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  • PCM1822: Corrupted/Odd serial output

    Resolved
    Part Number: PCM1822 Sirs: I have designed a schematic and PCB that uses the PCM1822 as an i2s input to the ADAU1701 DSP. However, it is not working as expected. When I examine the PCM1822 signals, I see the FSYNC/LRCLK and BCLK operating as I would…
    • Resolved
    • Answered

  • PCM1822-Q1: Line inputs with op amp buffers

    Resolved
    Part Number: PCM1822-Q1 Other Parts Discussed in Thread: PCM1822 Tool/software: Hi, I am currently developing an audio frontend for a portable synth application, and I had a couple of questions regarding the input impedance of the PCM1822 and its relation…
    • Resolved

  • PCM1822: PCM1822IRTER audio noise floor goes high

    Part Number: PCM1822 Tool/software: Hi Officer, We use PCM1822IRTER as ADC, and my audio source is single-ended. (During the experiment, the audio source comes from the laptop AUX, and AUX_L_GND and AUX_R_GND come from the laptop's AUX's GND pin). …

  • PCM1822: Low pass filter cut of at 48Hz?

    Part Number: PCM1822 Other Parts Discussed in Thread: PCM1802 , PCM1809 , PCM1821 , PCM1820 , TLV320ADC3120 Tool/software: Hello I tried PCM1822 on the evm board. I have found that if I set it to 192k I got 48Hz low cut. I confused because now days…
    • Answered

  • PCM1822: TDM mode / function of the FMT0 pin

    Resolved
    Part Number: PCM1822 Other Parts Discussed in Thread: PCM1681 Tool/software: I am confused by the datasheet about the function of the FMT0 pin. According to section 8.3.2 / table 8-2 FMT0 selects whether to use I2S or TDM mode. There's nothing said…
    • Resolved

  • PCM1822-Q1: Function of the AREG and DREG Pins

    TI Thinks Resolved
    Part Number: PCM1822-Q1 Tool/software: Hi TI teams, I have a question about the AREG and DREG Pins of the PCM1822-Q1. I use external voltage supplies to AVDD and IOVDD pins. If I do NOT use AREG and DREG pins as power supplies, could I remove all…
    • Answered

  • PCM1822: Single Ended Line-Input

    Resolved
    Part Number: PCM1822 Other Parts Discussed in Thread: PCM1821 , PCM1861 Hi:) - Does the PCM1822/PCM1821 support Single-Ended stereo Line-Inputs for standard auxiliary audio, or would the PCM1861 be a better fit for this? Also, are any circuit…
    • Resolved

  • PCM1822: single-ended input

    TI Thinks Resolved
    Part Number: PCM1822 Hello Experts, If customer would like to use a single-ended input(signal input INP-pin), how customer should treat INM-pin? INM-pin connects a GND through capacitor(same value of INP-pin AC coupling capacitor)? Best Regards, Fuji…

  • PCM1822: Full scale AC signal voltage

    TI Thinks Resolved
    Part Number: PCM1822 Hello Experts, The full scale AC signal voltage is stated 1Vrms(typ) in datasheet. The condition is AVDD is 3.3V. If AVDD is 3.1V, it will be reduced? Also if AVDD is 3.1V, the other spec(SNR, DR and so on) will be reduced? Best Regards…

  • PCM1822-Q1: Can I seperate AGND and DGND?

    Part Number: PCM1822-Q1 Other Parts Discussed in Thread: PCM1820 Hi expert, Can I seperate AGND and DGND, and only pour AGND copper around PCM1822-Q1?

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