HDMI and video switches evaluation board
Features
■ 16-character x 2-line alphanumeric backlit LCD
■ VGA input and output connectors
■ S-video input and output connectors
■ Y Pb, Pr input connector set
■ Y Pb, Pr output connector set
■ CVBS input and output connectors
■ 2 HDMI input and output connector sets
■ DVI I connector
■ Reset switch
■ Power supply jack (9 V, 500 mA)
Description
This evaluation board demonstrates the
functionalities of the STMAV335 and STMAV340
analog video switches and the STHDMI002A and
STDVE003A digital video switches, respectively.
STEVAL-CCH002V1
Data Brief
The purpose is to demonstrate the capabilities of
ST's video switches and buffers (also making an
appropriate use of the signal line protection
devices in all I/O Lines) for both standard analog
or high speed TMDS (Transition Minimized
Differential Signaling) digital signals.
Demonstration of the various devices is achieved
by setting the appropriate jumpers on the
evaluation board. All necessary I/O interface
connectors applicable for each signal format are
provided. Standard interconnects available on the
market can be used with the evaluation board.
There is also a 2-line backlit LCD with16
characters-per-line, which displays the selection
status as well as the control signals sensed by the
preprogrammed microcontroller.
This evaluation board can be powered by the 9 V
adapter provided or by a standard 9 V power
supply with a current capacity of at least 500 mA.
The source does not need to be regulated. On-
STEVAL-CCH002V1
board regulators supply +5 V and +3.3 V as
required.
April 2008 Rev 1 1/5
For further information contact your local STMicroelectronics sales office.
www.st.com
5
Evaluation board illustrations STEVAL-CCH002V1
1 Evaluation board illustrations
Figure 1. Analog section
Figure 2. Digital section
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STEVAL-CCH002V1 Evaluation board schematic
2 Evaluation board schematic
Figure 3. Schematic 1/2
Figure 4. Schematic 2/2
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Revision history STEVAL-CCH002V1
3 Revision history
Table 1. Document revision history
Date Revision Changes
15-Apr-2008 1 Initial release.
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STEVAL-CCH002V1
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