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ALC5611-GR Datasheet(PDF) 20 Page - Realtek Semiconductor Corp. |
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ALC5611-GR Datasheet(HTML) 20 Page - Realtek Semiconductor Corp. |
20 / 73 page ![]() ALC5611 Datasheet AC’97 Audio Codec + Touch Panel Controller 12 Track ID: JATR-1076-21 Rev. 1.1 7.5. Audio Data Path 7.5.1. Stereo ADC The stereo ADC is used for recording stereo sound. 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. Mixers The ALC5611 supports four mixers for all audio function requirements: • Headphone mixer for 2 channels • MONO mixer • Speaker mixer • ADC record mixer 7.5.3.1 Headphone Mixer The headphone mixer is used to drive stereo output, including HP_OUT_L/R, SPK_OUT_L/R (SPK_OUT_LN/RN) and MONO_OUT (MONO_OUTN). The output of the headphone mixer can be input to the ADC record mixer. The following signals can be mixed into the headphone mixer: • LINE-IN_L/R (Controlled by Reg0A) • PHONEP/N (Controlled by Reg08) • MIC1P/N and MIC2P/N (Controlled by Reg22 & Reg10) • Stereo DAC output (Controlled by Reg0C) • ADC record mixer output (Controlled by Reg12 & Reg14). Note: The headphone mixer can be powered down by setting Reg3C[5][4]. |
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