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The PI3HDMI101-B 1:1 active ReDriverTM circuit is targeted for high-resolution video networks that are based on DVI/HDMITM standards and TMDS signal processing. The PI3HDMI101-B is an active ReDriver with Hi-Z outputs. The device receives differential signals from selected video com- ponents and drives the video display unit. This solution also 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' solu- tion provides a complete solution by integrating the side band buffer together with the high speed buffer in a single solution. Using Equalization at the input of each of the high speed chan- nels, Diodes can successfully eliminate deterministic jitter caused by long cables from the source to the sink. The elimina- tion 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 DeepColorTM support, which is offered by HDMI revision 1.3. The PI3HDMI101-B 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 HDMI compliance for all cable lengths: 1 meter to 20 meters and color depths of 8bit/ch, or 12bit/ch.
Diodes also offers the ability to fine tune the equalization set- tings in situations where cable length is known. For example, if 25 meter cable length is required, Diodes' solution can be adjusted to 16dB EQ to accept 25 meter cable length.
Using Diodes' patent-pending Rx termination detection circuit, PI3HDMI101-B can automatically disable its own input 50-Ohm termination when no 50-Ohm termination is detected in the HDMI Rx chipset. If a switch is used between the PI3HDMI101-B and the HDMI Rx, our part can detect the 50-Ohm termination in the switch to determine if our input should be off or on.
Supply voltage, VDD = 3.3V ±5%
Support for both DVI and HDMITM signals
Supports both AC-coupled and DC-coupled inputs
High Performance, up to 2.5 Gbps per channel
5V Tolerance on I2C path
Integrated 50-ohm (±10%) termination resistors at each high speed signal input
Integrated Rx termination detection circuit Configurable output swing control