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Recent content by binlch.lv

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    schematic and PCB layout design sevices----------- low cost high efficiency

    We are a professional design house engaged in schematic and pcb layout , with a number of years of hardware engineers who have wealth of high-speed multilayer circuit board PCB design experience. We services Enterprise PCB outsourcing, individual developers, students with PCB layout ,SI...
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    20pin to 14 pin adapter with 2mm pitch

    i think you can use this ,it can change any jtag connector .
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    Cheap BGA/QFN soldering service?

    in china it will be cheap, but it will take some time.
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    [moved] capacitors shorting in our 4 layer pcb

    do your cap is neer board edge or is Very heavy forced .
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    Can you find these footprints?

    if you once create the footprint,you will find that creating footprint is very simple. there are a lot of tutorial on the web ,so i suggest that you have better do it by youself,
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    Impedance/Length Matching Tracks in PCB Layout

    SunnySkyguy's answer is good. I simplified the question. 1. length matching .make sure your setup and hold time margin greater than pcb delay,pcb delay 1ns/6inch. 2.impedance matching .make sure your pcb line impedance and load is the same value.pcb line setup you can use si9000.
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    4 different frequency signals in a single channel

    microcontroller only can creat digital signal,I don't think you can creat.
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    Want to find LCD component in Altium Designer

    the sch lib and pcb lib's pin numbers must be the same as your lcd,so you have better do the lib youself.it i is easy.
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    How to make my own BGA socket ?

    the ebay link is our ebay shop link .the administrator has removed. we provide pcb layout and manafature in china shenzhen, we often corporate with BGA socket manafacture in shenzhen . f you need detail imformation ,send your bga datasheet ...via Edaboard personal message. [email address...
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    PCB Board Manufacture/ PCB sample Production

    The fast 3 days,the lowest 30$. We provide PCB sample Production service, convenient customers production high quality and fast PCB Board after layout . 1.Prototype Lead Time: 2 layers PCB: 3-4 days 4 layers PCB: 6-7 days . Mutilayers pcb: contact us. 2. PCB Files and price 10CM*10CM 2...
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    crosstalk in commercial boards

    it depends on interface voltage standard.don't make the interface voltage vialate the standard when you calculate .
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    How to make my own BGA socket ?

    there are 2 ways: 1. if your bga is special ,you can make a pcb that change the bga to another connector.but the bga is past to the pcb 2.if your bga is common,you can buy a socket from eletronic marcket
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    how to get edited orcad symbol to update in schematic

    there are two way: 1.delete the componet 2.cleanup cache 3.replace the componet or if you don't want replace location of the componet, 1.edit the library 2.select the componet in library cache,right click,replace.
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    QFN24 PCB symbol for allegro

    when you creat footprint there has and option for creat psm,turn it on
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    footprint problem in Allegro PCB sofware

    you must first set the board outline,and note when you creat the footprint don't set the

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