Hello,
Record with a fixed gain using a microphone.
Recording Sound is breakiing up.
Breaking up is proportional to PGA gain. It occurs from over 50dB.
Breaking up relation to Sampring rate.
Breaking up lengths and intervals are random.
Registers used (excluding sampling frequency)
Register 25: MICBIAS 0X40 2.0V
Register 42: Output Driver Pop Reduction 0X50 Driver power-on time = 50msec
Register 12: Audio Codec Digital Filter 0XA0 ADC high-pass filter -3-dB
Register 15: Left-ADC PGA Gain 0X77 gain = 59.5 dB
Register 16: Right-ADC PGA Gain 0X77 gain = 59.5 dB
Register 26: Left-AGC Control 0X00 Left AGC is disabled.
Register 29: Right-AGC Control 0X00 Right AGC is disabled.
Register 27: Left-AGC Control 0X00 gain = 0 dB
Register 30: Right-AGC Control 0X00 gain = 0 dB
Register 32: Left-AGC Gain 0XE8 gain = -12 dB
Register 33: Right-AGC Gain 0XE8 gain = -12 dB
Register 19: MIC1LP/LINE1LP to Left-ADC 0X7C LINE1L is not connected to the left-ADC PGA. LADC_CPC
Register 22: MIC1RP/LINE1RP to Right-ADC 0X7C LINE1R is not connected to the right-ADC PGA. RADC_CPC
Register 17: MIC2L/R to Left-ADC 0X0F Input level = 0 dB, MIC2R/LINE2R is not connected to the left-ADC PGA.
Register 18: MIC2/LINE2 to Right-ADC 0XF0 Input level = 0 dB, MIC2R/LINE2R is not connected to the right-ADC PGA.
Best Regards,