CDCM1804RTHR

Overview

The CDCM1804RTHR is a clock buffer and distribution device manufactured by Texas Instruments. It operates within a supply voltage range of 3V to 3.6V and supports a maximum frequency of 800 MHz. The component features one circuit with a 1:4 input-to-output ratio, providing differential inputs and outputs. Input signal compatibility includes CML, HSTL, LVDS, LVPECL, LVTTL, SSTL-2, and VML. Output configurations support LVCMOS and LVPECL standards. It is housed in a 24-VQFN (4x4) package with an exposed pad, designed for surface mount mounting, and functions reliably across an operating temperature range of -40°C to 85°C.

Feature Summary

• Supports 800 MHz maximum frequency operation
• Provides 1:4 fanout buffer distribution
• Compatible with multiple input standards including LVDS, LVPECL, and CML
• Housed in a compact 24-VQFN (4x4) surface-mount package

Applications

• Clock distribution networks requiring high-frequency buffering
• Systems utilizing LVDS or LVPECL differential signaling
• Digital circuits requiring conversion from various logic levels to LVCMOS/LVPECL

Procurement Notes

Verify the specific ordering suffix against manufacturer documentation to confirm package type and reel specifications. Ensure the selected variant matches the required 24-VQFN footprint and thermal pad configuration for proper PCB layout and soldering processes.

Selection Notes

Select this component when a single-ended or differential source requires driving four loads at frequencies up to 800 MHz. Confirm that the system power supply remains within the 3V to 3.6V range and that the ambient temperature stays between -40°C and 85°C during operation.

Part Context

This device belongs to the clock buffer and driver category within Texas Instruments' portfolio. It serves as a signal conditioning element for timing applications, bridging sources and destinations in digital systems where signal integrity and fanout are critical requirements.

Replacement Considerations

Consult official cross-reference data for compatible alternatives. Verify pinout compatibility and electrical parameters such as supply voltage and output drive strength before substituting.