I thought I'd share this little bit of wisdom, because I haven't found any other solution. I was looking to _slowly_ generate random numbers on an ADAU1761:
The noise source is converted to DC and sampled at regular intervals by the hold block (which is controlled by the pulse generator). The duty cycle must be adjusted with regards to pulse frequency. The multiply converts the output to the range and date type necessary.
Any other ideas and input are welcome!
Best regards, Roman