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TAS5558: System on one board.

Denis Telichko
Prodigy 20 points
Part Number: TAS5558
Other Parts Discussed in Thread: TAS5634, TAS5624, TAS5825M, TAS5805M, TAS3251

Hi! I like high-quality sound. I think that the minimum number of sound transformations will help me achieve the best quality. I want to get rid of DAC and ADC completely. In my system, I want to use a separate amplifier for low, mid, and high frequencies under program control, using one TAS5558, two TAS5624, and one TAS5634.
I have the following questions:
1. Can I implement my idea more easily using other components?
2. TAS5558, TAS5624, TAS5634 are the best solutions from TI in their classes?
3. Which USB to I2S Converter should I use for the system?
2. What hardware is needed to manage TAS5558?
4. Can I get the DSP management software for TAS5558?

  • 0
    TI__Mastermind 18547 points

    Hey Denis, 

    I would recommend to use the TAS5825M as a one chip solution. 

    If you would like a lower price point you may use TAS5805M. 

    Can you tell me more about your system? What is your load and power requirements? 

    All the best, 
    Carolina 

  • 0 in reply to Caro Walter
    Prodigy 20 points

    I need more power than the TAS5825M can provide me.
    The price of 5558 suits me.
    I need to get from the DSP left low, left mid, left high, right low, right mid and right high audio frequencies signals and converted its to 6 PWM signals. These 6 signals are fed to 3 two-channel amplifiers. I need THD+N less then 0.1% for mid and high frequencies, and less then 0.2% for low frequencies. 
    My load is 6 speakers each with 8ohms resistance. Power requirements 60 watts/chanel for high frequencies, 60 watts/chanel for mid frequencies, 120 watts/chanel for low frequencies.

    All the best,
    Crimea

  • 0 in reply to Denis Telichko
    TI__Mastermind 18547 points

    Hello Crimea, 

    So you have DSP providing I2S signals?

    And need an output of 60 watts/channel for high frequencies, 60 watts/channel for mid frequencies, 120 watts/channel for low frequencies onto 8 ohm loads?

    We have devices that accept I2S and provide output at the select channels, there is no need for a PWM generator.

    The parts that you are currently looking into are older parts before the modulator was not integrated into our devices. 

    I believe the TAS3251 will be best fit and you would need 3 for the 6 speakers. The TAS3251 is controlled via I2C and has a GUI available through PPC3. 

    All the best,
    Carolina