMX2487SQX/NOPB model supports outputs from 8kHz to 880MHz and can operate from 2.5V to 5.5V supply voltages. It comes with an interoperable programmable PLL clock that supports various output frequencies and has an adjustable output skew. The frequency accuracy of ±1000ppm over the full operating temperature range guarantees clock synchronization and phase detection accuracy.

The LMX2487SQX/NOPB offers a maximum input frequency of 48MHz which allows the clock synthesizer to operate with very low jitter, making it ideal for applications that require high-precision timing control. The chip has a wide range of integrated on-chip termination terminations and reference clocks that can be used to provide additional timing and control options.

LMX2487SQX/NOPB is suitable for applications that require high-accuracy, low-leakage, low-skew, and real-time clocking of signal sources. It effectively provides signal integrity and reliable synchronization of communications, embedded computing, signal sources, clocks, and other time-critical functions. It is also ideal for applications that require low-jitter, high-precision, and robust timing control.

The LMX2487SQX/NOPB application field and working principle involves controlling the on-chip voltage-controlled oscillator (VCO). This allows the chip to regulate the output frequency of the clock and to keep the outputted clock signal in-phase. The VCO output is then fed into a divide-by-N divider which divides the clock frequency down to the user’s desired output frequency. In the PLL, the two feedback blocks, the phase detector and the loop filter, work together to maintain a steady-state frequency and to reduce the jitter of the output.

The LMX2487SQX/NOPB offers adjustable DC-coupled outputs and low-power CMOS operation. Its adjustable low-pass loop filter allows fast lock time and low jitter, making it ideal for applications that require high-precision timing control. The device integrates several clock inputs, programmable through registers, for maximum flexibility and it supports both high-frequency and low-frequency clocks.

In addition, this clock generator provides a low-power and low-cost solution with minimal external components. Its integrated LDOs, voltage regulators and level-shifts facilitate the reduction of board area while ensuring stable and accurate operation. The LMX2487SQX/NOPB also provides a wide range of operating temperature, offering an additional level of reliability for critical timing applications.

Overall, the LMX2487SQX/NOPB is a highly reliable, low-power clock generator that provides a robust, low-cost solution for applications requiring high-precision timing control and reliable signal integrity. This device ensures precise synchronization of signals and stability of the clock source. It is suitable for a variety of applications, including communications, embedded computing, and other time-sensitive applications.

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