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Type: Posts; User: clros

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  1. Replies
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    [SOLVED]Closed: CD4053 connect unused pins

    Hi,
    in a cd4053 I do not used some pins (input and output).

    How should I connect them?
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    755

    Closed: Re: Two ps/2 ports and a FPGA

    Can you tell me some circuit to do it?
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    Closed: Two ps/2 ports and a FPGA

    Hi,

    I would use 2 ps/2 (mini din 6 pin) ports with only one FPGA.

    The signal "clock" can be the same for the two ps/2 ports? Can I drive the pins 5 of ps/2 connector with only one FPGA pin?
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    [SOLVED]Closed: DC-DC converter to -3.3v

    Hi,

    I need a DC-DC converter with a positive voltage input (+5V) and a negative voltage output (-3.3v) with a current minimum of 2A.

    Can suggest me a circuit or a low cost Converter on a...
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    Closed: Re: Switching power supply

    I would like to use directly the voltage (220V / 110V) if possible




    I should try it. Where can I find it?
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    Closed: Switching power supply

    I would like to design a switching power supply that provides different voltages for a circuit I designed.
    I need a double voltage (+/- 3v) and two other voltages (+ 5v, +12v).

    I have no...
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    Closed: PCB Service in Europe/USA

    Hi everyone,
    to make the PCBs of my projects, I always turned to China and I always had low prices and great quality, I could also have SMD components mounted.
    Usually it was always a 4-layer PCB,...
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    Closed: TLV4172 low-cost substitute

    Hi,

    for my project I am using a TLV4172/OPA4172 OpAmp.

    I'm using this OpAmp because it's rail to rail and it's dual power. These are features that I need.
    But it's very expensive. Are you...
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    [SOLVED]Closed: Re: "Power" operator with LUT exponent

    I had not thought about the fact that it also depended on the type of arguments.

    In my example I included:


    library ieee;
    use ieee.std_logic_1164.all;
    use ieee.numeric_std.all;

    If I use...
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    [SOLVED]Closed: "Power" operator with LUT exponent

    Hi to all,
    I have a problem with Quartus II (Altera),that depends on my poor knowledge of vhdl.
    This code:

    […]
    type lut_array_type is array(3 downto 0) of std_logic_vector(5 downto 0);
    signal...
  11. Replies
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    Closed: Re: IC design and MOSIS C5 technology for newbie

    Ok, but is there a way to make layouts that are technology independent?
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    1,349

    Closed: Re: IC design and MOSIS C5 technology for newbie

    My problem is to create a layout (MOSFET / CMOS) that contains all the parameters to be implemented on silicon.
    One of these parameters is definitely the threshold voltage.

    I do not know how to...
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    Closed: Re: IC design and MOSIS C5 technology for newbie

    Ok, Thanks. I return now on same question.

    I now use Magic and I realized simple mosfet layout.
    For change the Vth, can I do it directly from Magic?

    Or do I have to export the layout and set...
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    718

    Closed: Re: Spice model to VLSI

    My circuit needs two types of mosfet, with 2 different VThs. The mosfet would still work in saturation or interdiction (never in the linear area).

    Can I consider this as a digital circuit (always...
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    Closed: Spice model to VLSI

    Is it possible to create a VLSI diagram (an IC layout) from a spice model? Is there any software that does this?
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    1,349

    Closed: Re: IC design and MOSIS C5 technology for newbie

    Ok, at this point I have another question:
    Is it possible, however, to create some MOSFETs with the simulation programs that have the desired characteristics (Vth) and simulate the functioning (even...
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    Closed: IC design and MOSIS C5 technology for newbie

    Hello
    I am passionate about electronics and for a hobby project I would like to design (and then realize) an IC.

    I have no background in the implementation of IC and VLSI design, just some...
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