ZHCSGM5A August 2017 – November 2017 TLV320AIC3109-Q1
PRODUCTION DATA.
The TLV320AIC3109-Q1 requires a hardware reset after power-up for proper operation. After all power supplies are at their specified values, the RESET pin must be driven low for at least 10 ns. If this reset sequence is not performed, the TLV320AIC3109-Q1 may not respond properly to register reads or writes.
This device also offers a software reset (page 0, register 1) that can be used by the host to reset all registers on page 0 and page 1 to their reset values. In cases where changes are needed only for routing or volume-control registers, these changes can be accomplished by writing directly to the appropriate registers rather than using the software or hardware reset.
In cases where the ESD events generate a device reset, a minimum 1-nF capacitor is recommended to be connected between the RESET pin and DVSS. This capacitor avoids ESD events that can place the codec in default state.