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Analog Circuit Design Volume Three by John Hamburger, Bob Dobkin

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Chapter 320

Pass HDMI compliance tests with ease

Bill Martin

Abstract

The LTC4300A-1, a 2-wire bus buffer with a capacitance buffering feature that allows devices to pass the HDMI DDC input capacitance compliance test with ease, is described.

Keywords

HDMI

display data channel

LTC4300A-1

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 ...

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