SN65LVDM22DG4

Overview

The SN65LVDM22DG4 is a dual multiplexed LVDS repeater manufactured by Texas Instruments. It doubles the output drive current to achieve LVDS levels with a 50-Ω load, supporting data rates up to 250 Mb/s and clock rates up to 200 MHz. The device operates on a single 3.3 V supply with a typical propagation delay of 4 ns and power consumption of 150 mW at 400 Mbps. It features ESD protection exceeding 12 kV, high impedance states when disabled, and 5 V tolerant LVTTL inputs. The component is housed in a 16-pin SOIC package.

Feature Summary

• Multiplexer control allows receiver outputs to switch between two drivers or connect simultaneously for signal splitting and routing.
• Doubled output drive current enables LVDS signaling compliance specifically with 50-Ω loads.
• Bus pins exhibit high impedance during disable states or low voltage conditions, enhancing system stability.

Applications

• High-speed video transmission systems
• Data distribution networks requiring signal splitting
• Communication interfaces needing flexible signal routing

Procurement Notes

Verify the specific suffix DG4 indicates lead-free status and RoHS compliance as per manufacturer specifications. Confirm the SOIC-16 package dimensions match your PCB footprint requirements. Ensure the 3.3 V supply voltage aligns with your system's power architecture. Check for any recent product change notifications regarding availability or manufacturing location updates.

Selection Notes

Choose this component when a design requires driving LVDS signals into 50-Ω loads, which differs from standard 100-Ω LVDS applications. Select it for circuits needing active signal splitting or dynamic routing between multiple sources using S0 and S1 control lines. Consider its 5 V tolerant inputs if interfacing with higher voltage logic families without additional level shifting.

Part Context

This part belongs to the SN65LVDM series of low-voltage differential signaling interface devices. It is functionally related to the SN65LVDS22 but optimized for 50-Ω impedance environments. The device shares pin compatibility with TI's SN65LVDS122 and SN65LVDT122 crosspoint switches, facilitating easier upgrades in existing designs.

Replacement Considerations

SN65LVDS22DG4 serves as a direct functional alternative for 100-Ω load applications, though drive current characteristics differ. Designers must verify load impedance compatibility when substituting between the LVDM and LVDS variants.