CDCM1802RGTTG4

Overview

The CDCM1802RGTTG4 is a clock buffer and driver manufactured by Texas Instruments, designed for high-frequency signal distribution. It operates as a fanout buffer with a 1:2 output ratio, supporting differential input and output configurations. The device accepts LVCMOS, LVPECL, or LVTTL inputs and provides LVCMOS or LVPECL outputs. It functions within a supply voltage range of 3V to 3.6V and supports maximum frequencies up to 800 MHz. The component is housed in a 16-VQFN package with an exposed pad, suitable for surface mount applications across an operating temperature range of -40°C to 85°C.

Feature Summary

• Supports differential input and output signals for noise immunity
• Accepts multiple input logic levels including LVCMOS, LVPECL, and LVTTL
• Provides flexible output options with LVCMOS or LVPECL compatibility
• Operates at frequencies up to 800 MHz with a 1:2 distribution ratio

Applications

• High-speed clock distribution networks
• Differential signaling interfaces requiring level translation
• System synchronization circuits in communication equipment

Procurement Notes

Verify the specific ordering suffix against official Texas Instruments documentation to confirm package type and tape/reel specifications. Ensure that the selected variant matches the required thermal performance and moisture sensitivity level for the intended assembly process. Cross-reference the manufacturer part number with authorized distributors to confirm current availability status.

Selection Notes

Select this component when a single-ended or differential source needs to drive two separate loads with compatible logic levels. Confirm that the system power supply remains stable between 3V and 3.6V. Evaluate the PCB layout requirements for the 16-VQFN package to ensure adequate thermal dissipation through the exposed pad during operation at maximum frequency.

Part Context

This part belongs to the family of clock buffer and driver integrated circuits from Texas Instruments. It serves as a signal conditioning element within larger timing architectures, bridging different voltage domains while maintaining signal integrity. The 16-VQFN form factor allows for compact integration into space-constrained electronic designs.

Replacement Considerations

Consult official Texas Instruments substitution guides for verified alternatives. Ensure any replacement maintains the 1:2 ratio, 800 MHz capability, and compatible input/output voltage levels.