TAS2505-Q1: About block diagrams

Koji Hayashi92

Mastermind 6970 points

Part Number: TAS2505-Q1

Hi TI-team

Do you have a detailed circuit block diagram ?

In the block diagram, only the attenuator, mixer, and class D amplifier are found in the analog path.

I think that an oscillator and a comparator are used.

Best Regards,

Koji Hayashi

over 4 years ago

0 Luis Fernando Rodriguez S. over 4 years ago

TI__Guru* 84915 points

Hi, Hayashi-san,

The only block diagram that we have is located in the main page of the datasheet:

http://www.ti.com/lit/ds/symlink/tas2505-q1.pdf

I think you refer to the details for the delta sigma modulator. You may find more details about the delta sigma behavior in these documents:

http://www.ti.com/lit/an/slyt423a/slyt423a.pdf

http://www.ti.com/lit/an/slyt438/slyt438.pdf

Please notice that these documents refer to the ADC behavior. In case of the delta sigma DAC, the diagram would be inverted. I mean, the signal data will start with an interpolation filter, then the digital filer and finally the delta sigma modulator. For further details about the interpolator filter and the digital filters, please consult the section 2.4.1.1 from the reference guide:

http://www.ti.com/lit/ug/slau472/slau472.pdf#page=10

I hope this helps you. Please let me know if you have additional questions or comments on this.

Best regards,
Luis Fernando Rodríguez S.

0 Koji Hayashi92 over 4 years ago in reply to Luis Fernando Rodriguez S.

Mastermind 6970 points

Hi Luis-san

Thank you for quick response.

I understand that there is no detailed block diagram.

I will contact the customer.

Best Regards,

Koji Hayashi

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TAS2505-Q1: About block diagrams