LMK04821NKDR - Low-Noise Clock Jitter Cleaner from Texas Instruments

The LMK04821NKDR is a premium clock jitter cleaner and precision clock distributor from Texas Instruments, designed to meet the stringent requirements of communication infrastructure, data converters, and high-performance applications. This device features ultra-low jitter generation and distribution, making it an ideal choice for systems requiring high clock accuracy and stability.

Key Features:

• Integrated Voltage Controlled Oscillator (VCO): The device includes a fully-integrated VCO with a frequency range of 2.37 GHz to 2.63 GHz, ensuring a flexible and precise clocking solution.
• Dual Loop Jitter Cleaner: With its innovative dual-loop architecture, the LMK04821NKDR can clean up clock noise effectively, providing a jitter performance of sub-100 fs RMS.
• Multiple Outputs: The device offers up to 14 configurable outputs that can be programmed to support various output formats, including LVPECL, LVDS, and LVCMOS, catering to a wide range of applications.
• Programmable Input: It supports various input types, including LVPECL, LVDS, LVCMOS, or crystal inputs, granting flexibility for different system designs.
• Hitless Switching: The LMK04821NKDR provides hitless switching functionality, which allows for seamless transitions between redundant clocking sources without introducing phase disturbances.
• Power Supply: The device operates over a single 3.3 V supply, simplifying power management within the system.

Applications:

The LMK04821NKDR is a versatile component suitable for a variety of high-performance applications, including:

• Wireless infrastructure (LTE, WCDMA)
• Wired communications (SONET/SDH, Ethernet)
• Data conversion (ADC/DAC clocking)
• Test and measurement equipment
• Medical imaging systems

With its advanced features and capabilities, the LMK04821NKDR from Texas Instruments is a robust solution for systems that demand the highest clock precision and reliability. Its comprehensive programmability and performance characteristics make it a go-to component for engineers looking to optimize their clocking architecture.