CDC111FNR

Overview

The CDC111FNR is a single-circuit fanout buffer manufactured by Texas Instruments, designed for clock distribution applications. It features a 1:9 input-to-output ratio with differential LVPECL signaling on both input and output channels. The device supports a maximum operating frequency of 500 MHz and functions within a supply voltage range of 3V to 3.6V. It is housed in a 28-PLCC package (J-Lead) with dimensions of 11.51x11.51 mm, suitable for surface mount installation. The component operates reliably across an ambient temperature range of 0°C to 70°C.

Feature Summary

• Single circuit fanout buffer with 1:9 distribution ratio
• Differential LVPECL input and output signaling
• Maximum operating frequency of 500 MHz
• Supply voltage range of 3V to 3.6V

Applications

• Clock distribution networks requiring signal buffering
• High-speed digital systems utilizing LVPECL interfaces
• Board-level timing synchronization circuits

Procurement Notes

Verify the specific ordering suffix 'FN' against official Texas Instruments documentation to confirm package type and reel specifications. Ensure compatibility with existing PCB footprints for the 28-LCC J-Lead configuration. Confirm that the 0°C to 70°C operating temperature range meets system environmental requirements before procurement.

Selection Notes

Select this component when a single-input, nine-output LVPECL buffer is required for frequencies up to 500 MHz. The 28-PLCC package is appropriate for designs accommodating its specific footprint dimensions. Verify power supply stability within the 3V to 3.6V range to ensure proper operation. Consider thermal management capabilities if operating near the upper temperature limit.

Part Context

The CDC111 series comprises high-speed clock buffers from Texas Instruments. The CDC111FNR variant specifically utilizes the Tape & Reel packaging format, facilitating automated assembly processes. It belongs to the broader category of clock drivers and buffers used for maintaining signal integrity in high-frequency digital environments.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material.