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Part Number: PCM5100A
We used PCM5100A for experiments. The I2S audio signals BCK, LRCK and DIN are inputted to the PCM5100, and the BCK, LRCK, DIN pin Waveform as an attachment, however, there are no outputs.Test VNEG=-3.3,CAPP=1.65V,CAPM=-1.65V.1273.I2S_PCM5100A.pdfI2S.rar
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In reply to Paul_Frost:
I‘m very sorry for the late reply.
LDOO=1.8V, DVDD=1.8V, AVDD=3.3, and XSMT conected to AVDD=3.3V;
An RC is connected to the DAC, reference EVM design.
As shown in the attached schematic, D211 and D212 have been removed.Use oscilloscope AC mode test.
I2S_PCM5100A _ I2S_PCM5100A.pdf
In reply to user1889142:
It can be ensured that there is no output, and the probe point is the same on the L/R output as the waveform on the GND, only the noise floor. No waveforms are saved yet, and waveforms are emitted later.From the DIN pin, you can see that there is data input.
The problem has been solved, because the SCLK frequency sent by the CPU is 5644.848KHz, the BCK frequency is 1411.20144KHz, and the sample frequency is 44.1Khz. According to Table 11, the PLL MODE needs to be configured at this time. The SCLK access needs to be deleted and processed by the PCM5100A internal PLL. .In addition, is there a chip with a P 2 P chip with volume adjustment instead?
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