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利用HFA1103视频放大器从视频信号中除去同步脉冲
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2009-06-05
刘芳
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This application note will examine a variety of sync formats
and a method for removing the sync pulse from component
video signals (see Figure 1). The HFA1103 is a Video Op
Amp with an open emitter NPN transistor output stage that is
ideal for video signal amplification and sync stripping
functions. This product was developed for video design
engineers who need to remove sync from component RGB
(red, green, blue) and monochrome RS-170 video data (see
Figure 7). Recently the term RGB has been turned around
and called GBR (green, blue, red) as video distribution
systems normally put green on channel 1, blue on channel 2
and red on channel 3. This is consistent with the hook-up of
the color difference standards.
and a method for removing the sync pulse from component
video signals (see Figure 1). The HFA1103 is a Video Op
Amp with an open emitter NPN transistor output stage that is
ideal for video signal amplification and sync stripping
functions. This product was developed for video design
engineers who need to remove sync from component RGB
(red, green, blue) and monochrome RS-170 video data (see
Figure 7). Recently the term RGB has been turned around
and called GBR (green, blue, red) as video distribution
systems normally put green on channel 1, blue on channel 2
and red on channel 3. This is consistent with the hook-up of
the color difference standards.
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