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  1. DonMartin

    Headset interface design

    Hi, i want to design a device with a headset design. I'm not very familiar with analog/audio signal designs yet, so i'm looking for some guidance here. Does anybody know where i could find some sort of standard audio interface design for a headset interface? The chip manufacturers usually use a...
  2. DonMartin

    Opamp replacement: JRC 9003

    Ok guys, i had another look at the device and of course i was looking for the wrong code [3eyes]- it is a NJM2041 Type. With that code i easily could find the datasheet. Blinded by the obvious again [ponder]... thanks to all for setting me straight on this one.
  3. DonMartin

    Opamp replacement: JRC 9003

    I haven't been able to find a datasheet or even a pinout anywhere in the web. JRC hasn't responded so far either. It supposedly is a dual opamp with single supply. It is from a Marantz amplifier. Can aybody help?
  4. DonMartin

    HDLC-Frame-Generator wanted....

    I'm looking for a utility that can generate complete HDLC-Frames (out of ASCII / Hex / Bin data including bitstuffing? I have tools to generate CRC16 - no problem here. But maybe there is a nice tool that even can conveniently set Control- and Addressfield information as well...???? Any...
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