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  1. Q

    [SOLVED] ADE: Why there's no saved states?

    Of course, it is old. Please update it to Ic5141USR6
  2. Q

    Cadence Virtuoso cannot be launched without Internet connection

    Try to change the /etc/hosts file as below 127.0.0.1 localhost PCAOCN Without the internet, what is the IP address of your computer?
  3. Q

    Cadence Virtuoso cannot be launched without Internet connection

    1.You can try to set /etc/hosts as below 127.0.0.1 localhost.localdomain localhost 192.168.5.5 PCAOCN 2. change our license file SERVER PCAOCN ANY 27000 3. Set the PCAOCN to the IP address as 192.168.5.5 4. Set license export CDS_LIC_FILE=27000@PCAOCN export LM_LICENSE_FILE=$CDS_LIC_FILE...
  4. Q

    Cadence Virtuoso cannot be launched without Internet connection

    where is your license, and what is the license server name in license file? Can you ping the license server without internet? I think your problem may related with two reasons. license setting or IP setting.
  5. Q

    Cadence: Virtuoso Schematic Question help

    You can edit the symbol view, then add one or more cdsPara(). I can not start the schematic editor now, if you still have question, I will reply you on monday.
  6. Q

    Cadence Virtuoso cannot be launched without Internet connection

    1. Please check the setting of file /etc/hosts. You may not set the IP address of local domain. 2. Remove .cdsinit and .cdsenv and try again.
  7. Q

    Cadence: Virtuoso Schematic Question help

    When you create a symbol, you can add more 'cdsPara()' in the form. One cdspara() point to a paramter, then you can display more than 3. So you can try to modify the symbol. Good luck.
  8. Q

    Cadence virtuoso help

    You must in a university, then contact Cadence sale.
  9. Q

    Assura can not be started

    please remove the ".assura*" files present in your working directory
  10. Q

    how can i get the input capacitance of a pin

    You can use captab function in ADE, it can simlate the cap of node for DC.
  11. Q

    [SOLVED] ADE: Why there's no saved states?

    I think your loading directory is wrong. So ADE can not get the right files. What is the version of your icfb?
  12. Q

    The price of Verification tools?

    Does anyone know the price of Verification tools. Assura, Calibre and Hercules. The list price or the price after promotion. Thanks a lot!!
  13. Q

    Assura can not be started

    Please check you Assura version, and the rule deck requires version of Assura. After Assura 32, there are some change of function
  14. Q

    Cadence virtuoso help

    No, you can get the university version, it is nearly free
  15. Q

    Beginner in analog circuit design

    hambley electric circuit rapidshare I think this book is hard to beginner.
  16. Q

    How to generate a "process independent" current so

    use a resistor out of chip, it is process independent.
  17. Q

    how can i get the input capacitance of a pin

    I design a DAC as an analog IP in a SoC chip. The backend team need the capacitance of input pins to synthesis. I do not know how to get the input capacitance from my layout design. I use Cadence 5033 platform. Who can teach me how to get the capacitance, and how to make the lef or lib file for...
  18. Q

    The glitch of DAC when a thermometer code opens

    understanding glitch in a high speed dac There is a 10 Bit 200MHz current steering DAC, segmented 6+4 architecture. When a thermometer code open, there will be a big glitch. But it is not a real glitch, it is a distortion that the voltage lower than normal. When the binary code changing, the...
  19. Q

    The design of low speed high resolution DAC

    I have found more than two chips useing R-2R ladders architecture that can meet 14-16bit. There are AD5541 and AD5551 by Analog Devices. My design is just like these two chip.
  20. Q

    The design of low speed high resolution DAC

    low speed dac I have a project of 20kHz 12(or 14)Bit DAC. Do i need to use R-2R architecture to design it? And who can give me some advice or papers of this kind of DAC design. Thanks a lot!!

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