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ALC5610-GR Datasheet(PDF) 29 Page - Realtek Semiconductor Corp. |
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ALC5610-GR Datasheet(HTML) 29 Page - Realtek Semiconductor Corp. |
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29 / 93 page  ALC5610 Datasheet AC’97 Audio Codec + Touch Panel Controller + Voice PCM Interface 20 Track ID: JATR-1076-21 Rev. 1.4 7.5.4. Voice DAC The Voice DAC is dedicated to playback of received voice signals from the voice_I2S/PCM interface. Typically, it is used at an 8kHz sample rate. In Voice I2S/PCM Master mode, the sample rate is set by the VoDAC clock Divider (Reg64). In addition, Reg66[7:4][2:0] is used to set the over-sample rate clock divider of the Voice ADC/DAC filter to 64Fs or 128Fs. Reg66[13] must be set according to the over-sample rate clock. Performance at 128Fs is better than 64Fs, but with higher power consumption. For best performance, the frequency of the Voice DAC Sigma Delta clock must be equal to, or higher than, the Voice DA filter over-sampling rate. The volume control of the Voice DAC is set via Reg18[12:8]. 7.6. Mixers The ALC5610 supports four mixers for all audio function requirements: • Headphone mixer for 2 channels • MONO mixer • Speaker mixer • ADC record mixer 7.6.1. 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) • Voice DAC output (Controlled by Reg18) • 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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