Dear support
In our product using a TLV320AIC3107IYZF we observe anomalies in the analog volume configured using the "Page 0 / Register 85: DAC_R1 to LEFT_LOP Volume Control Register".
These are our observations for a 1kHz fixed amplitude tone on the I2S input:
gain output output anomaly
setting frequency level
kHz mV
------------------------------------------------------------------------
127 (mute) 1 1.36 not muted
112 (-62.7dB) 2 0.16 double frequency
111 (-60.2dB) 1 1.61 high gain
110 (-58.3dB) 1 1.40
108 (-55.3dB) 1 3.10
104 (-52.2dB) 1 5.58
98 (-49.3dB) 1 8.92
Gains above 110 (-58.3dB) are ok.
Can you assist us to identify the cause of the anomalies please?
Best regards
Alister
