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Recent content by ChineseDragon

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    MATLAB code for OFDM required [urgent]

    ofdm code I think there is a OFDM simulation package from Taiwan, you can search it on the web.
  2. C

    Problems with Wintech USB XDS560 emulator

    wintech xds560 Wintech emulators are rubbish, do not use them! I think Spectrum Digital's products are better.
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    Intelligent battery charger circuit

    sla battery charger circuit Go to TI and Maxim website.
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    need help - camera interface

    It will be a little bit hard. You know, most camera vendors do not want to open their programme interface for publics.
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    How to receive a DTMF tone from mobile phone?

    dtmf to binary converter Just pick up the sound from the earphone output, and send it to the DTMF receiver(MT8888 and so on), then you can decode the DTMF signals.
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    How to tap I2C signal between 2 IC's

    Yeah, you can get what you want from the internet, especially from the Mricochip's webshite.
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    Power supply for Wavecom Q2403 module

    q2403 I'm desgining a hand-hold set with Q2403 module.It is powered by 1 Li-Ion battery,how to design the switch power supply for the Q2403 module? The Q2403 module requires instant 2A peak current supply every 4 seconds. I designed a switch power between the battery and the module, but it is...
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    Has anyone got the schematic of @ltera ByteBlasterII Cable?

    byteblasterii Please share it with me,I need it! Thanks
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    Does Anyone get the Cirrus VHR/DVD Player Refrence Design CD

    I need the following documents: 1.Schematics 2.Control FPGA design 3.Firmware 4.Gerber Files I need your help,thanks very much!
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    Comments on my PowerPCB design is welcome!!!

    My design contains a BGA package which has 836 pins(6 rounds),please give me some advice on: 1) minimum layers requied; 2) design rules; Any commnets are very welcomed!!!
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    Please help me with PowerPCB4.0

    1)How to perform the group routing,because my PCB work contains so many buses,I want to route these buses as same length as possible. 2)My PCB contains many differential lines,how to route these differential lines in the same length? I kown that there is a setting in PowerPCB to set the...
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    Problems with designing 8-layer board in PowerPCB4.0

    Thanks to HytekPro. Another question: 1)How to perform the group routing,because my PCB work contains so many buses,I want to route these buses as same length as possible. 2)My PCB contains many differential lines,how to route these differential lines in the same length? I kown that there is a...
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    Problems with designing 8-layer board in PowerPCB4.0

    PowerPCB4.0 Problem Hi,freinds here, I met with a problem when using PowerPCB4.0,that is: I am designing a 8-layer board,when using the autoroute function,it dosn't route in the inner signal layers,what's wrong with it? My PCB layer stack-up is: 1.Top Layer...
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    How to route BGA package in PowerPCB?

    Thanks to ramesh and wilson! Another question to ramesh: Is the river-routing function in PowerPCB?How to implement it?Thanks!
  15. C

    How to route BGA package in PowerPCB?

    I will design a high-density board that uses many BGA package,could someone kindly tell me how to implement the autoroute to route the BGA package? Thanks!!!
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