PI3WVR31212AZLE

Overview

The PI3WVR31212AZLE 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 1.4b at 3.4Gbps. The device operates on a single 3.3V supply and includes four high-speed differential channels plus AUX, DDC, HPD, and CAB_DET signal paths. It supports both pin control and I2C modes for auto port priority selection based on Hot Plug Detect signals.

Feature Summary

• Integrates a passive DP output port and an active DP-to-HDMI level shifter port within a single component.
• Supports automatic port selection logic driven by HPD status and configurable priority settings.
• Offers flexible equalization and pre-emphasis configuration via I2C or pin control for the active HDMI port.
• Includes Type 2 cable ID register support and squelch mode to prevent noise on sink displays.

Applications

• Notebook computers requiring dual-mode video output switching.
• Video dongles and adapters converting DisplayPort sources to HDMI sinks.
• Docking stations managing multiple display interfaces.

Procurement Notes

Verify the specific ordering suffix against the manufacturer's documentation to confirm packaging type. The 'ZLE' suffix indicates a lead-free, green TQFN package, while adding an 'X' suffix denotes tape and reel availability. Confirm the exact part number matches the required quantity format before finalizing procurement orders.

Selection Notes

Select this component when a design requires switching between a passive DisplayPort output and an active HDMI output from a single source. Ensure the application utilizes a 3.3V power supply and accommodates the 60-pin TQFN footprint. Verify that the chosen control method (pin or I2C) aligns with the system's available interface resources.

Part Context

This device belongs to the PI3WVR series of video switches produced by Diodes Incorporated under its Pericom product line. It is designed to facilitate signal routing in portable electronics where space constraints necessitate integrating multiple video interface functions into a compact form factor.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Consult the manufacturer's official cross-reference tools for potential alternatives if this specific model is unavailable.

FAQ

How does the device handle port selection?

The PI3WVR31212A supports automatic port selection based on HPD signals. If only one port detects a connection, it is selected. If both detect connections, the PRI_SEL pin determines the priority order between Port 1 and Port 2.

What is the maximum data rate supported by the passive port?

The passive output port (Port 1) supports DisplayPort 1.2 signals with a maximum data rate of 5.4Gbps.

Can the active port be configured without I2C?

Yes, the device supports pin control mode. In this mode, equalization and pre-emphasis settings for the active port can be configured using dedicated pins rather than I2C commands.