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  • TMS320F28075: ADC sampling result has 2nd harmonic while ADC analog input hasn't

    TI Thinks Resolved
    Part Number: TMS320F28075 Other Parts Discussed in Thread: C2000WARE Hi My customer use TMS320F28075 ADC to sample three-phase electric power. As you see, the green wave is voltage input to ADC. Fundamental is 50Hz, almost hasn't 100Hz harmonic. …

  • RE: With a 2-bits, 500Msps ADC, I found that the amplitude of the second harmonic is bigger than the amplitude of the fundamental by analysizing the FFT result of samping data. Why?

    u4, What is the ADC you are using? TI does not have any 2-bit ADCs, the fewest number of bits at 500Mbps is 7-bits. You can use the ADC harmonic calculator to determine the Harmonic content: www.ti.com/tool/ADC-HARMONIC-CALC . ~Leonard
    • Answered

  • ADS4128: Looking for a 10MHz very low harmonic sine source to check AFE +ADC performance

    Resolved
    Part Number: ADS4128 Other Parts Discussed in Thread: THS4541 , THS4509 , TSW2170EVM , TSW2110EVM Hello, I have an application with an ADS4128 driven by an AFE using THS4541 and THS4509 op amps. I want to be able to reproduce the setup used in figure…
    • Resolved

  • CC2530 ADC calc

    Other Parts Discussed in Thread: CC2530 , Z-STACK , CC2538 , CC2538-SW HI, Please help me i am using CC2530 ADC but not getting correct values after conversion. Please find attached files used in program and results found. 0257.ADC calc.xls …

  • What happened to adc-input-calc ?

    Hello Team, the tool under http://www.ti.com/tool/adc-input-calc doesn't start. I tried Internet Explorer, Firefox and Chrome. The web page is active, but as soon as you click the link you will be forwarded to the e2e forum. Initiate ADC-INPUT-CALC…
    • Answered

  • Re: ADC-INPUT-CALC Tool

    Resolved
    Dale, Actually, these formulas were reviewed several times by many people. I beleive they are correct in the presentation that you have posted. Bonnie

  • ADC - TLV320ADC3101 If input is of >5Khz i am getting output as the mixed frequency (harmonics)

    Other Parts Discussed in Thread: TLV320ADC3101 , CCSTUDIO Setup: In the audio system, the analog signal conditioning section consists of a Pre-amplifier section and Anti – aliasing filter. This is followed by Dynamic Range Compressor (DRC)/Limiter and…

  • AWR2944: Inquiry on Harmonic and Low Amplitude Issue Observed with AWR2944

    Part Number: AWR2944 Tool/software: Hi expert, We are currently investigating an unexplained phenomenon related to harmonic generation and unexpectedly low ADC amplitudes when using the AWR2944 with our designed antenna compared with the AWR2944 EVM…
    • Answered

  • RE: ADC34RF72: Request for schematic review – Low analog performance on ADC34RF72

    Resolved
    HI Seungbeom, The lower performance is due to the amplifier driving the analog input. Amplifiers have noise, this noise will be gained up by the amp and will be reflected into the ADC's performance. Same goes with the clock. The LMK device you are…
    • Answered

  • RE: LMX2594: HD components in the LMX2594 output clocks

    Resolved
    Hi Raghavendra, both even and odd harmonics exist but odd harmonics are usually higher than even harmonics. Your output power setting is 7, could you make it to 30? I don't know the harmonics required from ADC, you'd better check with the ADC team…

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