PI2DBS412ZHEX

Analog Switches - Special Purpose Overview

The PI2DBS412ZHEX is a differential broadband signal switch manufactured by Diodes Incorporated, housing the Pericom PI2DBS412 die in a 42-contact TQFN package. It functions as an 8-to-4 differential channel multiplexer/demultiplexer with a single enable pin. The device supports data rates up to 3Gbps and features a -3dB bandwidth of 1.8 GHz. Operating voltage ranges from +1.5V to +2.0V, with a typical quiescent current of 200 μA at 1.8V. Key electrical specifications include low crosstalk (-68 dB @ 10 MHz) and off-isolation (-77 dB @ 10 MHz). It provides ESD protection of 8kV HBM on I/O pins and 2kV HBM on the select pin.

Analog Switches - Special Purpose Feature Summary

• Bi-directional 2:1 Mux/DeMux switching capability for four differential channels
• Low bit-to-bit skew and minimal signal degradation for high-speed integrity
• Single-pin control logic simplifies interface requirements

Analog Switches - Special Purpose Applications

• Routers and network switches
• Server infrastructure
• Notebook computers
• Medical equipment

Analog Switches - Special Purpose Procurement Notes

Verify the component origin carefully, as the datasheet identifies Pericom Semiconductor as the original designer while Diodes Incorporated handles distribution. Confirm that the ZH suffix corresponds to the 42-contact TQFN package and that the E/X suffixes denote Pb-free/Green status and tape/reel packaging respectively. Ensure compatibility with the specified 1.5V to 2.0V supply range during procurement planning.

Analog Switches - Special Purpose Selection Notes

Select this component when designing systems requiring bidirectional routing of differential signals up to 3Gbps. It is suitable for applications needing low crosstalk and high off-isolation within a compact footprint. Consider using Re-Driver devices alongside this switch if long trace lengths are present to maintain signal integrity standards required by SAS, SATA, or InfiniBand protocols.

Analog Switches - Special Purpose Part Context

This part belongs to the Pericom differential signal switch family, originally designed by Pericom Semiconductor Corporation before being acquired or distributed by Diodes Incorporated. It targets high-speed serial communication standards including SAS, SATA I/II, InfiniBand, HyperTransport, and RapidIO. The device serves as a critical interconnect solution for managing bandwidth allocation between multiple sources and receivers.

Analog Switches - Special Purpose Replacement Considerations

Direct replacements must match the 42-contact TQFN (ZH) package and support 1.8V operation with similar 3Gbps bandwidth. Verify pinout compatibility for the A0-A7 inputs and B1/B2 outputs. Check if alternative suppliers offer equivalent crosstalk and isolation metrics for high-speed differential signaling.