Diodes Incorporated
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PI3HDMI301 (Obsolete)

3:1 HDMI 2.5Gbps Switch with I2C control & ARC with ActiveEyeTM (For new design, see PI3HDMI336)

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Product Description

The PI3HDMI301 3:1 active switch circuit is targeted for high-resolution video networks that are based on DVI/HDMI™ standards and TMDS signal processing. The PI3HDMI301 is an active 3 TMDS to 1 TMDS receiver switch with Hi-Z outputs. The device receives differential signals from selected video components and drives the video display unit. It provides controllable output swings, as well as provides a unique advanced pre-emphasis technique to increase rise and fall times which are reduced during transmission across long distances.

Each complete HDMI/DVI channel also has slower speed, side band signals, that are required to be switched. DIodes' solution provides a complete solution by integrating the side band switch together with the high speed switch in a single solution. Using Equalization at the input of each of the high speed channels, Diodes can successfully eliminate deterministic jitter caused by long cables from the source to the sink. The elimination of the deterministic jitter allows the user to use much longer cables (up to 25 meters).

The maximum DVI/HDMI Bandwidth of 2.5 Gbps provides 36-bit Deep Color™ support, which is offered by HDMI™ revision 1.3. Due to its active uni-directional feature, this switch is designed for usage only for the video receiver’s side. For consumer video networks, the device sits at the receiver’s side to switch between multiple video components, such as PC, DVD, STB, D-VHS, etc. The PI3HDMI301 also provides enhanced robust ESD/EOS protection of 8kV, which is required by many consumer video networks today.

The Optimized Equalization provides the user a single optimal setting that can provide passing results for HDMI jitter tests for all cable lengths: 1meter to 20meters with DeepColor support up to 36bits.

Diodes also offers the ability to fi ne tune the equalization settings in situations where cable length is known. For example, if 25meter cable length is required, Diodes' solution can be adjusted to 16dB EQ to accept 25meter cable length.


  • Supply voltage, VDD = 3.3V ±5%
  • Each of the three input ports can support HDMI™ or DVI signals
  • Supports both AC-coupled and DC-coupled inputs
  • Supports DeepColor™
  • High Performance, up to 2.5 Gbps per channel
  • Switching support for 3 side band signals (SCL, SDA and HPD)
  • 5V Tolerance on all side band signals
  • SCL, SDA, and HPD pins are the only pins that can support HOT INSERTION
  • Integrated 50-ohm (±10%) termination resistors at each high speed signal input
  • TMDS input termination control on all high speed inputs
  • HDCP reset circuitry for quick communication when switching from one port to another
  • Configurable output swing control
  • Configurable Pre-Emphasis levels
  • Configurable De-Emphasis
  • Optimized Equalization Single default setting will support all cable lengths
  • 8kV Contact ESD protection on all input data/clock channels per IEC61000-4-2
  • Propagation delay ≤ 2ns
  • High Impedance Outputs when disabled
  • Packaging (Pb-free & Green):
    − 80-pin LQFP (FF80)
    − 64-pin TQFN (ZL64)


Product Specifications

Product Parameters

Channels/In 12
Channels/Out 4
Inputs HDMI
Outputs HDMI
Ports/In 3
Ports/Out 1
Power Supply 3.3
Speed (Gbps) 2.5
Type Active Switch

Technical Documents

Application Information

Evaluation Boards and User Guides

Recommended Soldering Techniques


Product Change Notices (PCNs)

A PCN may only apply to specific orderable part numbers in this datasheet. Please refer to the corresponding PCN to see the exact orderable part number(s) affected.

PCN # Issue Date Implementation Date Subject
PCN-2602 2023-01-31 2023-07-31 Device End of Life (EOL)
PCN-2567 2022-03-30 2022-09-30 Device End of Life (EOL)
PCN-2328 2018-04-12 2018-10-12 Device End of Life for tray packaging only


Related Application FAQs

Related Protocol FAQs