ST公司的STEVAL-CCH002V2是HDMI" title="HDMI">HDMI和視頻開關(guān)演示板,支持STHDMI002A, STDVE103A, STDVE001A, STMAV340和STHDMI002A數(shù)字開關(guān)/均衡器,以及STMAV335和TMAV340模擬開關(guān),包括有16字符x2線數(shù)字背光LCD,VGA輸入和輸出連接器,S視頻輸入和輸出連接器, Y Pb Pr輸入和輸出連接器以及CVBS輸入和輸出連接器.本文介紹了演示板主要特性和詳細(xì)的電路圖.

STEVAL-CCH002V2: HDMI and video switches demonstration board This user manual explains the functions and operation of a demonstration board which supports STHDMI002A, STDVE103A, STDVE001A, STMAV340, and STHDMI002A digital switches/equalizers, and STMAV335 and STMAV340 analog switches, and also different analog buffers and protection devices for analog and digital lines.

The objective of this demonstration board is to display the capabilities of ST’s video switches and buffers and also the appropriate use of signal line protection devices, which have been exhaustively used in this demonstration board at all I/O lines, analog video lines, and high speed transition minimized differential signaling (TMDS) digital signals. The board consists of different input/output connectors and supports various signal formats - VGA (RGB), Y Pb Pr (component video), DVI-I Analog, CVBS (composite video), and S-video in the analog domain and HDMI, DVI-I digital in the digital domain. Demonstration of the various devices is done through appropriate jumper settings on the demonstration board. A 16 character x 2 line backlit alphanumeric LCD, driven by a pre-programmed microcontroller, is also present, which senses the selection lines and displays the active device/signals, switched on, on the LCD.


圖1.STEVAL-CCH002V2外形圖

STEVAL-CCH002V2主要特性:

■ 16-character x 2-line alphanumeric backlit LCD

■ VGA input and output connectors

■ S-video input and output connectors

■ Y Pb Pr input and output connector sets

■ CVBS input and output connectors

■ DVI-I input connector

■ Analog and digital switch selection jumper sets

■ Power supply section

■ Reset switch

■ RoHS compliant

圖2.STEVAL-CCH002V2電路圖(1)

圖3.STEVAL-CCH002V2電路圖(2)

圖4.STEVAL-CCH002V2電路圖(3)

圖5.STEVAL-CCH002V2電路圖(4)

圖6.STEVAL-CCH002V2電路圖(5)

圖7.STEVAL-CCH002V2電路圖(6)
詳情請見:
http://www.st.com/internet/com/TECHNICAL_RESOURCES/TECHNICAL_LITERATURE/USER_MANUAL/CD00265447.pdf