Mixed Signal/Analog

Mux-demux switch supports USB 3.2 up to 10 Gbps

30th June 2020
Mick Elliott

Now available at Digi-Key is Texas Instruments' TMUXHS4212, a high-speed bidirectional passive switch in mux or demux configurations.

This switch is suited for applications such as USB Type-C and PCI Express.

The TMUXHS4212 is a generic analogue differential passive mux or demux that works for high-speed differential interfaces with data rates up to 16 Gbps.

It can be used for higher data rates where the electrical channel has signal integrity margins. The device supports differential signalling with a common-mode voltage range (CMV) of 0 V to 1.8 V and with differential amplitude up to 1,800 mVPP.

Adaptive CMV tracking ensures the channel through the device remains unchanged for the entire common-mode voltage range.

The dynamic characteristics of this switch allow high-speed switching, minimum attenuation to the signal eye diagram, and with very little added jitter.

The silicon design is optimised for excellent frequency response at the higher frequency spectrum of the signals.

Silicon signal traces and switch network are matched for best intra-pair skew performance. The TMUXHS4212 has an extended industrial temperature range that suits many rugged applications including industrial and high-reliability use cases.

It supports USB 3.2 up to 10 Gbps (Gen 2.0) and PCI Express up to 16 Gbps (Gen 4.0) and SATA, SAS, MIPI DSI/CSI, FPDLink III, LVDS, SFI, and Ethernet interfaces.

The dvice has an industrial temperature range of -40° to +105°C and comes in a 2.5 mm x 4.5 mm QFN package.

Applications include PCs and notebooks, smartphones, tablets, and TVs, gaming, home theatres, and entertainment, data centres and enterprise computing, medical applications, test and measurement, factory automation and controls, aerospace and defence, electronic point of sale (EPOS) and wireless infrastructure.

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