PI3WVR31212ZLE

Overview

The PI3WVR31212ZLE is a DP/HDMI 1:2 de-multiplexer switch manufactured by Diodes Incorporated. It features one passive output port (Port 1) supporting DisplayPort 1.2 at 5.4Gbps and one active output port (Port 2) with an integrated DP-to-HDMI re-driver supporting HDMI 1.4 at 3.4Gbps. The device operates on a 3.3V supply voltage, ranging from 3.0V to 3.6V. It includes four high-speed differential channels plus AUX/DDC, HPD, and CAB_DET signal channels. Control is available via pin mode or I2C interface, offering auto and manual port priority selection. Port 2 supports up to 8 levels of equalization and 5 levels of pre-emphasis in I2C mode. The component is housed in a 60-pin TQFN package measuring 5x9mm.

Feature Summary

• Integrates a passive DisplayPort output path alongside an active DisplayPort-to-HDMI level shifter for dual-standard compatibility.
• Supports both automatic and manual port priority selection through configurable pin control or I2C interfaces.
• Provides programmable signal conditioning on the active HDMI port, including multiple equalization and pre-emphasis settings.
• Includes dedicated auxiliary, DDC, Hot Plug Detect, and Cable Detect signal routing capabilities.

Applications

• Notebook computers

Procurement Notes

Verify the specific ordering suffix against manufacturer documentation to confirm packaging type. The base part number indicates standard tube packaging, while adding an 'X' suffix denotes tape and reel configuration. Confirm RoHS compliance status and lead times directly with authorized distributors or the manufacturer prior to procurement.

Selection Notes

Select this component when designing systems requiring simultaneous support for DisplayPort and HDMI outputs from a single source. Ensure the design accommodates the 3.3V power supply requirements and utilizes the appropriate control mode (pin vs. I2C) based on system complexity. Verify that the target application fits within the specified operating temperature range and package thermal constraints.

Part Context

This device belongs to the Pericom video switch family, now under Diodes Incorporated. It serves as a bridge solution for mobile platforms needing to drive different display standards. The ZLE suffix identifies the specific 60-pin TQFN package variant used in compact form-factor designs.

Replacement Considerations

Check for updated revisions within the PI3WVR31212 series. No direct cross-model substitutes are confirmed in public documentation; verify pinout and electrical compatibility if considering alternative vendors.

FAQ

What is the maximum data rate supported by the passive Port 1?

Port 1 supports DisplayPort 1.2 signals at a maximum data rate of 5.4Gbps.

How does the device handle port selection?

It supports automatic selection based on HPD signals or manual selection via I2C registers. Priority can be configured using the PRI_SEL pin or I2C commands.

Can the HDMI output on Port 2 be configured?

Yes, Port 2 allows for 8 levels of equalization and 5 levels of pre-emphasis adjustment via I2C control to optimize signal integrity.