CDC2351QDBRG4

Overview

The CDC2351QDBRG4 is an automotive-grade clock buffer and distribution IC manufactured by Texas Instruments. It features a single circuit with a 1:10 input-to-output ratio, designed to distribute LVTTL signals. The device supports a maximum frequency of 100 MHz and operates on a supply voltage range of 3V to 3.6V. It is qualified under the AEC-Q100 standard for automotive applications and functions within an extended operating temperature range of -40°C to +125°C. The component is housed in a 24-SSOP package with a width of 5.30mm and is supplied in tape and reel packaging.

Feature Summary

• Automotive grade qualification (AEC-Q100) for reliability in vehicle environments
• Single 1:10 fanout buffer configuration for signal distribution
• LVTTL input and output compatibility
• Extended industrial temperature range (-40°C to +125°C)

Applications

• Automotive electronic control units requiring clock distribution
• In-vehicle infotainment systems
• Body control modules

Procurement Notes

Verify that the specific ordering suffix matches the required package and tape/reel specifications. Confirm the AEC-Q100 automotive qualification status is explicitly stated in the official datasheet for the exact part number variant being procured. Ensure the supplier provides documentation confirming the 24-SSOP package dimensions.

Selection Notes

Select this component when an LVTTL-compatible clock signal requires expansion into ten distinct outputs within an automotive environment. The 100 MHz maximum frequency must meet the system's timing requirements. Verify that the 3V to 3.6V supply voltage aligns with the target board's power rails and that the 24-SSOP footprint fits the PCB layout constraints.

Part Context

This part belongs to the CDC2351 series of clock buffers. The 'Q' designation typically indicates automotive qualification, while 'DBR' specifies the 24-SSOP tape and reel package. It serves as a fanout buffer to drive multiple loads from a single source without signal degradation.

Replacement Considerations

Check for other CDC2351 variants with different package options or non-automotive grades if cost or availability is critical. Ensure any substitute maintains the 1:10 ratio, LVTTL interface, and AEC-Q100 qualification if automotive compliance is mandatory.