http://dev.emcelettronica.com/taxonomy/term/1043 The taxonomy view with a depth of 0. en http://dev.emcelettronica.com/pcb/application_PI3HDMIxxx_4-layer_pcb_layout_guideline_for_hdmi_products <p><a href="http://www.pericom.com/pdf/applications/AN204.pdf" title="PI3HDMIxxx PCB Layout Guideline" target="_blank"><img src="/files/u4/AN204.jpg" alt="PI3HDMIxxx PCB Layout Guideline" align="left" hspace="5"/></a> The differential trace impedance of HDMI is specified at 100Ω±15% in Test ID 8-8 in HDMI Compliance Test Specification Rev.1.2a and 1.3a. Rev. 1.3a has a more relaxed specification which allows an occurrence of a single excursion out to a max/min of 100Ω±25% and of a duration less than 250ps. General PCB knowledge (PCB Prepreg Selection, Critical Signal Trace Length and Microstrip Stub Effect) and impedance control on 4-layer PCB of 1080+2116 Prepreg will be discussed in this layout guideline.<br /> </ br><br /> </ br><br /> </ br><br /> </ br><br /> </ br><br /> </ br><br /> </ br></p> <p><a href="http://dev.emcelettronica.com/pcb/application_PI3HDMIxxx_4-layer_pcb_layout_guideline_for_hdmi_products">read more</a></p> http://dev.emcelettronica.com/pcb/application_PI3HDMIxxx_4-layer_pcb_layout_guideline_for_hdmi_products#comments 4-Layer HDMI Layout Guideline PI3HDMIxxx Thu, 24 Jan 2008 14:43:46 +0100 Chris 51589 at http://dev.emcelettronica.com