PI3PCIE3212ZBE+DAX

Analog Switches - Special Purpose Overview

The PI3PCIE3212ZBE+DAX is a PCI Express 3.0, 8Gbps, 4-to-2 differential, bidirectional-channel multiplexer/demultiplexer switch manufactured by Diodes Incorporated. It operates on a single 3.3V ± 10% supply voltage with a typical current consumption of 0.2mA and supports an industrial temperature range from -40°C to 85°C. The device features a 3dB bandwidth of 8.1GHz, low bit-to-bit skew of 10ps maximum, and low channel-to-channel skew of 20ps maximum. Electrical performance includes insertion loss of -1.7dB at 4GHz, return loss of -13.5dB at 4GHz, crosstalk of -32dB at 4GHz, and off-isolation of -21dB at 4GHz. It is available in a 20-contact TQFN (2.5 × 4.5mm) package.

Analog Switches - Special Purpose Feature Summary

• Supports PCI Express 3.0 performance at 8.0Gbps with bidirectional operation capability.
• Provides low signal distortion through minimal bit-to-bit and channel-to-channel skew specifications.
• Ensures high signal integrity via low insertion loss, return loss, and crosstalk metrics.
• Operates with low power consumption and complies with RoHS and green manufacturing standards.

Analog Switches - Special Purpose Applications

• Switching PCI Express 3.0 lane outputs between two inputs in notebook computers.
• Signal routing for desktop PCs and server systems.
• Integration into other embedded devices requiring PCIe signal switching.
• Routing DP1.2, USB3.0, SAS2.0, SATA3.0, XAUI, and RXAUI signals.

Analog Switches - Special Purpose Procurement Notes

Verify the component authenticity by checking the manufacturer marking against the datasheet specifications. Confirm the package type matches the required footprint, specifically the 20-contact TQFN variant for this suffix. Ensure the ordering code aligns with the specific tape and reel requirements for automated assembly processes.

Analog Switches - Special Purpose Selection Notes

Select this component when designing circuits that require switching PCI Express 3.0 lanes at 8Gbps speeds. Consider the 20-contact TQFN package dimensions if board space is constrained. Evaluate the electrical characteristics such as the 8.1GHz bandwidth and low skew values to ensure compatibility with high-speed signal integrity requirements.

Analog Switches - Special Purpose Part Context

This part belongs to the PI3PCIE3212 product line from Diodes Incorporated, designed for high-speed serial signal routing. It serves as a specialized interface IC within the broader category of multiplexer and demultiplexer switches, targeting applications demanding reliable data transmission over PCIe interfaces.

Analog Switches - Special Purpose Replacement Considerations

The datasheet lists the PI3PCIE3212XUAEX as an alternative package option using the 18-pin X2QFN format. Verify pinout compatibility and physical dimensions before substituting, as the package change may impact PCB layout requirements.

Analog Switches - Special Purpose FAQ

What are the control logic states for selecting output ports?

When SEL is Low and PD is Low, Port A connects to Port B. When SEL is High and PD is Low, Port A connects to Port C. Setting PD to High places all ports in Hi-Z and powers down the IC.

Does the device support signals other than PCI Express?

Yes, the PI3PCIE3212 can route DisplayPort 1.2, USB 3.0, SAS 2.0, SATA 3.0, XAUI, and RXAUI signals due to its low signal attenuation capabilities.

What is the maximum propagation delay for this switch?

The maximum propagation delay is 36ps for LOW to HIGH transitions and 39ps for HIGH to LOW transitions under recommended operating conditions.