Texas Instruments ADCx120EVM, User Manual, Page: 6 / 36

the J3 header IOVDD. For 1.8-V operation, short pins 2 and 3 of header J3; for 3.3-V operation, short pins 1
and 2. When the motherboard is fully powered and the power supplies from the onboard LDOs are correct, the
green POWER LED (D3) turns ON. The USB READY LED indicates that a successful USB communication is
established between the AC-MB and the host computer.
2.2 ADCx120EVM-PDK Hardware Settings
The TLV320ADCx120 evaluation module has several input configuration options and offers extensive flexibility
to allow the user to evaluate the device across multiple operation modes. The different operation modes are
highlighted in this section. The INxP and INxM pins of the TLV320ADCx120 can optionally connect to onboard
microphones for quick evaluation, and can be optionally configured to bypass the input decoupling capacitors
for evaluating the functionality of digital microphones, GPIOs, or in DC coupled applications.
Figure 2-7 shows a
diagram of the EVM input architecture.
Figure 2-7. TLV320ADCx120EVB Input Architecture
Hardware Overview www.ti.com
6 ADCx120EVM-PDK, PCMD3140EVM-PDK Evaluation Module SBAU359A – MAY 2019 – REVISED JUNE 2021
Submit Document Feedback
Copyright © 2021 Texas Instruments Incorporated