Texas Instruments

CDCR83ADBQ

CDCR83ADBQ Description

The CDCR83ADBQ is a high-performance clock generator specifically designed for Direct Rambus applications, manufactured by Texas Instruments. This IC is housed in a 24-QSOP package and is suitable for surface mount applications. It features a maximum operating frequency of 400MHz, making it ideal for high-speed memory systems. The CDCR83ADBQ supports a supply voltage range of 3.135V to 3.465V and offers a 1:1 input-to-output ratio. It is equipped with a Phase-Locked Loop (PLL) to ensure stable and accurate clock generation. The input is TTL-compatible, and the output is a differential clock signal, enhancing signal integrity and reducing electromagnetic interference (EMI).

CDCR83ADBQ Features

• High-Speed Operation: With a maximum frequency of 400MHz, the CDCR83ADBQ is designed to meet the demands of high-speed memory systems.
• PLL Integration: The inclusion of a PLL ensures precise clock generation, minimizing jitter and phase noise.
• TTL Input Compatibility: The TTL-compatible input simplifies integration with existing systems and reduces the need for additional level-shifting components.
• Differential Output: The differential clock output enhances signal integrity, making it suitable for high-speed applications where EMI is a concern.
• Surface Mount Compatibility: The surface mount package type facilitates easy integration into modern PCB designs.
• Supply Voltage Range: The 3.135V to 3.465V supply voltage range provides flexibility in power supply design.
• Obsolete Status: While the product is marked as obsolete, it remains a reliable choice for legacy systems and applications where its specific features are required.
• Compliance: The CDCR83ADBQ is REACH unaffected and RoHS3 compliant, ensuring it meets environmental and safety standards.

CDCR83ADBQ Applications

The CDCR83ADBQ is ideal for applications requiring high-speed clock generation for memory systems, particularly those utilizing RDRAM. Its differential output and PLL make it suitable for environments where signal integrity and low jitter are critical. Specific use cases include:

• High-Speed Memory Systems: Ideal for generating clock signals for RDRAM modules, ensuring reliable and efficient memory operation.
• Networking Equipment: Suitable for applications where high-speed data transfer and low EMI are essential, such as in routers and switches.
• Industrial Control Systems: Provides stable clock signals for industrial applications requiring precise timing and high reliability.
• Legacy System Upgrades: For systems that require a reliable clock generator with specific performance characteristics, the CDCR83ADBQ offers a proven solution.

Conclusion of CDCR83ADBQ

The CDCR83ADBQ from Texas Instruments is a robust clock generator designed for high-speed memory applications. Its high operating frequency, differential output, and integrated PLL make it a reliable choice for demanding applications. Despite its obsolete status, the CDCR83ADBQ remains a valuable component for legacy systems and applications where its unique features are required. Its compliance with environmental and safety standards ensures it meets modern regulatory requirements. For engineers and designers seeking a high-performance clock generator for RDRAM systems, the CDCR83ADBQ is a compelling option.