TS3DV642A0RUAR

• 12-Channel 2-to-1 Multiplexer and demultiplexer, 24 Inputs to 12 Outputs
• 7.5 Gigahertz Signal Bandwidth
• 40 Ps Propagation Delay and 10.5 Ohm Channel Resistance
• 2.6V to 4.5V Supply operation, 50 uA Operating Supply Current
• 42-Pin WQFN package, 9mm by 3.5mm, 800um Maximum Height
• -40C to 85C Operating range, Gold Contact Plating

The Texas Instruments TS3DV642A0RUAR is a 12-channel 2-to-1 analog multiplexer and demultiplexer with 24 inputs and 12 outputs, supplied in a 42-pin WQFN measuring 9mm by 3.5mm with an 800um height. It offers 7.5 GHz bandwidth, 40 ps propagation delay and 10.5 Ohm channel resistance, which is what allows it to pass high-speed differential signals rather than only logic-level lines. The device operates from a 2.6V to 4.5V supply at 3V nominal, drawing 50 uA of operating supply current, and is specified from -40C to 85C. It uses gold contact plating, is lead-free and RoHS compliant, and is supplied in tape and reel.

Wide, high-bandwidth analog switches such as the TS3DV642A0RUAR are used to route complete high-speed differential links rather than single signals - twelve channels amounts to six differential pairs, which is the width of a video or serial interface plus its clock. Typical uses are selecting between two video sources or two display connectors, muxing an internal panel against an external output in a notebook, and routing lanes in docking stations, KVM switches and switch-matrix test fixtures. The 7.5 GHz bandwidth and 40 ps propagation delay are the figures that decide whether the switch is transparent to the link or becomes the limiting element in the channel budget. The 50 uA supply current means the switch itself adds almost nothing to the system power budget.