Are there Mux (multiplexer) / De-Mux (demultiplexer) type bus switches supporting PCIe® Gen 5.0, PCIe® Gen 4.0, Thunderbolt™ 4, USB4®?
For a bus switch to support these communication interfaces, it must have high-frequency characteristics sufficient for their communication speeds. Toshiba product TDS4A212MX, TDS4B212MX support these interfaces.
Both TDS4A212MX and TDS4B212MX support PCIe®*1 Gen 5.0, PCIe®*1 Gen 4.0, Thunderbolt™*2 4 and USB4®*3 and have the same functional and identical packaging with differing pinouts.
| Item | TDS4A212MX | TDS4B212MX |
|---|---|---|
| Operaring Supply voltage | 1.6 to 3.6V | |
| -3dB Bandwidth | 26.2GHz | 27.5GHz |
| Differential Insertion loss@16GHz |
-1.9dB | -1.4dB |
| Differential return loss@16GHz |
-18dB | -16dB |
| Differential OFF isolation @16GHz |
-11dB | -14dB |
| Differential Crosstalk @16GHz |
-30dB | -36dB |
The features of each pin arrangement are described below.
TDS4A212MX maintains the input-differential-pair positional relationship in its pinout. Therefore, the wiring does not cross in the layout shown in Fig. 2.
The TDS4B212MX has a shorter internal wiring pin layout to reduce signal attenuation. Therefore, it has higher high-frequency characteristics than the TDS4A212MX.
Please refer to the following technical articles and application notes for the Eye Pattern evaluation using the S-parameter and PCIe®5-signal.
Technical article: Bus switch supporting high-speed digital signals of PCIe® Gen 5.0 and USB4®
Application Note: For high-speed differential interface 32Gbps MUX/DEMUX bus switch TDS4A212MX, TDS4B212MX (PDF: 1.58MB)
Related Links
The following documents also contain related information.
FAQs
Product Lists
Application Notes
- CMOS Logic ICs Selection Guide (PDF: 759KB)
- CMOS Logic ICs Usage Considerations (PDF: 1.61MB)
- Basics of CMOS Logic ICs (PDF: 1.21MB)
- Glossary of CMOS Logic ICs (PDF: 417KB)
- CMOS Logic ICs Standard series (PDF: 1.37MB)
- For high-speed differential interface 32Gbps MUX/DEMUX bus-switch TDS4A212MX, TDS4B212MX (PDF: 1.6MB)
Catalog
*1: PCIe® is a trademark of PCI-SIG.
*2: Thunderbolt™ is a trademark of Intel Corporation or its subsidiaries.
*3: USB4® is a trademark of USB Implementers Forum.