SN65LVDS9638DGKRG4

Drivers, Receivers, Transceivers Overview

The SN65LVDS9638DGKRG4 is a dual LVDS transmitter manufactured by Texas Instruments, designed for high-speed serial data transmission. It converts low-voltage TTL (LVTTL) inputs to differential LVDS outputs, supporting data rates up to 400 Mbps. The device operates on a single 3.3 V power supply with a voltage range of 3.0 V to 3.6 V. Housed in an 8-pin VSSOP package, it features a typical propagation delay of 1.7 ns and includes ESD protection. The component functions within a temperature range of -40°C to +85°C, ensuring reliable performance in industrial environments.

Drivers, Receivers, Transceivers Feature Summary

• Converts LVTTL logic levels to differential LVDS signals for noise-immune communication
• Supports high-speed data transfer rates up to 400 Mbps with low skew
• Integrates electrostatic discharge (ESD) protection on all pins

Drivers, Receivers, Transceivers Applications

• High-speed serial data links requiring LVDS signaling
• Point-to-point interconnects in industrial control systems
• Data acquisition systems utilizing LVTTL source interfaces

Drivers, Receivers, Transceivers Procurement Notes

Verify the complete part number including the suffix G4, which indicates RoHS compliance and green material status. Confirm the VSSOP-8 package variant matches the design footprint. Ensure the operating environment stays within the specified -40°C to +85°C range. Check for specific tape-and-reel packaging requirements if automated assembly is planned. Validate that the 3.3V supply rail meets the minimum 3.0V threshold for proper operation.

Drivers, Receivers, Transceivers Selection Notes

Select this component when a dual-channel LVDS driver is needed to interface LVTTL sources with LVDS receivers. It serves as a direct replacement for older UA9638 devices where LVDS signaling is required instead of RS422/RS485. Consider the VSSOP-8 package size constraints against available PCB real estate. Verify that the 400 Mbps speed requirement aligns with the system's clocking capabilities. Ensure compatibility with standard 100-ohm differential termination networks.

Drivers, Receivers, Transceivers Part Context

This device belongs to the SN65LVDS9638 family of dual LVDS transmitters from Texas Instruments. It is part of the broader SNx5LVDSxx series, which provides robust solutions for high-speed differential signaling. The family is known for meeting ANSI/TIA/EIA-644 standards. The DGKR suffix specifically denotes the VSSOP-8 surface-mount package with reel packaging, distinguishing it from SOIC or tube-packaged variants.

Drivers, Receivers, Transceivers Replacement Considerations

The UA9638 is a functional predecessor but uses RS422/RS485 outputs rather than LVDS. Direct pin-compatible replacements within the same LVDS family include the SN65LVDS9638D (SOIC package). Verify that any substitute maintains the 3.3V supply requirement and LVTTL input compatibility.