CDCL1810RGZR

Overview

The CDCL1810RGZR is a low-jitter clock buffer and distribution circuit manufactured by Texas Instruments. It features a single LVDS differential input and ten CML differential outputs, providing a 1:10 fanout ratio. The device supports maximum operating frequencies up to 650 MHz and operates within a supply voltage range of 1.7 V to 1.9 V. Designed for surface-mount applications, it is housed in a 48-VQFN package with an exposed pad, measuring 7 mm x 7 mm. The component is qualified for industrial temperature ranges, functioning reliably between -40°C and +85°C.

Feature Summary

• Single LVDS differential input driving ten CML differential outputs
• Maximum output frequency capability of 650 MHz
• Low power consumption with 1.7 V to 1.9 V supply voltage operation
• Industrial temperature range support from -40°C to +85°C

Applications

• High-speed data communication systems requiring clock distribution
• Telecommunications infrastructure equipment
• Test and measurement instruments needing precise timing signals

Procurement Notes

Verify the specific ordering suffix RGZR corresponds to the Tape & Reel packaging configuration before procurement. Confirm that the 48-VQFN (7x7) package dimensions align with the target PCB footprint requirements. Ensure the design accommodates the required 1.7 V to 1.9 V power supply rails and thermal dissipation needs for the exposed pad in the intended operating environment.

Selection Notes

Select this component when a single differential source must drive multiple CML loads with minimal skew. The 650 MHz frequency limit suits applications below this threshold. Verify compatibility between the LVDS input levels and the system's source driver. Consider the 48-pin package size for board space constraints compared to smaller buffer options.

Part Context

This part belongs to the CDCL1810 family of clock buffers. The RGZR suffix indicates the specific tape and reel packaging variant. It serves as a fanout buffer designed to maintain signal integrity across multiple branches in high-speed digital circuits.

Replacement Considerations

Check datasheets for other Texas Instruments clock buffers with 1:10 ratios and compatible LVDS-to-CML configurations. Verify pin-to-pin compatibility if substituting directly on existing layouts.