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  • PCM1794A: Output of one side channel is reduced

    TI Thinks Resolved
    Part Number: PCM1794A Other Parts Discussed in Thread: PCM1794 Hi team, When we designed the board with the attached schematic, the output current of one channel drops at a frequency of about 1 in several 10 units. Is there a problem with this schematic…

  • PCM1794A: PCM1794ADBR Frequency Response Issues

    TI Thinks Resolved
    Part Number: PCM1794A Other Parts Discussed in Thread: NE5534 , TINA-TI PCM1794ADBR Frequency Response Issues.pptx PCM1794ADBR Frequency Response Issues Hello TI team! We are using PCM1794A new design, test audio output frequency response high frequency…
    • Answered

  • RE: PCM1794A: Operation of the VCOM pin

    Resolved
    Hi Arash, I understand very well, sir. Thank you very much. Best, Ryu.

  • OPA1612: Question about phase margin of circuit(PCM1794A - Reference simulation TINA)

    TI Thinks Resolved
    Part Number: OPA1612 Other Parts Discussed in Thread: PCM1794A Hello Mr or Mrs. Happy new year~!I am always grateful for your help. :) I am designing a circuit which is related DAC output and it confuses me. This is a PCM1794a reference TINA simulation…
    • Answered

  • PCM1794A: Clock timing when using mono mode

    Resolved
    Part Number: PCM1794A Other Parts Discussed in Thread: PCM1792 Hello, When are the I2S data clocked into the DAC in the PCM1792/1794 when used in mono mode? Should one channel be delayed relative to the other or will both DACs receive data on the same…
    • Resolved
    • Answered

  • PCM1794A: PCM1794A output distortion

    Resolved
    Part Number: PCM1794A Other Parts Discussed in Thread: NE5534 , , PCM5121 Hello， One customer used PCM1794A for his design, the output IV and LPF used NE5534, its power supply is +-12V. If the input sample rate is 48K, 16bit, and I2S 18Khz signal, the…
    • Resolved

  • PCM1794A: What should be the cut-off frequency of second-order filtering for the audio output by the PCM1794A DAC

    TI Thinks Resolved
    Part Number: PCM1794A Other Parts Discussed in Thread: PCM1794 , TINA-TI Hi，team， My customer has questions about PCM1794A , " What should be the cut-off frequency of second-order filtering for the audio output by the PCM1794A DAC“ Regards…

  • PCM1794A: THD+N and SNR improvement

    Part Number: PCM1794A Other Parts Discussed in Thread: TPS65131 , , SA5534 , SA5532 Hi team, Here's an issue from the customer may need your help: Designed with PCM1794A, backend IV SA5532, LPF uses SA5534. The op amp supplies ±12 V (TPS65131+TPS7A4701…

  • PCM1794A: adverse effects if the capacitance values of these two capacitors are reduced by 10 times

    TI Thinks Resolved
    Part Number: PCM1794A Hi Team, Good day. I am posting this inquiry on behalf of the customer. At present, we use the DAC PCM1794A to make a batch of development board, debugging found that C168 and C203 two capacitors use the recommended capacity of 2700PF…
    • Answered

  • PCM1794A: LPF with INA1650

    Resolved
    Part Number: PCM1794A Other Parts Discussed in Thread: PCM1794 , OPA2132 , NE5534 Hello! I want to build a PCM1794 DAC and use a 12V battery with it. Please see if I organized one polar supply for LPF correctly? Also LT1028 is currently out of stock. …
    • Resolved

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