ALC5633 데이터 시트보기 (PDF) - Realtek Semiconductor

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ALC5633

I2C + I2S Stereo Audio Codec Mono Class-AB/D Amp

Realtek Semiconductor 

Input signal

ALC gain

0dB

Attack Rate

Output signal

ALC5633Q

Datasheet

Target Level

Recovery Rate

Figure 13. ALC for Playback Mode

Recording Mode:

For ADC recording mode, when the input signal exceeds target threshold, the signal will decrease “ALC

Digital Volume” (0.375dB/step at every zero-crossing) until drop to target level then keep the digital

volume. When input signal is below the target threshold, the signal will step-up “ALC Digital Volume”

(0.375dB/step every zero-crossing) until return to original level. If want to return to the target level, need

to set the pre-gain to achieve.

When input signal is below noise gate, the input signal will be reduced and to suppress the background

noise. The reducing level can be set by register. And when input signal is above noise gate, the input

signal will be boosted to target level.

I2S Stereo Audio Codec + Mono Class-AB/D Amp

16

Rev. 0.1

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