DS91M124TMA

Overview

The DS91M124TMA is an LVDS interface integrated circuit manufactured by Texas Instruments. It functions as a 1:4 M-LVDS repeater with four drivers and one receiver. The device supports data rates up to 250 Mb/s and accepts LVCMOS or LVTTL input signals, converting them to M-LVDS outputs. It operates on a single 3.3 V power supply with a voltage range of 3 V to 3.6 V. The component features a propagation delay of 6.5 ns and dissipates 2.21 W of power. It is housed in a 16-pin SOIC package and operates within a temperature range of -40°C to +85°C.

Feature Summary

• Converts single-ended LVCMOS or LVTTL inputs to differential M-LVDS signals for robust transmission
• Provides signal buffering and fan-out capabilities via a 1-to-4 driver configuration
• Operates reliably across industrial temperature ranges with low jitter performance

Applications

• High-speed digital signal distribution in industrial automation systems
• Clock distribution networks requiring LVCMOS to M-LVDS conversion
• Test and measurement equipment interfaces

Procurement Notes

Verify the specific suffix 'TMA' against the manufacturer's official datasheet to confirm pinout and electrical characteristics match your design requirements. Ensure the ordering code includes '/NOPB' if lead-free compliance is mandatory for your assembly process. Cross-reference the package type with your PCB footprint specifications before finalizing procurement.

Selection Notes

Select this component when interfacing standard logic levels with M-LVDS compliant receivers. It is suitable for applications requiring moderate data rates up to 250 Mb/s. Consider the DS91M125 variant if the input source is already differential LVDS rather than single-ended LVCMOS/LVTTL. Evaluate thermal dissipation requirements given the 2.21 W power consumption in the SOIC-16 package.

Part Context

This part belongs to the DS91M12x series of LVDS interface ICs from Texas Instruments. These devices are designed to bridge the gap between traditional single-ended logic families and high-performance differential signaling standards. The series provides reliable signal integrity solutions for short-to-medium distance interconnects in noisy environments.

Replacement Considerations

The DS91M125TMA/NOPB serves as a functional alternative but requires LVDS inputs instead of LVCMOS/LVTTL. Verify compatibility with existing board layouts and signal sources before substitution.