LMK04208NKDT

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The LMK04208NKDT clock generator is a highly integrated low-noise clock generator that produces up to four outputs derived from a single reference frequency. This versatile clock generator is used in a wide range of applications across communications, industrial, aerospace, and military systems.  With its exceptional jitter performance, the LMK04208NKDT is well suited for high-performance applications such as 10G, 25G, and 50G communications.

The clock generator provides wide output frequency synthesis from 3.2 kHz up to 1333 MHz from a single reference frequency with superior jitter performance of 200fs. It also offers low noise frequency synthesis for the most critical timing and data applications. The device has ultra-low power consumption of 400mW and is suitable for space-constrained applications.

The LMK04208NKDT is suited for synchronous Ethernet and Synchronous Digital Hierarchy (SDH) transmission applications. It is also used in cable modems, multi-gigabit routers and switches, SONET/SDH, master/slave clock synchronizers, and other wireless network applications. The device can also be used in Fibre Channel, Ethernet, 10G and 40G Data Link, and Coarse Wavelength Division Multiplexing (CWDM) systems.

The technical features of the LMK04208NKDT enable it to operate in a wide temperature range from -40°C to 85°C in commercial grades of the device, and from -55°C to 125°C in industrial, aerospace and military grades. This ensures reliable operation in harsh environmental conditions.

The LMK04208NKDT uses a high-performance 3rd order delta-sigma fractional-N PLL to generate multiple low jitter clock outputs from a wide variety of reference sources. The device also features an on-chip programmable Voltage Controlled Oscillator (VCO), and an advanced Clock Generation Architecture (CGA) with advanced dithering up to 20dB. Additionally, the device has a programmable frequency divider, programmable loop bandwidth and adjustable jitter suppression. Its PECL and LVDS outputs are ideal for long cable runs and quick clock distribution.

The device provides phase alignment of the outputs while keeping the jitter peaking to a minimum. Its phase noise performance is superior and has better phase gains than competing products. The device also supports clock synchronization and clock reversal, providing additional flexibility in clock system applications. Additionally, the device has an on-chip voltage-controlled delay line for phase alignment and output frequency synchronization.

The LMK04208NKDT provides a cost-effective and reliable solution for a wide variety of applications. Its superior jitter performance and wide output frequency range make it a preferred choice for high-performance clock generation applications. It has been designed to meet the required standards for electrical and environmental performance. The device is RoHS compliant and provides high immunity to environmental noise. This makes the LMK04208NKDT a popular choice for clock generation within the Clock/Timing - Clock Generators, PLLs, Frequency Synthesizers market.

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