Diodes Incorporated PI3WVR13412ZHEX

Overview

PI3WVR13412ZHEX from Diodes Incorporated is a multi-standard 4-lane, 1:2/2:1 video switch supporting DisplayPort 1.3/1.4 and HDMI 2.0 with 8.1 Gbps per lane, -1.6 dB insertion loss at 4.05 GHz, and 3.3 V ±10% supply. It routes high-speed differential video signals between GPU sources and dual display sinks in compact PC, monitor, and broadcast equipment.

For engineers reviewing the PI3WVR13412ZHEX datasheet, PI3WVR13412ZHEX pinout, PI3WVR13412ZHEX application, or PI3WVR13412ZHEX equivalent, key selection criteria include DP/HDMI co-support, DC-coupled operation up to 1.2 Vpp differential with 0–3.4 V common-mode range, low skew (35 ps max channel-to-channel), and TQFN-42 package compatibility for dense PCB layouts.

Technical Context

The device integrates two independent 4-lane high-speed switch matrices (A and B paths) with shared DDC/AUX and HPD mux/demux logic, enabling seamless source selection between two GPU outputs or sink routing to dual displays. Its architecture supports RBR, HBR1, HBR2, and HBR3 link rates without AC coupling.

DC-coupled signal handling across 0–3.4 V common-mode enables interoperability between DisplayPort (Vcm ≈ 0 V) and HDMI (Vcm ≈ 1.2 V) without level-shifting circuitry. The 7 GHz -3 dB bandwidth and -35 dB crosstalk at 4.05 GHz ensure integrity for 4K2K@60Hz HDMI 2.0 and DP 1.4 UHBR10-equivalent signaling.

Key Specifications

Pinout & Package

Package: 42-pin, 3.5 mm × 9 mm, Very Thin Quad Flat No-Lead (TQFN-ZH), RoHS-compliant and halogen-free.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar multi-standard video switching applications.

Compared with TS3DV642RHAR and PI3WVR13411ZHEX, the PI3WVR13412ZHEX uniquely combines bidirectional DP/HDMI co-support, DC-coupling, and dual-sink routing control-enabling unified video infrastructure for hybrid GPU architectures without signal degradation or protocol bridging.

Availability

PI3WVR13412ZHEX is available at Aetrix Electronics and suitable for PC docking stations, broadcast video equipment, gaming laptop eGPU hubs, and medical imaging display systems requiring stable component supply and long-term design-in assurance.

Supply support for PI3WVR13412ZHEX includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Diodes Incorporated is a global manufacturer of discrete semiconductors and integrated circuits, specializing in high-performance analog, logic, and protection devices for computing, consumer, and industrial markets.

The PI3WVR13412 belongs to Diodes' high-speed video interface product line, engineered specifically for multi-standard, low-skew, DC-coupled video routing in space-constrained, thermally demanding embedded graphics systems.

FAQ

What voltage levels does the PI3WVR13412ZHEX support for HDMI and DisplayPort signals?

The device supports DC-coupled operation with differential amplitudes up to 1.2 V_PP and a common-mode range of 0–3.4 V. This covers HDMI's typical 1.2 V common-mode and DisplayPort's near-0 V common-mode without level shifters or AC coupling capacitors-enabling direct connection to both standards' physical layers.

Can the PI3WVR13412ZHEX be used in a 2:1 configuration to select between two GPUs driving one display?

Yes. When configured in 2:1 mode using GPU_SEL and OE controls, it selects either Group A or Group B high-speed lanes to drive a single downstream display while concurrently routing the corresponding DDC/AUX and HPD signals-preserving full EDID handshake and hot-plug functionality for whichever GPU is active.

Does the PI3WVR13412ZHEX require external termination resistors for high-speed lanes?

No. The device integrates 100 Ω differential termination on all high-speed I/O pins (Dx+/Dx−, Dx+A/Dx-A, etc.), eliminating the need for external 100 Ω resistors. This reduces layout complexity and improves impedance matching consistency across all 24 high-speed signal paths.

How is HPD and DDC handled when switching between DisplayPort and HDMI sources?

The PI3WVR13412ZHEX uses dedicated DDC/AUX_HPD_SEL logic to route either I²C-based DDC (for HDMI) or AUX channel (for DP) alongside HPD to the selected output. This ensures correct sideband protocol behavior: HDMI sinks receive DDC clock/data and HPD, while DP sinks receive AUX+/- and HPD-no external protocol-aware mux required.