4:1 HDMI/DVI Switch with Equalization
4 inputs, 1 output HDMI/DVI link
Enables HDMI 1.3-compliant receiver
Pin-to-pin compatible with the AD8191A
4 TMDS channels per link
Supports 250 Mbps to 2.25 Gbps data rates
Supports 25 MHz to 225 MHz pixel clocks
www.DataSheet4U.cEoqmualized inputs for operation with long HDMI cables
(20 meters at 2.25 Gbps)
Fully buffered unidirectional inputs/outputs
Globally switchable, 50 Ω on-chip terminations
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
2 AD8197A devices 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
Multiple input displays
Advanced television (HDTV) sets
The AD8197A 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 AD8197A is provided in a 100-lead LQFP, Pb-free, surface-
mount package, specified to operate over the −40°C to +85°C
FUNCTIONAL BLOCK DIAGRAM
HIGH SPEED BUFFERED
LOW SPEED UNBUFFERED
Figure 2. Typical HDTV Application
1. Supports data rates up to 2.25 Gbps, enabling 1080p deep
color (12-bit color) HDMI formats, and greater than
UXGA (1600 × 1200) DVI resolutions.
2. Input cable equalizer enables use of long cables at the input
(more than 20 meters of 24 AWG cable at 2.25 Gbps).
3. Auxiliary switch routes a DDC bus and two additional signals
for a single-chip, HDMI 1.3 receive-compliant solution.
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rights of third parties that may result from its use. Specifications subject to change without notice. No
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