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  1. Bipolar, Bidirectional DC-to-DC Supply Sources and Sinks Current from 5 V to 24 V Input
    Technical Articles
    Apr 1, 2020

    Victor Khasiev

    Most electronic systems depend on power voltage rails that are either positive or negative, but a few applications require individual rails that can be both.
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Results on EngineerZone

784,837
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    1. RXD pin is low when DE&RE is driven High

      Forum Thread
      Answered
      Interface and Isolation
      08 May, 2025
      pins DE and RE are connected together, when transmiting on tx and both pins are high the Rx falls to GND causing frame error at uart. is there a reason for this behavior? is it intended or a bug?
      hardwareadm2483Digital Isolation TechnologyADM2483BRWZIsolated RS-485rs485 transceivers

    2. School Project

      Forum Thread
      Answered
      LTspice
      08 May, 2025
      Design an op amp circuit to perform the following operation: vo = 3.5v1 - 2.5v2. All resistances must be <= 100k. The power supply should be +15V and -15V. Let v1 = 2V and v2 = 1V. I need help designing an op amp on LTSpice for a school project that counts as …
      Operational Amplifiers (Op Amps)simulationsoftware24.1.1LTspice

    3. how to receive undetermined length data through UART?

      Forum Thread
      Answered
      Precision Microcontrollers
      07 May, 2025
      I want to receive data with UART. The data could be 10 byte, 20 byte, 30 byte. COMRX is only 8 bit=1byte. When COMRX is full, it will generate an interrupt, then I'll read COMRX in the interrupt service routine software code. But how can I know the …
      softwaremicrocontrollersPrecision Microcontrollersaducm360

    4. ESD Protection

      Forum Thread
      Answered
      Interface and Isolation
      07 May, 2025
      In the block diagram below, I'm using an isolated RS422(ADM2390EBRWZ) transceiver. My system includes the diodes shown in the diagram, but there is no GDT between the two isolated grounds. During ESD testing with an ESD gun, the TVS diodes were ineffective, and my system suffered significant damage …
      adm2490ehardwareDigital Isolation TechnologyIsolated RS-485ADM2490EBRWZ

    5. Applying Hamming windowing to adc data before FFT block

      Forum Thread
      Answered
      FPGA Reference Designs
      07 May, 2025
      hi, i am trying to implement hamming windowing for adc data before fft block, i have generated .coe files using python hamming function and created BROM IP core and loaded the .coe file. please refer attached image. i am not getting correct data, how to verify this design and any …
      software2018.3

    6. HMC625BLP5E settling time and rise/fall time

      Forum Thread
      Answered
      RF and Microwave
      07 May, 2025
      Hi Folks, Currently we are evaluating HMC625BLP5E, but the data sheet doesn't show the parameter of setting time and rise/fall time. Could the parameter refer to HMC624A or here has any related information to be evaluated? Thanks.
      Datasheet/SpecsvgaDigital Step Attenuatorshmc625bDigital Control VGAshmc625blp5eattenuatorsVariable Gain Amplifiers (VGA)attenuator

    7. Lack of recognition of custom-made LIB CMP files with new software version # 24.1.6.

      Forum Thread
      Answered
      LTspice
      06 May, 2025
      The new version of LT Spice # 24.1.6 does not recognize my custom LIB CMP files but the older version # 24.0.11 does. For years I have generated custom SYM components stored within custom SYM files along with their associated custom component CMP files. Circuits analysis always worked …
      software24.1.6Not applicable

    8. Image Rejection

      Forum Thread
      Answered
      TES GUI & Software Support ADRV9001 – ADRV9007
      06 May, 2025
      Following Mr. Tomasz Kubasik's advice, I am posting a new issue regarding Image Rejection on our platform during Frequency Hopping. The original post was written by my colleague, Greg Tyma (19.01.2024, ez.analog.com/.../image-rejection).
      softwareADRV9002TES sdk version 0.27Wideband Transceiver ICRF Integrated Transceivers

    9. Layout guidelines

      Forum Thread
      Answered
      RF and Microwave
      06 May, 2025
      Hi, In HMC457 datasheet Tl1 and TL2 lengths are mentioned as 0.017 and 0.08 inches respectively. Both are 50ohm lines. For achieving this we can adjust track width. In what way this length depends on impedance? Is that the critical length that means above that length the track …
      Datasheet/Specshmc457power amplifiersrf amplifiers

    10. Main Secondary I2C read configuration

      Forum Thread
      Answered
      SigmaDSP Processors & SigmaStudio Dev. Tool
      05 May, 2025
      I am encountering an issue while trying to configure the mainsecondary I2C interface (MP24/SCL, MP25/SDA) on my ADAU1467 to read from an external I2C device. In my SigmaStudio project, I have an "I2C Continuous Read" block connected to a "DSP Readback" block. My goal is to continuously read …
      Audio Signal Processorssoftware4.7i2cadau1463SigmaDSP Audio Processors