Fine tune parameters:
n Limiter Threshold: 0 ~ -46.5dB, 1.5dB/step
n Attack Rate: T=(4*2^n)/sample rate, n=REG0x64[12:8]
n Recovery Rate: T=(4*2^n)/sample rate, n=REG0x64[12:8]
n Noise Gate Threshold: -36 ~ -82.5dB, 1.5dB/step
n Reducing Noise Level: 0 ~ 45dB, 3dB/step
Input signal
ALC5633Q
Datasheet
Target Level
Noise Gate
ALC gain
0dB
Attack Rate
Output signal
Recovery Rate
Attack Rate
Recovery Rate
Noise Reduction
Target Level
Noise Gate
Figure 14. ALC for Recording Mode
I2S Stereo Audio Codec + Mono Class-AB/D Amp
17
Rev. 0.1