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TLV320DAC3203 & TPA2013D design advice

Other Parts Discussed in Thread: TLV320DAC3203

Hello all,

With my current project I am working on, I have a TPA2013D that is being powered from a single Li-Ion battery, hooked up to a 4 ohm speaker. I want to add a TLV320DAC3203 to it, to offer some local EQ settings, and to keep the analog potion to a minimum. I am getting stuck on what I should do about powering both of them. I do have a couple ideas;

1)  Use the boost converter of the TPA2013D, that is set to 5.5V, to power both the class-D amp, and the TVL320DAC3203. I would be using a 3.3V LDO, and a 1.8V LDO for the DAC power.

2)  design a separate 5.5V boost converter to power both the class-D amp, and LDOs for the DAC.

I am trying to keep things simple as possible. 

Does anyone have an idea on what would be my best option? I am not looking to save cost, but I am worried about space. I dont have that much room to work with. And I am also worried about sound quality. 

Thanks

Anthony

  • Hi, Anthony,

    The most important thing with the power supplies of the codecs is to ensure that it is well regulated. Both options are correct, but it would only depend of the regulation of the power supply. Since you will use a boost converter, I would suggest to be sure that it doesn't have a high ripple. So, you would only need to verify the cost and the space of your design.

    However, the boost converter of the TPA2013D is recommended to be used on the amplifier. Its use on external components is not suggested and we cannot guarantee it will work.

    Best regards,
    Luis Fernando Rodríguez S.