CDC111FNRG4

Overview

The CDC111FNRG4 is a single-circuit fanout buffer and clock distribution integrated circuit manufactured by Texas Instruments. It features a 1:9 input-to-output ratio with differential LVPECL inputs and outputs, supporting maximum frequencies of 500 MHz. The device operates on a supply voltage ranging from 3 V to 3.6 V and is rated for an operating temperature range of 0°C to 70°C. It is housed in a 28-LCC (J-Lead) package, specifically identified as a 28-PLCC form factor measuring 11.51 x 11.51 mm, and is designed for surface-mount installation.

Feature Summary

• Single-circuit fanout buffer with a 1:9 input-to-output ratio
• Differential LVPECL input and output signaling
• Maximum operating frequency of 500 MHz
• Surface-mount 28-LCC (J-Lead) package

Applications

• Clock distribution networks requiring signal buffering
• High-speed digital systems utilizing LVPECL interfaces
• Board-level clock fan-out applications

Procurement Notes

Verify the specific ordering suffix against manufacturer documentation to confirm package type and reel specifications. Ensure that the selected variant matches the required thermal and electrical parameters for the target application environment. Cross-reference the part number with official distributor catalogs to validate current availability and lead times before finalizing procurement plans.

Selection Notes

Select this component when a 1:9 fanout buffer with LVPECL compatibility is required. Confirm that the system power supply remains within the 3 V to 3.6 V range. Verify that the operating temperature requirements fall within the 0°C to 70°C commercial grade limits. Ensure the PCB layout accommodates the 28-LCC J-Lead footprint dimensions.

Part Context

This component belongs to the Texas Instruments clock buffer and driver product line. It serves as a specialized solution for distributing clock signals in high-speed digital designs. The device provides signal integrity through differential LVPECL outputs, making it suitable for applications where low skew and high-frequency performance are critical requirements.

Replacement Considerations

Check for direct pin-compatible alternatives within the same family or cross-manufacturer equivalents that support LVPECL I/Os and similar frequency ranges. Verify that any substitute maintains the 1:9 ratio and compatible supply voltage specifications.