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Glossary

THE TAS3204

We will examine key parts of this component:

dsp


Analog I / O, audio processor and general specifications.

 

ADCs:

There are 3 component stereo differential analog inputs that can be sent to one of CANS to be converted to digital. The CANs are of differential kind, with sigma delta modulation and a sampling rate of 256 times.

The differential input possesses advantages over single ended input. While for single ended input the ground is taken as reference,  the differential inputs are taken as a reference to another. In practice, mounting the differential can be much more accurate because the processing is done on the difference of the signals regardless of the magnitude of these, while for single ended, if one goes up a lot we can not keep a good precision because we should reflect the magnitude of the signal. 
It has good accuracy in the ADC's input. 

The C's are sampling with delta-sigma modulation. 
    What does that mean?
Delta modulation tests whether the signal sample exceeds the signal level and thus obtains the corresponding numerical value: 


diffsingle

We have a good accuracy in the DAC input.

The DACs do samplic in sigma-delta modulation. What does this mean?
Delta modulation tests whether the signal sample exceeds the signal level and thus obtains the corresponding numerical value:
delta

In Sigma-Delta modulation we will integrate the signal and then we will apply the same method for sampling delta modulation. And so we output the numerical value of our analog signal input.

sigma
One advantage of the Sigma-Delta against Delta is that the noise is separated from the signal, while in the Delta, they go together.

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DACs:

The TAS3204 has 2 DACs made in "digital interpolation filter". Same as the ADCs, it uses the Sigma-Delta modulation plus they have a reconstruction filter. The maximum sampling thereof is 48KHz. Each NAC increases the resolution of the input signal by 128.
And what does that mean?
The DACs have filters like "digital interpolation" which offer advantages such as excellent flexibility, high performance (in thermal attenuation and selectivity). Greater stability and less time for the filtering process. In addition, CSPs are being incorporated in digital filters. One example of the incorporation of a DSP is in cellular base stations.
The CNAs have sigma delta modulation as for CANS. The maximum frequency of CNAs is 48KHz. The resolution of the input signal is increased by 128 before converting the analog signal output.

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MUC:

The Digital processor is a dual-core device which has a microcontroller. It runs at 135MHz, and the DSP is capable of up to five operations per clock cycle. The microcontroller is a 8051 stadard core. It optimizes the TAS3204 by controlling the algorithms and the communication (I2C). The DSP posseses a 48 bits bus which enables the data processing. Its unique 76 bits cycle accelerates the sound algorithm processing.

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I2C:

The I2C communication port

The communication port is a I2C (For more information see glossary)

The main functions of this communication port are:

-High transfer rate

-Ease of data transfer between various components.

i2c

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