ALC5624-GR 데이터 시트보기 (PDF) - Realtek Semiconductor

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ALC5624-GR

HAND-HELD MULTIMEDIA I2S AUDIO CODEC

Realtek Semiconductor 

ALC5624

Datasheet

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].

The volume control of the stereo ADC is set via Reg12[11:7][4:0].

7.5.2. Stereo DAC

The stereo DAC can be configured to different sample rate by setting the stereo I2S clock divider

(Reg60).

Reg0C[12:8][4:0] can be used to control the volume of DAC output.

7.6. Mixers

The ALC5624 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)

• ADC record mixer output (Controlled by Reg12 & Reg14).

Note: The headphone mixer can be powered down by setting Reg3C[5][4].

Hand-Held Multimedia I2S Audio Codec

15

Track ID: JATR-1076-21 Rev. 1.3

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