SLAS510G March 2007 – February 2021 TLV320AIC3104
Determines how quickly the PGA gain is increased when the input signal is too low. It can be varied in the range from 0.05 s to 22.4 s. The extended right-channel decay time can be programmed by writing to page 0, register 104, and the left channel is programmed by writing to page 0, register 106.
The actual AGC decay time maximum is based on a counter length, so the maximum decay time scales with the clock setup that is used. Table 10-2 shows the relationship of the NCODEC ratio to the maximum time available for the AGC decay. In practice, these maximum times are extremely long for audio applications and should not limit any practical AGC decay time that is needed by the system.
|NCODEC RATIO||MAXIMUM DECAY TIME (SECONDS)|