TLV320AIC12KEVM

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Evaluating audio ICs on the performance can be a challenging task for designers.

To address this challenge, Texas Instruments has developed the TLV320AIC12KEVM Evaluation and Demonstration Board. This board facilitates a quick evaluation of basic features of the TLV320AIC12K analog-to-digital and digital-to-analog converters, so that system designers can quickly assess the chip performance.

Introduction to the TLV320AIC12KEVM

The TLV320AIC12KEVM offers four audio interfaces: PDMI, AC-coupled differential, PDM Mode III and serial digital audio. The board also features amplifier and programmable gain control outputs. To keep the board layout cost and space optimized, the board features banks of connectors and switches, all of which enable designers to rapidly evaluate the features of the TLV320AIC12K.

Hardware Overview of TLV320AIC12KEVM

The board is designed to accept a wide range of inputs and outputs, including line in/out, microphone in/out, S/PDIF digital audio I/O, and a 3.5mm stereo input and output. All audio I/O ports are situated on the main board along with LED indicators. The board also provides an I2C communications serial EEPROM, as well as on-board power with key switch, enable switch and I2C bus pull-up resistors.

The microphone inputs can be used for 4- or 3-bit PDM mode III mode inputs, and the the three-pin PDMI IN and OUTheader provide access to the PDM interface. All power rail signals, along with the five PDMI pins, are connected to the TLV320AIC12K using headers.The power rails and various LED indicators are connected through a two pin board end part. There are also remote control signals on the board used to enable and disable the TLV320AIC12K audio //www.taopractice.com/ and S/PDIF digital audio systems.

Applications of the TLV320AIC12KEVM

The TLV320AIC12KEVM is ideal for use in applications such as sound systems and consumer audio products. The board is capable of supporting full-duplex audio sampling as well as serial digital audio, making itcompatable with many existing audio systems.

Working Principle of TLV320AIC12KEVM

At the core of the TLV320AIC12KEVM is the TLV320AIC12K codec chip. This device contains two separate ADC and DAC converters, each of which is capable of converting analog signals to 16-bit digital signals and vice versa. In addition, the device can also support up to 8-channel multiplexed digital I/O.

Conclusion

The TLV320AIC12KEVM Evaluation and Demonstration Board is an ideal tool for system designers wanting to quickly and effectively evaluate the features of the TLV320AIC12K chip. The board is compatible with many existing audio systems, and provides flexible options for testing the performance of the chip.

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