LC7455A Datasheet, PDF (1/13 Pages) Sanyo Semicon Device – Closed Caption Signal Extraction IC

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, the
LC7455A/M, in combination with the decoder IC
(microcontroller), extracts the caption signal
superimposed on fields 1 and 2 and uses it for NTSC TV
applications (mode 3) or PAL TV applications (mode 4).
Functions
• Low power dissipation achieved by fabrication in a
CMOS process.
• Stable caption signal extraction achieved by a built-in
peak hold circuit and the use of digital technology.
• Operating supply voltage: 5 V ±10%
• Package LC7455A: 16-pin DIP
LC7455M: 18-pin MFP
Package Dimensions
unit: mm
3006B-DIP16
[LC7455A]
unit: mm
3095-MFP18
[LC7455M]
SANYO: DIP16
SANYO: MFP18
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters
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