TLV320AIC3111 How to set PLL parameters

na na78

Guru 16770 points

Hi,

We want to make DAC_fs = 48KHz from MCLK (24.576MHz), so need to decide PLL parameters.

How to set PLLP/PLLR/PLLJ/PLLD and MDAC/NDAC/DOSR?

Can we use any utility tools to generate configuration file?

Regards

0 Dominik Hartl11 over 10 years ago

You do not need the PLL if you have a 24.576MHz MCLK for a sampling rate of 48kHz.

Set:
DOSR = 128
MDAC = 2
NDAC = 2

FS = 24576000 / (2 * 2 * 128) = 48000

You can also use the clock calculation tool from the AIC3111 GUI (see product/EVM folder on ti.com http://www.ti.com/lit/zip/slac289)

0 na na78 over 10 years ago in reply to Dominik Hartl11

Guru 16770 points

Hi Hartl

Thank you for reply.

I did download Clock calculation tool but it can not be extracted.
Does this installer support Win7 64 bit?

regards,

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