TMDS Digital Video Equalizer for DVI/HDMI Cables

The MAX3815 cable equalizer automatically provides compensation for DVI™, HDMI™, DFP, PanelLink®, and ADC cables. It extends the usable cable distance up to 36 meters. The MAX3815 is designed to equalize signals encoded in the transition-minimized differential signaling (TMDS®) format.

The MAX3815 features four CML-differential inputs and outputs (three data and one clock). It provides a loss-of-signal (LOS) output that indicates loss-of-clock signal. The outputs include a disable function or the equalizer can be powered down to conserve power. For direct chip-to-chip communication, the output drivers can be switched to one-half the DVI output specification to conserve power and reduce EMI. Equalization can be automatic or set to manual control for specific in-cable applications.

The MAX3815 is available in a 7mm x 7mm, 48-pin TQFP-EP package and operates over a 0°C to +70°C temperature range.

Applications

* DVI/HDMI Cable-Extender Modules and Active Cable Assemblies * Front-Projector DVI/HDMI Inputs * High-Definition Televisions and Displays * LCD Computer Monitors

* Extends TMDS Cable Reach to Projectors or Monitors Using DVI, DFP, PanelLink, ADC, or HDMI Interfaces

* Extends TMDS Interface Length as Follows:

* 0 to 50 Meters Over DVI-Cable, 24 AWG STP (Shielded-Twisted Pair)

* 0 to 36 Meters Over DVI-Cable, 28 AWG STP

* 0 to 30 Meters Over DVI-Cable, 30 AWG STP

* Compatible with DTV Resolutions 480i, 480p, 720p, 1080i, and 1080p

* Compatible with Computer Resolutions VGA, SVGA, XGA, SXGA, UXGA

* Fully Automatic Equalization Up to 40dB at 825MHz (1.65Gbps), No System Control Required

* 3.3V Power Supply

* Power Dissipation of 0.6W (typ)

* 7mm x 7mm 48-Pin TQFP Lead-Free Package