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TLV320DAC3101: Initialization sequence

user5287531
Prodigy 20 points
Part Number: TLV320DAC3101

Hello,

 

I would like to ask to two questions for the initialization sequence.

 

Q1. Is there any sequence regulation between /RESET and I2S signal?

Q2. Or is this no problem if /RESET goes High before I2S input?

 

Currently, I am thinking about the following sequence for my project.

However, I don’t know which sequence is better for the device.

Could you give me any advice for it?

 

Plan.1

1. Power-on

2. I2S Input

3. /Reset : High

4. I2C setting

 

Plan.2

1. Power-on

2. /Reset : High

3. I2S Input

4. I2C setting

 

Best regards,

  • 0
    TI__Guru** 109595 points

    Hi,

    Either plan would be OK for TLV320DAC3101.

    The clock source on I2S is needed before the internal clock tree is initialized. However it does not matter if the device is Reset before or after I2S signals are present.

    Best regards,
    -Ivan Salazar
    Applications Engineer - Low Power Audio & Actuators