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PCM1864: Using PCM1864 configured to 24 I2S output, oscilloscope measured actual output only 16 effective bit.

user4359409
Prodigy 130 points
Part Number: PCM1864
Other Parts Discussed in Thread: PCM1865

Dear,

Using PCM1864 configured to 24 I2S output, oscilloscope measured actual output only 16 effective bit,

1. Measure waveform

2. Configuration

  • 0
    TI__Guru 57800 points

    Hi,

    This is an expected behavior for the PCM1864 as this device has a target SNR performance of -103dB. if 24-bits of data are required, please take a look to the PCM1865, which is similar to the PCM1864 but has a SNR performance of -110dB.

    Best Regards,

      -Diego Meléndez López
       Audio Applications Engineer