Catalog
4:1 HDMI/DVI Switch with Equalization
Key Features
• 4 inputs, 1 output HDMI™/DVI links
• Enables HDMI 1.3-compliant receiver
• Pin-to-pin compatible with the AD8191
• 4 TMDS®channels per linkSupports 250 Mbps to 2.25 Gbps data ratesSupports 25 MHz to 225 MHz pixel clocksEqualized inputs for operation with long HDMI cables (20 meters at 2.25 Gbps)Fully buffered unidirectional inputs/outputs
• Globally switchable, 50 Ω on-chip terminationsPre-emphasized outputsLow added jitterSingle-supply operation (3.3 V)
• 4 auxiliary channels per linkBidirectional unbuffered inputs/outputsFlexible supply operation (3.3 V to 5 V)HDCP standard compatibleAllows switching of DDC bus and 2 additional signals
• Multiple channel bundling modes1× (4:1) HDMI/DVI link switch (default)2× (8:1) TMDS channel and auxiliary signal switch1× (16:1) TMDS channel and auxiliary signal switch
• Output disable featureReduced power dissipationRemovable output terminationAllows building of larger arrays
• Two AD8197s support HDMI/DVI dual-link
• Standards compatible: HDMI receiver, HDCP, DVI
• Serial (I2C®slave) and parallel control interface
• 100-lead, 14 mm × 14 mm LQFP, Pb-free package
Description
AI
The AD8197 is an HDMI™/DVI switch featuring equalized TMDS®inputs and pre-emphasized TMDS outputs, ideal for systems with long cable runs. Outputs can be set to a high impedance state to reduce the power dissipation and/or to allow the construction of larger arrays using the wire-OR technique. Flexible channel bundling modes (for both the TMDS channels and the auxiliary signals) allow the AD8197 to be configured as a 4:1 single HDMI/DVI link switch, a dual 8:1 switch, or a single 16:1 switch.The AD8197 is provided in a 100-lead LQFP, Pb-free, surface-mount package, specified to operate over the −40°C to +85°C temperature range.ul { margin-top:0px; margin-right:0px; margin-bottom:0px; margin-left:15px; padding-top:0px; padding-right:0px; padding-bottom:10px; padding-left:0px;} li { padding-top:0px; padding-right:0px; padding-bottom:5px; padding-left:0px; margin-top:0px; margin-right:0px; margin-bottom:0px; margin-left:0px;} ol { margin-top:0px; margin-right:0px; margin-bottom:0px; margin-left:25px; padding-top:0px; padding-right:0px; padding-bottom:10px; padding-left:0px;} li { padding-top:0px; padding-right:0px; padding-bottom:5px; padding-left:0px; margin-top:0px; margin-right:0px; margin-bottom:0px; margin-left:0px;}Product HighlightsSupports data rates up to 2.25 Gbps, enabling 1080p deep color (12-bit color) HDMI formats, and greater than UXGA (1600 × 1200) DVI resolutions.Input cable equalizer enables use of long cables at the input (more than 20 meters of 24 AWG cable at 2.25 Gbps).Auxiliary switch routes a DDC bus and two additional signals for a single-chip, HDMI 1.3 receive-compliant solution.ApplicationsMultiple input displaysProjectorsA/V receiversSet-top boxesAdvanced television (HDTV) setsData Sheet, Rev. 0, 1/07
