Catalog
2:1 HDMI/DVI Switch with Equalization and DDC/CEC Buffers
Key Features
• Four TMDS channels per link:Supports 250 Mbps - 2.25 Gbps data rates and beyondSupports 25 MHz - 225 MHz pixel clocks and beyondFully buffered unidirectional inputs/outputsGlobally-switchable 50 Ω on-chip terminations
• Three auxiliary channels per link:Buffered and switched DDC bus (SDA and SCL)DDC bus logic level translation (3.3 V, 5 V)Buffered CEC bus with integrated pull-up resistors (27 kΩ)Hot plug detect pulse low on channel switch
• 2 inputs, 1 output HDMI/DVI links
• HDMI 1.3 receive & transmit compliant
• Equalized inputs and pre-emphasized outputsFully flexible input/output mappingInput terminations disabled for unselected inputs
• Input/output capacitance isolation
• Output disable feature:Reduced power dissipationOutput termination removal on TMDS channels
• Single-supply operation (3.3 V)
• Standards compatible: DVI, HDMI 1.3, HDCP, CEC
• Serial (I2C slave) control interface
• 56-pin 8 mm × 8 mm LFCSP Pb-free package
Description
AI
The AD8192 is a complete HDMI™/DVI link switch featuring equalized TMDS inputs and pre-emphasized TMDS outputs ideal for systems with long cable runs. The TMDS outputs can be set to a high impedance state to reduce the power dissipation and/or allow the construction of larger arrays using the wire-OR technique. The AD8192 includes bidirectional buffering for the DDC bus and CEC line, with integrated pull-up resistors for the CEC line. The AD8192 is available in a space-saving, 56-lead LFCSP surface-mount, lead-free plastic package specified to operate over the −40°C to +85°C temperature range.PRODUCT HIGHLIGHTSFully HDMI 1.3a transmit and receive compliant.Supports data rates up to 2.25 Gbps, enabling greater than 1080p HDMI formats with deep color (12-bit) and UXGA (1600 × 1200) DVI resolutions.Input cable equalizer enables use of long cables; more than 20 m (24 AWG) at data rates up to 2.25 Gbps.Auxiliary switch isolates and buffers the DDC bus and the CEC line, improving total system capacitance limit.Hot plug detect (HPD) signal is pulsed low on link switch.Manually or automatically switched input terminations.APPLICATIONSFront panel buffer for advanced television (HDTV) setsStandalone HDMI switcherMultiple input displaysProjectorsA/V receiversSet-top boxes
