PCM1864: Co-efficient calculator for Aux-ADC HP and LP filters

Peter Scheiwiller

Part Number: PCM1864

Hi there,

Does anyone know of a calculator to work out the secondary ADC biquad filter co-efficients in 1.23 format for PCM1864 if you want to change the frequency response for Energysense function?

I already have the spreadsheet for mixer co-efficients, but that doesn't help really.

Thanks

Peter

over 5 years ago

0 Sadanori Kato over 5 years ago

Guru 36490 points

Hi Peter-san,

Please dump the registers for the secondary ADC biquad filter setting the frequency response with PPC2.

Best regards,
Kato

0 Peter Scheiwiller over 5 years ago in reply to Sadanori Kato

Prodigy 30 points

Thanks for the quick reply. Can I download this from the TI website?

Thanks

Peter

0 Sadanori Kato over 5 years ago in reply to Peter Scheiwiller

Guru 36490 points

Hi Peter-san,

Could you please request PPC2 accessing the following link after logging in with myTI ?

PurePath Console Graphical Development Suite
http://www.ti.com/tool/PUREPATHCONSOLE

Best regards,
Kato

0 Diego Melendez over 5 years ago in reply to Sadanori Kato

TI__Guru 57800 points

Thanks for your help Kato-san,

Peter, as Kato-san mentioned, please request PPC access to download the tool; I'll make sure you get the approval soon.

Best Regards,

-Diego Meléndez López
Audio Applications Engineer

0 Peter Scheiwiller over 5 years ago in reply to Diego Melendez

Prodigy 30 points

OK thanks. Have downloaded now

Audio

Audio forum

PCM1864: Co-efficient calculator for Aux-ADC HP and LP filters