TAS5754MDCAEVM: connected with PPCMB

Emma Yanakiev11

Hi,

I've connected a PPCMB (AIP006G) with a TAS5754EVM, and am attempting to look at the I2S clock and data signals. I'm streaming audio input via USB, and interfacing with the board via PPC2 GUI. The audio is successfully input and output, but no signal is coming up when I probe the MCLK/BCLK/DIN/DOUT pins on the far left side of the board (photo attached). ml

The documentation on the EVM has a different version of the PPCMB than I do, so I want to see if there's a reason the signal is not coming through these pins.

Thanks,

Emma

over 7 years ago

0 Andy Liu (BMS) over 7 years ago

TI__Guru 52115 points

Hi Emma,

The major purpose of the J4 connector is to provide external I2S signals. These headers cannot be used to monitor the clocks and data of USB audio input. Take a look at the schematic of PPCMB (Rev. G) below.

AIP006G_Schematic.pdf

Andy

Audio

Audio forum

TAS5754MDCAEVM: connected with PPCMB