The CAT5 PDM/PCM Supports the following conversion parameters:
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Mode: Mono Left, Mono Right
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Word Length: 16 bits
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Sampling Rate: PDM/PCM rates:
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2.048M/16k (decimation rate=128)
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2.048M/8k (decimation rate=256)
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1.024M/16k (decimation rate=64)
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1.024M/8k (decimation rate=128)
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(DMIC only) 512k/16k (decimation rate=32)
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(DMIC only) 512/8k (decimation rate=64)
The following features are not supported:
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Stereo
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DMA Transfers
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Left/Right Gain Amplifier Configuration. The gain is always unity
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CYHAL_PDM_PCM_RX_NOT_EMPTY and CYHAL_PDM_PCM_RX_UNDERFLOW events
Limitations: The PDM-PCM read using cyhal_pdm_pcm_read() can only be performed with length of 128.