1. T

    Advice on a project using microphone, speaker, HTTP APIs

    Hello, I'm looking for some advice on a project I'm doing and more specifically the best microcontroller to approach this. I've tried an approach already but reached a number of hurdles and need to return to square one. The project is a physical desktop intercom which takes only a power...
  2. T

    fundamental behavior of capacitor's plates and the charges in response to sudden changes in voltage?

    Hello everyone, I have been trying to understand fully the behaviour of the capacitor and over its two plates when exposed to sudden changes in voltage, and I divide my request for help into two questions: 1- How and why when we apply a sudden voltage over a capacitor C1_Plate_1, the C1_Plate2...
  3. mdafifmumtahin

    Help about electronic circuit (DAC with op amp)

    Can anyone please solve this problems ?
  4. M

    Transferring audio by I2S

    Hello! My plan is to create a circuit, which would effectively transfer 6 channels of analog 16-bit audio signal to the other side without loosing quality or inducing some kind of interference. Cable length would be around 5 meters. This circuit would be used in automotive to substitute 6 RCA...
  5. Younes Thabet

    How to interpret an audio jack schematic?

    Hello all, I have the attached datasheet for an audio D/A converter (CS43L22) which have stereo headphone out/line out. I couldn't understand fully the audio jack schematic in the typical connection diagram, specially the difference between the highlighted elements!? can someone explain the...
  6. A

    Where do these parasitic capacitances appear?

    So here: I assume each transistor has some sort of parasitic capacitance and that adds up into the non inverting terminal of the op amp? Why do those parasitic capacitances appear and how can i reduce them? And in this case: These capacitances appear because of Q4/Q3... ? They depend on...
  7. A

    Can you help me understand how Single supply output converters work

    This is from a text book: I dont understand any of it
  8. D

    Looking for Industrial Grade 24-bit Wireless Digital-to-Analog converters with analog outputs for a machine condition monitoring project

    Hi, I am looking for Industrial Grade Wireless Digital-to-Analog Converters (DACs). These DACs should be capable of receiving and accepting wireless digital transmission from industrial grade wireless vibration sensors, convert it into its corresponding analog/voltage signal, and send this...
  9. M

    Sampling Rate for DAC - Interpreting the Datasheet correctly?

    https://www.ti.com/lit/ds/symlink/dac121s101.pdf?ts=1613753173749&ref_url=https%253A%252F%252Fwww.ti.com%252Fproduct%252FDAC121S101%253Futm_source%253Dgoogle%2526utm_medium%253Dcpc%2526utm_campaign%253Dasc-null-null-GPN_EN-cpc-pf-google-wwe%2526utm_content%253DDAC121S101%2526ds_k%253DDAC121S101%2...
  10. __Pai__

    What is the need for buffer or amplifier for ADC?

    This may be novice question. I am understanding SAR ADC specification for modeling perspective. In the mean time I was following analog devices Driving SAR ADC. In general what the necessity for a driver when it matches T acq and T cov of the selected ADC datasheet? What else test situation or...
  11. A

    Using a unipolar DAC as a bipolar DAC

    Hello, I'm currently working on a project that requires the use of an MCP475 DAC. Currently, it is being powered from the 3.3V source from on a Raspberry Pi and hence works in the range of 0V to 3.3V. I need it to work in the range of -3.3V to +3.3V. By reading the spec sheets I found that I...
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