LMX2541SQ2380E/NOPB

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The LMX2541 is an ultralow jitter, low-noise, Clocking IC (Clock Generator) from Texas Instruments which can be used to generate up to four reference clock outputs from one reference input, such as a crystal oscillator. This device is designed for broadcast applications requiring highly accurate time-of-day reference and is suitable for use in telecommunications, networking, and industrial automation applications.

The device contains a VCO (Voltage Controlled Oscillator) which can generate four independent clock outputs and drives four outputs with high output noise level of -2 dBm. The device is optimized for very low jitter and low additive jitter operation and has an integrated fractional-N and integer-N Phase Locked Loop (PLL). With high-stability, low- additive jitter and output-to-output skew performance, the LMX2541 is suitable for high-speed data transfer systems, such as 10G Ethernet, and traffic monitoring application.

The LMX2541 is housed in a small 0.8 mm pitch,10x10 mm LQFP package and offers a wide operating temperature range of -40°C to +85°C. It also offers programmability of all PLL and dividers settings through three control pins. The device provides a selectable divide-by-4 or divide-by-8 functionality at the reference input to enable operation of the device with signals up to 1GHz.

The LMX2541 is a Frequency Synthesizer as well as a Clock Generator. It has an integrated fractional-N and an integer-N PLL which can adjust the frequencies of the output clocks by changing the output frequency selection, the reference frequency selection, or both. In addition, the integer-N PLL allows for programmable output frequencies within the VCO range by changing the PLL parameters.

The LMX2541 has multiple control pins, allowing users to customize the operating frequencies of the output clocks. By changing the output frequency selection and the reference frequency selection, the device can accommodate a range of signal frequencies from 0.1 MHz up to 1 GHz for output, or 0.3 MHz to 25 MHz for reference.

The device supports up to four independent outputs with no phase-shift between them. Output-to-output skew is minimized, with a typical skew time of 2 ns. The device employs an adjustable power saving mode to reduce power consumption for extended use, and a programmable buffer current to provide stable output frequency.

The LMX2541 is a highly-integrated, high-performance Frequency Synthesizer and Clock Generator which provides single input/four output Clock generation, with frequency-agile capability and low power consumption, making it suitable for a wide range of commercial, industrial, and automotive applications.

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