Hi ...
We are using TLV320AIC14KIDBTR in one of our audio processing card.
The input to the TLV320AIC14KIDBTR will be MICIN or 1.5 Vrms differential signal.
The output of the TLV320AIC14KIDBTR will be given as an input to LM4902MM/NOPB or OPA1632DR through analog DPDT switch.
The output of the LM4902MM/NOPB will be interfaced to a Headphone(1.5 Vrms, 150 Ohm).
The output of the OPA1632DR will be interfaced to a 12 Vrms, 600 Ohm load.
The TLV320AIC14KIDBTR will be configured through FPGA.
Can the MICIN interface be directly connected to MICIN pin of TLV320AIC14KIDBTR ? or It needs to be connected to INP1 and INM1 pins of TLV320AIC14KIDBTR ?
The differential 1.5 Vrms signal is connected to INP2 and INM2 pins of TLV320AIC14KIDBTR.
We are planning to configure DAGAIN of TLV320AIC14KIDBTR to 20 dB, while switching the output data to OPA1632DR. Is it fine ?
Requesting you to review the attached schematics and give your feedback.
Warm Regards,
Manjunath.B
