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

16

 <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
-- 结束 --