32Gbps 2:1 multiplexer/1:2 demultiplexer switches for high-speed signals

Toshiba Electronics Europe GmbH has released two new switches, the TDS4A212MX 2:1 multiplexer (Mux) and TDS4B212MX 1:2 demultiplexer (De-Mux), developed for up to 32Gbps high-speed differential signalling. Housed in a compact package, the devices support PCIe 5.0, USB4 Ver.2, Thunderbolt 4 and DisplayPort 2.0 to connect and expand peripheral devices in applications such as PCs, server equipment, mobile devices and more.

The two new products offer a -3dB bandwidth (differential) of 26.2GHz or 27.5GHz (typ.) at a maximum DC current in an active mode of 150µA, providing high signal integrity levels. The company attains these high-performance characteristics by adopting its original SOI-CMOS front-end process technology, TaRFSOI.

The differential signal operating range is 0V to 2.0V for common mode voltage and a 0V to 1.8 Vpp for differential voltage swing, supporting a broad range of differential interface standards. In standby mode, the current consumption can be reduced to 10µA and below to conserve power consumption. The new devices can operate in ambient temperatures from -40C to +85C.

Housed in a tiny XQFN16 2.4mm x 1.6mm package with a 0.4mm profile, the two devices address the needs of engineers looking for PCB real-estate miniaturisation. The TDS4B212MX has an optimised pinout to achieve high-frequency performance, while the TDS4A212MX’s pinout eases the circuit board layout.

In addition to these two new high-performance devices for USB4, PCIe Gen 4, and Thunderbolt 4, the company has also increased the range available from Farnell for other high-speed bus switches. These would be suitable for USB 2.0, PCIe Gen1, GPIO in 5V and low voltage, and level shifting devices for I²C type interfaces. This provides design engineers with a wide selection of bus switch and level shift options.