I am currently working on a project where a DSP and ADC are required.
The potential candidates are the TI TMS320C5532 and Analog Devices AD1974, whose outputs interface to the TMS320C5532 I2S peripherals.
However, we are concerned about the TMS320C5532 I2S clock jitter. The AD1974 data sheet mentions that the ADC clocks should not be pass through a DSP before being applied to the AD1974. We are in the process of characterizing the TMS320C5532 I2S clocks.
Do you have any recommendations on ensuring that the I2S derived clocks’ jitter is kept to a minimum? Should we use jitter cleaners before applying to the ADC?