CDCLVP2104RHDT

Overview

The CDCLVP2104RHDT is a high-performance, low-additive-jitter clock buffer manufactured by Texas Instruments. It features a dual 1:4 differential buffering architecture, converting two input clocks into eight LVPECL output copies. The device supports maximum frequencies up to 2 GHz with a typical additive jitter of less than 100 fs RMS (10 kHz to 20 MHz offset range). It operates within a supply voltage range of 2.375 V to 3.6 V and functions across an industrial temperature range of -40°C to +85°C. Packaged in a 28-VQFN (5x5 mm) format, it is designed for demanding timing applications requiring minimal skew and precise clock distribution.

Feature Summary

• Dual 1:4 differential buffering with two inputs and eight LVPECL outputs
• Maximum operating frequency of 2 GHz with additive jitter <100 fs RMS
• Universal input compatibility supporting LVCMOS, LVDS, LVPECL, and LVTTL
• Low group output skew of 15 ps maximum

Applications

• High-speed communication systems
• Network routers and switches
• Test and measurement equipment

Procurement Notes

Verify the specific ordering suffix RHDT against official documentation to confirm packaging details such as tape and reel specifications. Ensure that the 28-VQFN package dimensions match the design footprint requirements. Confirm thermal performance expectations regarding the exposed pad for PCB temperature support up to 105°C if applicable.

Selection Notes

Select this component when driving multiple LVPECL loads from LVCMOS, LVDS, or LVPECL sources with strict jitter constraints. The 2:8 ratio suits designs needing extensive fanout from limited clock sources. Verify that the 2.375 V to 3.6 V supply range aligns with the system power rails and that the 2 GHz frequency capability meets the target data rate requirements.

Part Context

This part belongs to the CDCLVP series of clock buffers, which are engineered for low noise and high speed. It serves as a critical interconnect in complex digital systems where signal integrity and timing precision are paramount. The device complements other TI clocking solutions by providing robust distribution capabilities for high-frequency differential signals.

Replacement Considerations

Check for direct pin-to-pin replacements within the CDCLVP family, such as the CDCLVP2102, noting differences in output count. Evaluate alternative manufacturers' LVPECL buffers if supply chain diversification is required, ensuring equivalent jitter and frequency specifications.