IN1 and IN2 Input
Terminals
External Microphone
3.5-mm Jack
External
Micbias
Terminal
Headers to Bypass
AC-Coupling caps
for IN1 and IN2
Onboard
Microphone
Switch to set
CAPLESS or AC-Coupled
Headphone Jack Output
Mono Headphone
3.5-mm Jack
Mono Headphone
Output Terminal
Headers to set
CAPLESS or AC-Coupled
HP Output Terminal
Left and Right Line
Output Terminals
Out-of-Band Noise
Low Pass Filter
Low-Pass Filter for
Measuring HP
Output
Micbias Selection
Header
Onboard Mic
Header to IN1
EVM Description and Basics
9
SLAU738 – September 2017
Copyright © 2017, Texas Instruments Incorporated
TLV320AIC3109EVM-K
Figure 4. Analog Section of the TLV320AIC3109EVM