CDC2351QDB

Overview

The CDC2351QDB is an automotive-grade fanout buffer manufactured by Texas Instruments, designed for clock distribution applications. It provides a single circuit with a 1:10 input-to-output ratio, supporting maximum frequencies up to 100 MHz. The device accepts LVTTL inputs and generates LVTTL outputs, operating within a supply voltage range of 3 V to 3.6 V. Qualified under AEC-Q100 standards, it functions reliably across an extended temperature range from -40°C to +125°C. Packaged in a 24-SSOP surface-mount case, this component ensures signal integrity in demanding automotive electronic environments.

Feature Summary

• Automotive qualification (AEC-Q100) for reliability in vehicle electronics
• 1:10 fanout ratio with 100 MHz maximum frequency capability
• LVTTL input/output compatibility for standard logic interfacing
• Extended temperature operation from -40°C to +125°C

Applications

• Clock distribution networks in automotive infotainment systems
• Signal buffering for engine control units (ECUs)
• Timing distribution in automotive sensor interfaces

Procurement Notes

Verify the specific ordering suffix 'QDB' against the manufacturer's official documentation to confirm package type and tape/reel specifications. Ensure the procurement channel provides valid AEC-Q100 certification records. Confirm that the delivered components match the 24-SSOP physical dimensions and electrical parameters specified in the datasheet before integration into production lines.

Selection Notes

Select the CDC2351QDB when an automotive-rated clock buffer with a 1:10 split ratio is required. It is suitable for designs needing LVTTL signaling at frequencies up to 100 MHz. Consider this part if the application demands operation in high-temperature environments up to 125°C. Verify that the 3V to 3.6V supply range aligns with the system power architecture.

Part Context

This component belongs to the CDC235x series of clock buffers and drivers from Texas Instruments. The 'Q' prefix typically denotes automotive grade qualification, while 'DB' indicates the 24-SSOP package. It serves as a specialized variant within the broader CDC family, tailored specifically for automotive reliability standards rather than general consumer or industrial use.

Replacement Considerations

Check for direct cross-references within the CDC235x family. Verify pinout compatibility and electrical characteristics such as propagation delay and output drive strength before substituting with other 1:10 fanout buffers.