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LTC4300A-2 LTC4300A-2

Design Notes

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  Pass HDMI Compliance Tests with Ease &mdash DN394
  PDF, 73 Kb, File published: Jun 28, 2006
  Extract from the document

  advertisement Pass HDMI Compliance Tests with Ease – Design Note 394
  Bill Martin
  Introduction
  The high definition multimedia interface (HDMI) is fast
  becoming the de facto standard for passing digital
  audio and video data in home entertainment systems.
  This standard includes an I2C type bus called a display
  data channel (DDC) that is used to pass extended digital
  interface data (EDID) from the sink device (such as a
  digital TV) to the source device (such as a digital A/V
  receiver). EDID includes vital information on the digital
  data formats that the sink device can accept. The HDMI
  specification requires that devices have less than 50pF
  of input capacitance on their DDC bus lines, which can
  be very difficult to meet. The LTC® 4300A’s capacitance
  buffering feature allows devices to pass the HDMI DDC
  input capacitance compliance test with ease. capacitance of the channel is substantially higher. The
  HDMI cable connector must see the OUT side of the
  LTC4300A-1 for the input capacitance compliance testing
  to be accurate.
  In HDMI, the sink pulls the hot plug detect (HPD) signal
  high to tell the source that it is ready to accept commands
  through the DDC. This signal can be controlled by the …

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Manufacturer's Classification

• Interface > I2C and SMBus Bus Buffers and Accelerators

Other Names:

LTC4300A-1CMS8PBF, LTC4300A-1CMS8 PBF, LTC4300A1CMS8#PBF, LTC4300A 1CMS8#PBF