SN65LVDS108DBTRG4

Overview

The SN65LVDS108DBTRG4 is a low-voltage differential signaling (LVDS) clock fanout buffer manufactured by Texas Instruments. It features one differential input and eight differential outputs, designed to distribute clock signals with high integrity. The device supports maximum input frequencies up to 400 MHz and exhibits a maximum propagation delay of 4.5 ns. It operates within a supply voltage range of 3 V to 3.6 V and functions reliably across an industrial temperature range from -40°C to +85°C. The component is housed in a 38-pin TSSOP package and is supplied in tape-and-reel format for automated surface-mount assembly.

Feature Summary

• Provides 1:8 LVDS clock fanout distribution capability
• Features differential Schmitt trigger inputs for noise immunity
• Supports high-speed data transmission rates up to 400 MHz
• Complies with EIA-644 and TIA-644 LVDS interface standards

Applications

• High-speed digital signal processing systems
• Telecommunications infrastructure equipment
• Computer peripheral interconnects
• Test and measurement instrumentation

Procurement Notes

Verify the specific suffix 'G4' confirms lead-free and RoHS compliance status as per manufacturer documentation. Confirm the 'DBT' designation corresponds to the 38-pin TSSOP package variant. Ensure the 'R' suffix indicates tape-and-reel packaging rather than tube packaging when sourcing components for automated production lines.

Selection Notes

Select this component when a single differential clock source requires distribution to eight distinct LVDS destinations. Verify that the system power supply remains stable between 3 V and 3.6 V. Ensure the PCB layout accommodates the 38-pin TSSOP footprint and maintains impedance control for differential pairs to preserve signal integrity at frequencies approaching 400 MHz.

Part Context

This part belongs to the SN65LVDS108 family of LVDS clock buffers. It serves as a derivative of the standard SN65LVDS108, distinguished by its specific packaging and environmental compliance markings. The device is categorized under Clock & Timer ICs within the broader logic and interface integrated circuit portfolio.

Replacement Considerations

The SN65LVDS108DBTR is a non-RoHS compliant alternative within the same package. The SN65LVDS108DBTG4 represents the tube-packaged version of this RoHS-compliant component. Cross-reference datasheets to confirm pin compatibility and electrical specifications before substitution.