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Recent content by yayawoo

  1. Y

    Opinions on crossprobing feature in CAM350 V8.6

    cam350 v8 V8.6 is out for evaluation and download. Unfortunately the crossprobing feature is unavailable with eval version. You need a license file from a sales rep in order to enable that feature. Whoever out there have try crossprobing, please provide some feedback. Thank you in advance...
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    Looking for documents for USB 2.0 & ADSL Modem implemena

    Re: USB 2.0 and ADSL Modem What's the point of getting USB2.0 on an ADSL when the highest download rate is only 8Mbps. USB1.1 can handle it with some spare. All ADSL chipset these days have both Ethernet and USB1.1 already. Why wasting time. Cheers.
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    Which company ahs the best performance and cost on ADSL chip

    ADSL chipset Hi all, I am new to ADSL modem design. Which company offers the best performance and cost on ADSL chipset? I know there are Globespan, Broadcom, and STMicroelectronics. Any idea what their prices are? Any help is very much appreciated. Thank you in advance.
  4. Y

    PADSPCB and multiple boards on same panel

    I totally agree. Using CAM350 is the only safe, straight forward, less chance to make error way to merge multiple pcb files into one Gerber. I did that all the time and just put break-aways between boards. They all turned out great.
  5. Y

    I need ByteBlaster II download cable schema

    Try these: **broken link removed** **broken link removed** Hope they help.
  6. Y

    usb to rj45 interface - information and schematics needed

    **broken link removed** specalize in USB chip. They also have some solutions. Another one is https://www.asix.com.tw. Worth a look. Enjoy.
  7. Y

    AT&T/Lucent Telecom IC

    Really really appreciate your help. I think the board is still mostly deployed in Asian developing countries. Other places have already upgraded to more advanced system. If you can provide those information in Chinese, I should be able to read them. Thanks in advance.
  8. Y

    AT&T/Lucent Telecom IC

    Very disappointing. Would there be information of the ISLU2 card itself? Things regarding the control signals in and out of the card would be helpful. Many thanks in advance.
  9. Y

    AT&T/Lucent Telecom IC

    Yes, I checked with Agere before, but they replied saying they sold some of their product lines to Legerity. God knows who gets what now. :(
  10. Y

    AT&T/Lucent Telecom IC

    Thanks Jourval. Even thought the matter is urgent, I look forward to your good news.
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    AT&T/Lucent Telecom IC

    I am assigned to repair the ISLU2 line interface card for the AT&T/Lucent 5ESS. There are two chips on the board where I can't find the data sheet anywhere on the web. If there is anyone out there who have any info on these two chips, please help. These two chips are ATT1028CS Sixteen Line...
  12. Y

    Any tip for layout board with BGA?

    You can also check out Motorola. They have a pretty good app note on BGA fanout and some routing technique.
  13. Y

    how to produce many DC values from a single source?

    Get three regulators with ADJ (i.e. adjustable) output, e.g. LM1117-ADJ. Or use 12V as your main source, then regulate 8V from 12V and 5V from 8V. There are lots of ways and combination to do that, depends on your current requirement.
  14. Y

    How difficult to design an Ethernet Swithc ASIC?

    ethernet asic design Bad choice. Too big and too complicated for a student. Knowing ASIC design methodologies and tools are great, but doesn't help you much on actually designing an ASIC. Although Ethernet switch is a well known technology, it doesn't mean it's easy to design. As a student...
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    Information about standalone ethernet controller

    For Ethernet PHY devices, try **broken link removed**. There are a lot of schematics, device drivers, etc there. For controller with build-in Ethernet interface, try http://rabbitsemiconductor.com. Good luck.
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