The DS40MB200 device is a dual signal conditioning 2:1 multiplexer (MUX) and 1:2 fan-out buffer designed for use in backplane-redundancy applications. Signal conditioning features include continuous time linear equalization (CTLE) and programmable output pre-emphasis, extending data communication in FR4 backplanes at rates up to 4 Gbps. Each input stage has a fixed equalizer to reduce intersymbol interference distortion from board traces.
All output drivers have four selectable steps of pre-emphasis to compensate for transmission losses from long FR4 backplanes and reduce deterministic jitter. The pre-emphasis levels can be independently controlled for the line-side and switch-side drivers. The internal loopback paths from switch-side input to switch-side output enable at-speed system testing. All receiver inputs are internally terminated with 100-Ω differential terminating resistors. All drivers are internally terminated with 50 Ω to VCC.
| Top documentation | Type | Title | Format options | Date |
|---|---|---|---|---|
| * | Data sheet | DS40MB200 Dual 4-Gbps 2:1/1:2 CML MUX/Buffer With Transmit Pre-Emphasis and Receive Equalization datasheet (Rev. K) | PDF | HTML | Mar 1, 2024 |
| Application note | Setting Pre-Empha Level for DS40MB200 Dual 4Gb/s Mux/Buffer (Rev. C) | Apr 26, 2013 | ||
| Application note | AN-1398 Printed Circuit Board Design Techniques for DS40MB200 (Rev. A) | Apr 26, 2013 | ||
| Application note | Enabling Redundancy in Multi-Gigabit Links w/DS40MB200 Mux/Buffer (Rev. A) | Apr 26, 2013 | ||
| Application note | Driving Signals Over XAUI Backplanes Using DS42MB100, DS40MB200, or DS42BR400 (Rev. B) | Apr 26, 2013 |
For additional terms or required resources, click any title below to view the detail page where available.
| Package | Pins | CAD symbols, footprints & 3D models |
|---|---|---|
| WQFN (NJU) | 48 | Ultra Librarian |
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