Search tips
Showing 75 results View by: Thread Post Sort by
    Answered

  • PCM1840: PCM1840 MCLK slave mode

    Resolved
    Part Number: PCM1840 Hello! Two questions regarding the PCM1840 ADC. When in slave mode, is MCLK input not needed? Is it derived from the BCLK or how does it work? (For reference in my scenario MSZ is LOW, FMT0 and FMT1 are HIGH, DM0 and DM1 are…
    • Resolved

  • PCM1840: Timing Diagram question

    TI Thinks Resolved
    Part Number: PCM1840 Hi Experts, I need help following the timing diagram shown in the datasheet for the PCM1840 when using it in 4-channel TDM slave mode (Figure 14 in the datasheet). The datasheet shows bit N-1 becomes present on SDOUT simultaneously…
    • Answered

  • PCM1840: Full-scale voltage error range

    Resolved
    Part Number: PCM1840 Hi team, Regarding the tolerance for the differential full-scale input (2 VRMS), the datasheet specifies 2 VRMS as the ADC's differential full-scale input value, but it appears that the nominal tolerance for this value is not documented…
    • Resolved
    • Answered

  • PCM1840: About Gain Error

    Resolved
    Part Number: PCM1840 Tool/software: Hi team, What is the gain error for this device? Please let me know, even if it is not a guaranteed value. I am concerned because there was a slight difference in output when using several of these devices side by…
    • Resolved

  • PCM1840: Schematic review

    Part Number: PCM1840 Tool/software: Hi Ti team， Could you please help review this schematic ？
    • Answered

  • PCM1840: About Filters

    Resolved
    Part Number: PCM1840 Tool/software: Hi team, Is my understanding of the filter specifications correct? -The linear phase filter uses a linear phase FIR filter, which causes a delay derived from the FIR filter. -The low-latency filter uses an IIR filter…
    • Resolved
    • Answered

  • PCM1840: FFT noise at idle input with DRE disabled.

    Resolved
    Part Number: PCM1840 Tool/software: Hi team, Figure9 in data sheet seems to be a peak noise in the noise FFT at no input. So, I have some questions about it. (1) Is this peak noise as a characteristic of the PCM1840? 　 (2) I think the frequency of the…
    • Resolved

  • PCM1840: 3.3V is unintentionally input to the shutdown pin.

    TI Thinks Resolved
    Part Number: PCM1840 Tool/software: Hi team, The shutdown pin is connected to the CPU. Before the PCM1840 is turned on, the shutdown pin is subjected to a voltage of 3.3V for about 50ms by the CPU's specifications. Is this problematic for the device…
    • Answered

  • PCM1840: Low latency filter does not output well

    Resolved
    Part Number: PCM1840 Other Parts Discussed in Thread: PCM5101A , Tool/software: Hi team, I thought I could achieve this with the following information that I posted previously. https://e2e.ti.com/support/audio-group/audio/f/audio-forum/1475024/pcm1840…
    • Resolved
    • Answered

  • PCM1840: Synchronization with other devices

    Resolved
    Part Number: PCM1840 Other Parts Discussed in Thread: PCM1681 , , TLV320ADC3140 Tool/software: Hi team, I would like to synchronize the PCM1840 with the PCM1681 and use the same clock. Both ADC/DAC are communicated in 4-channel TDM with Slave operation…
    • Resolved

Didn't find what you are looking for? Post a new question.