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ALC5610-GR Datasheet(PDF) 28 Page - Realtek Semiconductor Corp. |
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ALC5610-GR Datasheet(HTML) 28 Page - Realtek Semiconductor Corp. |
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28 / 93 page  ALC5610 Datasheet AC’97 Audio Codec + Touch Panel Controller + Voice PCM Interface 19 Track ID: JATR-1076-21 Rev. 1.4 7.5. Audio Data Path 7.5.1. Stereo ADC and Voice ADC The stereo ADC is used for recording stereo sound or, by setting voice_adc_enable, can be configured to MONO PCM ADC (Left channel of stereo ADC) + voice ADC (Right channel of stereo ADC) when using bluetooth and recording at the same time. • When voice_adc_enabl=0, the sample rate of the stereo ADC can be configured via setting Reg32. • When voice_adc_enabl=1, the sample rate of the voice ADC is set by Reg66, and the sample rate of the MONO PCM ADC is set by Reg32. The sample rate of the stereo ADC is independent of the stereo DAC sample rate. In order to save power, the left and right ADC can be powered down separately by setting Reg3C [6], [7]. PR0=1 will disable both channels of the ADC. The volume control of the stereo ADC is set via Reg12[11:7][4:0]. 7.5.2. Stereo DAC The sample rate of the stereo DAC is controlled by Reg2C. Reg0C[12:8][4:0] can be used to control the volume of DAC output. 7.5.3. Voice to Stereo Digital Path The ALC5610 supports a voice to digital stereo path for voice command through Bluetooth by setting Reg42[15]=1. The Voice data will be transferred from the voice I2S/PCM to the AC’97 directly. This function is only supported when the Voice and Stereo I2S/PCM are in Master Mode. The driver should set the same sample rate between the Voice DAC and the stereo ADC. When a voice to stereo digital path is enabled, the signal from Voice_I2S/PCM is direct output to Left (slot 3) and is duplicated to Right (slot 4) of the AC’97 interface. The Voice to Stereo Digital Path and Voice ADC functions can exist at the same time. |
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