AD8191A

PRODUCTION

4:1 HDMI/DVI Switch with Equalization

Data Sheet (Rev. 0) Product Selection Table

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Overview

4 inputs, one output HDMI/DVI link
Pin-to-pin compatible with the AD8197A
4 TMDS channels per link
Supports 250 Mbps to 1.65 Gbps data rates
Supports 25 MHz to 165 MHz pixel clocks
Equalized inputs for operation with long HDMI cables (20 meters at 1080p)
Fully buffered unidirectional inputs/outputs
Globally switchable, 50 Ω on-chip terminations
Pre-emphasized outputs
Low added jitter
Single-supply operation (3.3 V)
4 auxiliary channels per link
Bidirectional unbuffered inputs/outputs
Flexible supply operation (3.3 V to 5 V)
HDCP standard compatible
Allows switching of DDC bus and 2 additional signals

Output disable feature
Reduced power dissipation
Removable output termination
Allows building of larger arrays
Two AD8191As support HDMI/DVI dual link
Standards compatible: HDMI receiver, DVI, HDCP
Serial (I²C slave) and parallel control interface
100-lead, 14 mm × 14 mm LQFP, Pb-free package

The AD8191A 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.

The AD8191A is provided in a 100-lead LQFP, Pb-free, surface-mount package specified to operate over the −40°C to +85°C temperature range.

Product Highlights

Supports data rates up to 1.65 Gbps, enabling 1080p HDMI formats and 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 1080p).
Auxiliary switch routes a DDC bus and two additional signals for a single-chip, HDMI 1.2a receive-compliant solution.

Applications