TLC320AC02CPM

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Interface - CODECs

The TLC320AC02CPM (codec) is a low-power digital standards compliant audio CODEC integrated circuit. It provides a complete set of hardware and firmware functions to capture, playback, and control to full audio applications. The codec integrates three analog-to-digital converters, two digital-to-analog converters, a stereo microphone preamplifier, a stereo headphone driver, and signal processing functions such as digital mixing, equalizing, and limiting. The codec also contains on-chip digital audio interface logic that supports both the I2S and 2-wire (SPI) digital audio interfaces. The primary application for TLC320AC02CPM is for use in mobile multimedia handsets, personal navigation systems, and portable audio players.

The working principle behind an audio codec is the digitization of analog audio signal. In its simplest form, the codec encodes analog signal into digital signal. This is accomplished by a ensemble of components, such as analog-to-digital converters, digital-to-analog converters, signal processing functions, and digital audio interface logic.

The ADC and DAC are the key components in an audio codec which enable analog signal input and digital signal output, respectively. This digitized information is then made available to a processor or embedded digital signal processor (DSP) system for the manipulation of the signal. Signal processing functions such as equalization, compression, filtering and echo cancellation can be applied to this digital data of the analog signal.

The digital audio interface logic is made up of logic control block and clock generator. This logic will allow the processor or embedded system to communicate with the codec via the serial interface. Specific bits in the control register will allow the processor to control audio data formats, sample rate, transmit monitor control, mute and gain settings.

In a general sense, the working principle of the TLC320AC02CPM is similar to other codecs. The TLC320AC02CPM consists of a stereo microphone preamplifier and stereo headphone driver, and supports both I2S and 2-wire (SPI) digital audio interfaces. In addition, the TLC320AC02CPM also integrates three 10-bits delta-sigma analog-to-digital converters (ADC), two 10-bits delta-sigma digital-to-analog converters (DAC), and signal processing functions such as digital mixing, equalizing, and limiting.

The TLC320AC02CPM is ideal for portable audio applications because it needs minimal external components and provides excellent performance with low power consumption. It is also a suitable choice for navigation systems, where its low power consumption allows the system to run for longer periods of time.

In conclusion, the TLC320AC02CPM is suitable for portable audio applications and navigation systems. Its low power consumption allows the system to have extended battery life. The codec integrates various components such as analog-to-digital converters, digital-to-analog converters, a stereo microphone preamplifier, a stereo headphone driver, and signal processing functions such as digital mixing, equalizing, and limiting. The codec supports multiple digital audio interfaces such as I2S and 2-wire (SPI).

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