TAS5825PEVM: Hybrid-Pro

Hi Jesse,

My customer still have some question as below.

1. For hybrid-pro boost, how many input level or frequency will let hybrid-pro rise up voltage?

2. What is the condition to let hybrid-pro boost output voltage?

3. Is there any document for hybrid-pro detail?

Test method:

1. Input different level and different frequency to check output power consumption.

2.Using storage oscilloscope and digital multi-meter to monitor Hybrid-pro PWM and PVDD behavior.

Thanks!

Jeff

Hi Jeff

thank you for your question.

1. For hybrid-pro boost, how many input level or frequency will let hybrid-pro rise up voltage?

only input level will let boost rise voltage. 9 levels been set in the ppc3.

2. What is the condition to let hybrid-pro boost output voltage?

according to the setting in the ppc3, once the input level achieve a certain level, the boost output will increase.

for example: you can see below screenshot, there are 9 steps, you move your mouse curse to the graph, it will tell us how much voltage will trigger the next level.

3. Is there any document for hybrid-pro detail?

below 2 links may help you.

https://training.ti.com/how-improve-battery-efficiency-tas5825m-hybrid-pwm-modulation?keyMatch=HYBRID%20MODULATION

https://www.ti.com/lit/an/slaa836/slaa836.pdf?ts=1663641867339&ref_url=https%253A%252F%252Fwww.ti.com%252Fsitesearch%252Fen-us%252Fdocs%252Funiversalsearch.tsp%253FlangPref%253Den-US%2526searchTerm%253Dhybrid%2Bmodulation%2526nr%253D3415

i think your measurement method seems no problem.

thanks.

jesse

Hi Jesse,

Thanks for the information.

I have another question for below flow, as I know, I2S OUT and amplifier should both be behind of Crossbar(figure2), but in PPC3, show as below figure1. 

Which one is correct?

Figure1:

Figure2:

Thanks!

Jeff

Hi Jesse,

There have few questions as below.

1.In figure1, Digital Gain setting from figure2 PPC3 GUI red mark?

2. As question 1, Digital Gain register is figure.5 DIG_VOL?

3. In figure1 analog gain adjust, is it in figure3 and figure4 mark?

Figure.1

Figure.2

Figure.3

Figure.4

Figure.5

Jeff