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Application Notes

• Download
  Video Circuit Collection &mdash AN57
  PDF, 559 Kb, File published: Jan 2, 1994
  AN57, the Video Circuit Collection, features a variety of video circuits designed at LTC. The LT1204 70MHz multiplexer is featured in a number of circuits which require excellent video isolation from channel to channel. High speed voltage and current feedback amplifiers are highlighted throughout the section on video processing circuits. There is a section on applying Current Feedback Amplifiers (CFAs) and a number of articles taken from the Linear Technology magazine.
  Extract from the document

  Application Note 57
  January 1994
  Video Circuit Collection
  Jon Munson and Frank Cox
  INTRODUCTION
  Even in a time of rapidly advancing digital image processing, analog video signal processing still remains eminently
  viable. The video A/D converters need a supply of properly
  amplified, limited, DC restored, clamped, clipped, contoured, multiplexed, faded and filtered analog video before
  they can accomplish anything. After the digital magic is
  performed, there is usually more amplifying and п¬Ѓltering
  to do as an adjunct to the D/A conversion process, not to mention all those pesky cables to drive. The analog way
  is often the most expedient and efficient, and you don’t
  have to write all that code.
  The foregoing is only partly in jest. The experienced engineer
  will use whatever method will properly get the job done;
  analog, digital or magic (more realistically, a combination
  of all three). Presented here is a collection of analog video
  circuits that have proven themselves useful. CIRCUIT INDEX
  I. Video Amplifier Selection Guide . 2 II. Video Cable Drivers . 3
  AC-Coupled Video Drivers . 3
  DC-Coupled Video Drivers . 4
  Clamped AC-Input Video Cable Driver . 5
  Twisted-Pair Video Driver and Receiver . 5 III. Video Processing Circuits . 6 …

Articles

• Download
  250MHz RGB Video Multiplexer in Space-Saving Package Drives Cables, Switches Pixels at 100MHz &mdash LT Journal
  PDF, 275 Kb, File published: Nov 1, 1998
  Extract from the document

  DESIGN FEATURES 250MHz RGB Video Multiplexer in
  Space-Saving Package Drives
  Cables, Switches Pixels at 100MHz
  by John Wright and
  Frank Cox Dense Process Yields
  One of the first products from LTC’s Big Performance from
  new proprietary high speed bipolar Tiny PC Board Space
  Introduction process is a 250MHz RGB (red, green,
  blue) multiplexer that is optimized for
  switching speed and makes excellent
  use of the new complementary 6GHz
  transistors. This new MUX, the
  LT1675, is designed for pixel switching in video graphics and for RGB
  routing. It is configured with three
  SPDT (single pole, double throw) RGB
  video switches and three current feedback amplifiers for direct driving of
  cables.
  The new RGB MUX is similar to the
  LT1203/LT1205 video switches combined with the LT1260 triple CFA, but
  with greatly enhanced performance
  in far less space. The boost over the
  older configuration is a factor of five
  in switching speed and a factor of 2.5 …

Model Line

Manufacturer's Classification

• Signal Conditioning > Amplifiers > Operational Amplifiers (Op Amps) > High Speed Amplifiers (GBW > 50MHz) | Low Noise Amplifiers ( | Current Feedback Amplifiers | High Voltage Amplifiers (>12V)

Other Names:

LT1260ISPBF, LT1260IS PBF