PI3DBS12412AZHEX

Analog Switches - Special Purpose Overview

The PI3DBS12412AZHEX is a 3.3V, 10-12Gbps 2-lane multiplexer/demultiplexer switch manufactured by Diodes Incorporated. It features four differential channels configured as a 2:1 mux/demux circuit with bidirectional operation. The device supports data rates up to 12Gbps for SAS 3.0 applications and is compatible with Thunderbolt signaling at 10.3125Gbps, 10Gbps Ethernet, and USB 3.1. Key electrical parameters include a 3dB bandwidth of 11.3 GHz, low bit-to-bit skew of 1ps typical, and low channel-to-channel skew of 7ps typical. Insertion loss is -1.4dB at 5 GHz and -1.5dB at 6 GHz. Return loss measures -19.3dB at 5 GHz and -17.3dB at 6 GHz. Crosstalk is -30.5dB at 6 GHz, and off-isolation is -17.1dB at 6 GHz. Typical supply current is 400 μA. It operates within an industrial temperature range of -40°C to 85°C and utilizes a 42-contact TQFN (ZH42) package measuring 3.5x9mm.

Analog Switches - Special Purpose Feature Summary

• Supports high-speed differential signal routing including SAS 3.0, Thunderbolt, 10G Ethernet, PCI-Express 3.0, and USB 3.1
• Minimizes impedance to reduce attenuation and optimize layout for high-speed signals
• Provides low skew and crosstalk performance suitable for demanding interface requirements
• Features bidirectional switching capability with low power consumption

Analog Switches - Special Purpose Applications

• Routing Thunderbolt signals
• SAS 3.0 application interconnects
• 10 Gigabit Ethernet connections
• PCI-Express 3.0 expansion slots
• USB 3.1 peripheral interfaces

Analog Switches - Special Purpose Procurement Notes

Verify the specific package variant when ordering, as the PI3DBS12412A series is available in both 40-contact and 42-contact TQFN packages. Confirm that the AZHEX suffix corresponds to the 42-contact ZH42 package configuration required for your design. Ensure compatibility with 3.3V supply rails and check lead times directly with authorized distributors or the manufacturer for accurate delivery schedules.

Analog Switches - Special Purpose Selection Notes

Select this component for designs requiring bidirectional switching of multiple high-speed differential pairs. It is appropriate for systems needing to route signals between different sources or destinations without significant signal degradation. Consider the low skew characteristics if precise timing alignment between lanes is critical. Verify that the 3.3V operating voltage aligns with the system power architecture and that the thermal performance meets the requirements for the intended industrial temperature range.

Analog Switches - Special Purpose Part Context

This part belongs to the PI3DBS12412A family of high-speed mux/demux switches from Diodes Incorporated (formerly Pericom). The family includes variants with different packaging options, such as the 40-contact TQFN version. These devices are designed to replace discrete switching solutions, offering a compact footprint and integrated performance optimization for modern high-bandwidth interfaces.

Analog Switches - Special Purpose Replacement Considerations

Check for direct pin-compatible alternatives within the same product family. Verify that any substitute maintains the 12Gbps data rate support and 3.3V operation. Ensure the replacement package matches the PCB footprint, specifically distinguishing between the 40-contact and 42-contact TQFN options.