电线电缆网 > 通讯电缆 > SATA 线材的设计制造(完整版)
SATA 线材的设计制造 - 无图版
junioryan --- 2007-01-08 11:23:05
1
SATA 线材在制造时SKEW很难达到要求,10ps/M.请教有何办法?
ottolee --- 2007-01-08 11:40:15
2
這是一個複雜的問題。你知道為什麽達不到要求10PS/M嗎?
原因如下:
1.1P之兩銅綫導體綫徑、電阻不一致;
2.1P之兩FM-PE的發泡度、外徑不一樣,雖然靜電容量一致,但導致介質常數不一樣;
3.1P之兩芯綫直放包AL時,間距不穩定,或AL包的過松,或兩張力不一致。
知道了原因,你要如何控制呢?
ottolee --- 2007-01-08 11:55:53
3
請問,你的工廠在哪裏?
junioryan --- 2007-01-09 08:40:11
4
廠在杭州,為了剔除發泡的影響我用HDPE也試過,情況還是不理想。而且用TDR測skew時,跳動有點大。請教有什麼辦法。
junioryan --- 2007-01-09 11:03:44
5
ottolee:
請問你用什麼樣的包帶機來包帶,我們的包帶機比較老。
ottolee --- 2007-01-09 16:04:37
6
本公司專門開發的機器,臺灣朝隆有效仿:013616281958(龐小姐)!
HD-PE我們做0.254銅綫,很穩定呀!
junioryan --- 2007-01-09 16:36:00
7
你們測試的值是多少?TDR用的是什麼型號?
ottolee --- 2007-01-09 16:39:05
8
<10ps,用的HP的
junioryan --- 2007-01-09 17:33:18
9
能達到<3ps的要求嗎?我們用TEK的TDR測試波動很大。
hjj1983 --- 2007-01-10 08:25:07
10
把你的規格書發一份給我幫你看看,我的郵箱是zhuoyihang83@163.com
ottolee --- 2007-01-10 08:53:15
11
把你的規格書發一份給我幫你看看,我的郵箱是lwg@kscopartner.com
junioryan --- 2007-01-10 10:10:51
12
好的,晚上傳給你
junioryan --- 2007-01-15 11:33:10
13
<DIV class=O v:shape="_x0000_s1026"><DIV style="mso-char-wrap: 1; mso-kinsoku-overflow: 1">Conductor:30AWG solid SC</DIV><DIV style="mso-char-wrap: 1; mso-kinsoku-overflow: 1">Insulation:PE 0.82mm</DIV><DIV style="mso-char-wrap: 1; mso-kinsoku-overflow: 1">ELECTRICAL CHARACTERISTICS </DIV><DIV style="mso-char-wrap: 1; mso-kinsoku-overflow: 1">Differential Impedance: 100+/-5 Ohms@TDR </DIV><DIV style="mso-char-wrap: 1; mso-kinsoku-overflow: 1">Time Delay Skew (Within Pair): 20ps/6m maximum </DIV><DIV style="mso-char-wrap: 1; mso-kinsoku-overflow: 1">Attenuation: 10dB/6m Maximum@1.25GHz </DIV><DIV style="mso-char-wrap: 1; mso-kinsoku-overflow: 1">Near-End/Far-End Crosstalk2: 1% Maximum, Pulse </DIV><DIV style="mso-char-wrap: 1; mso-kinsoku-overflow: 1"> Method 100ps rise-time(20~80%) </DIV><DIV style="mso-char-wrap: 1; mso-kinsoku-overflow: 1; mso-line-spacing: '100 50 0'"></DIV></DIV>
junioryan --- 2007-01-15 11:34:47
14
各位,在下发邮件不方便要求如上所列.谢谢!
roger --- 2007-01-15 13:43:17
15
好乱啊
junioryan --- 2007-01-15 14:48:00
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<DIV class=O v:shape="_x0000_s1026"><DIV style="mso-char-wrap: 1; mso-kinsoku-overflow: 1">Conductor :30AWG</DIV><DIV style="mso-char-wrap: 1; mso-kinsoku-overflow: 1">Insulation:PE 0.82mm</DIV><DIV style="mso-char-wrap: 1; mso-kinsoku-overflow: 1">ELECTRICAL CHARACTERISTICS </DIV><DIV style="mso-char-wrap: 1; mso-kinsoku-overflow: 1">Differential Impedance: 100+/-5 Ohms@TDR </DIV><DIV style="mso-char-wrap: 1; mso-kinsoku-overflow: 1">Time Delay Skew (Within Pair): 20ps/6m maximum </DIV><DIV style="mso-char-wrap: 1; mso-kinsoku-overflow: 1">Attenuation: 10dB/6m Maximum@1.25GHz </DIV><DIV style="mso-char-wrap: 1; mso-kinsoku-overflow: 1">Near-End/Far-End Crosstalk2: 1% Maximum, Pulse </DIV><DIV style="mso-char-wrap: 1; mso-kinsoku-overflow: 1"> Method 100ps rise-time(20~80%) </DIV><DIV style="mso-char-wrap: 1; mso-kinsoku-overflow: 1; mso-line-spacing: '100 50 0'"></DIV></DIV>
ottolee --- 2007-01-15 15:26:50
17
有没有制造图面,这个太乱了!
junioryan --- 2007-01-15 15:46:51
18
conductor:30AWG SC
insulation:0.82 mm HDPE
electric characteristic:
impedance 100+/-5ohm
skew 20ps/6M
10dB/6M @1.25GHz
gyluky --- 2007-01-17 19:21:16
19
各位:
是SATA還是E-SATA,或是SAS.
好像說的不清楚.
michael --- 2007-01-20 08:56:53
20
加上附件我帮你分析一下!
lsr66 --- 2007-03-17 11:13:07
21
来学习
charlie919 --- 2007-03-19 18:58:04
22
skew 20ps/6M ?
为什么要这么严格啊,业界规范是20ps/pcs,一般应用不超过2m,所以线材控制在10ps/m Max.就OK了
li809113 --- 2009-03-30 20:15:04
23
看不懂