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LC7455A

Sanyo Semicon Device
Part Number LC7455A
Manufacturer Sanyo Semicon Device
Description Closed Caption Signal Extraction IC
Published Mar 22, 2005
Detailed Description Ordering number : EN5680 CMOS IC LC7455A, 7455M Closed Caption Signal Extraction IC Overview The LC7455A/M extracts t...
Datasheet PDF File LC7455A PDF File

LC7455A
LC7455A

Overview
Ordering number : EN5680 CMOS IC LC7455A, 7455M Closed Caption Signal Extraction IC Overview The LC7455A/M extracts the closed caption signal superimposed on a video signal during the vertical return period and, under the control of a clock signal provided by the decoder IC, transfers that signal to the IC (usually a microcontroller) that decodes the closed caption data.
The LC7455A/M supports four operating modes.
Modes 1 and 2 can be used for XDS.
In these modes, the LC7455A/M, in combination with the decoder IC (microcontroller), extracts the caption signal superimposed on field 2 and uses it for NTSC VCR functions such as the automatic time and date setting function.
In modes 3 and 4,...


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