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    Max internal ADC CLK in ARM Processors

    Hi every one,
    I'm designing a simple Oscilloscope. For Cost considerations, i prefer to use an ARM-Based micro-controller with an internal ADC. I need a single channel ADC with 48 MSPS sample frequency. Is there a proper ARM-Based micro-controller to satisfy this? In other word, is there an ARM-Based micro-controller that has an internal 48 MSPS ADC?
    Thanks

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    Re: Max internal ADC CLK in ARM Processors

    Try NXP LPC4370



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    Re: Max internal ADC CLK in ARM Processors

    Probably FSMC + external ADC?
    Love me or hate me. All infractions will be ignored.



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    Re: Max internal ADC CLK in ARM Processors

    LPC4370 is an ideal choice. But only one problem is packaging. We cant assemble BGA package.



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    Re: Max internal ADC CLK in ARM Processors

    Quote Originally Posted by matriX_1500 View Post
    LPC4370 is an ideal choice. But only one problem is packaging. We cant assemble BGA package.
    Oh well - great power requires overcoming great challenges !

    Try external adc then - like TI ADS548x series
    Last edited by kripacharya; 18th May 2019 at 16:41. Reason: Typo



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    Re: Max internal ADC CLK in ARM Processors

    i expect you can find someone who can assemble BGAs

    and you might try correct-a-chip

    https://www.arieselec.com/products/d...p-adapters.htm



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    Re: Max internal ADC CLK in ARM Processors

    Quote Originally Posted by wwfeldman View Post
    ... and you might try correct-a-chip

    https://www.arieselec.com/products/d...p-adapters.htm
    Yes, but this is BGA



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    Re: Max internal ADC CLK in ARM Processors

    Hello!
    Just for your info, there is an oscilloscope made with an STM32. I don't remember where I have found it,
    but I remember I downloaded the full source code. The name was oszi (for Oscilloscope in German).
    And it was really impressive. Now you have newer chips for example with the H series, and I suppose
    you can do something even better, faster, especially with the 2 core systems.
    Dora.



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    Re: Max internal ADC CLK in ARM Processors

    Hi,

    Soldering BGA.

    If you have a stencil a good solder paste and a thermometer then soldering should work on the plate of a kitchen oven.
    I did a couple of tests in similar way with 100% yield.
    I assume you will find a lot of videos in the internet how to do it.

    I recommend to include markings on the PCB (layout) to better adjust alignment.

    For sure I don't recommend this for "mass production".

    Klaus
    Please don´t contact me via PM, because there is no time to respond to them. No friend requests. Thank you.



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    Re: Max internal ADC CLK in ARM Processors

    Quote Originally Posted by doraemon View Post
    Hello!
    Just for your info, there is an oscilloscope made with an STM32. I don't remember where I have found it,
    but I remember I downloaded the full source code. The name was oszi (for Oscilloscope in German).
    And it was really impressive. Now you have newer chips for example with the H series, and I suppose
    you can do something even better, faster, especially with the 2 core systems.
    Dora.
    That probably had a max of 1 Msps rate, whereas OP is looking for > 48msps. Big difference.



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