一.4层板PCB排版结构L1（TOPLAYER）1.9mil2116+10807.3mil(介电常数:4.3)L2（GND）1.2milCore61milL3（VCC）1.2mil2116+10807.3mil(介电常数:4.3)L4（BOTTOMLAYER）1.9mil说明：L1、L4为信号层，L2、L3为电源层；总厚度：79.5*0.0254＝2.0mm差分线宽6mil，5mil间距，阻抗值100欧姆；差分线宽5mil，4mil间距，阻抗值100欧姆差分线宽7mil，6.5mil间距，阻抗值100欧姆二．六层板叠层顺序TOP-------------------------------1.9mil21164.5milGND-------------------------------1.2milCore8.27milS1---------------------------------1.2mil7628*2+211616.9milVCC--------------------------------1.2milCore37.4milVDD--------------------------------1.2mil21164.5milBOT----------------------------------1.9mil总厚度：78*0.0254＝2.0mm外层线路：单端线6mil54Ω;单端线4mil65Ω;差分线6mil线宽16mil间距100Ω。第三层：单端线6.0mil56Ω;单端线4mil68Ω差分线6mil线宽10mil间距100Ω。③.八层板叠层顺序TOP-------------------------------1.9mil1080*27.3milGND-------------------------------1.2milCore20.08milS1---------------------------------1.2mil7628*2+211616.9milVCC--------------------------------1.2milCore20.08milVDD--------------------------------1.2mil7628*2+211616.9milS2----------------------------------1.2milCore20.08milGND---------------------------------1.2mil1080*27.3milBOT----------------------------------1.9mil总厚度：117*0.0254＝3.0mm外层线路：单端线12mil50Ω;单端线6.5mil68Ω;单端线5mil75Ω差分线4mil线宽19mil间距150Ω。差分线7mil线宽7mil间距100Ω第三六层：单端线14mil50Ω;单端线6.5mil68Ω单端线5mil75Ω差分线4mil线宽26mil间距150Ω差分线5mil线宽6mil间距100Ω。四.十层板叠层顺序TOPlayer1---------------------------------1.93313----------3.9milGNDlayer2---------------------------------0.6thincore--------5.12milSIGlayer3---------------------------------0.62116*2----------8milGNDlayer4---------------------------------0.6thincore--------5.12milSIGlayer5---------------------------------0.67628*2---------13.2milSIGlayer6---------------------------------0.6thincore--------5.12milVCC1layer7---------------------------------0.62116*2-------8milSIG4layer8---------------------------------0.6thincore--------5.12milVCC2layer9---------------------------------0.63313----------3.9milBOTlayer10--------------------------------1.9总厚度：63.7*0.0254=1.6mm外层单线6mil50Ohm第五六层单线6mil50Ohm第三八层单线5mil50Ohm五.十二层板叠层顺序TOPlayer1---------------------------------1.92116----------4.5milPLNlayer2---------------------------------1.2thincore--------5.12milPLNlayer3---------------------------------1.27628-------6.5milSIGlayer4---------------------------------1.2thincore--------5.12milPLNlayer5---------------------------------1.21080*2-------4.8milSIGlayer6---------------------------------1.2thincore--------5.12MILSIGlayer7---------------------------------1.21080*2-------4.8milPLNlayer8---------------------------------1.2thincore--------5.12milSIGlayer9---------------------------------1.27628-------6.5milPLNlayer10--------------------------------1.2thincore--------5.12milPLNlayer11---------------------------------1.22*1080----------4.5milBOTLAYER12---------------------------------1.9总厚度：70.6*0.0254=1.79mm外层单线6mil53.7ohm内层单线L4、L9层4mil51ohm单线L6、L7层4mil54.12ohm六.十四层板叠层顺序TOP---------------------------------------1.9mil121164.5milPLN----------------------------------------0.6mil2Core5.12milPLN---------------------------------------...
