any idea on how to increase the delay time on ADAU1701/1702 SigmaDSPs?
The internal RAM is useful for I think approx. 5ms Delay @ 48kHz.
If I want to have up to 1 second of delay time how would I realize this?
As I can see there is no external memory interface to connect a SDRAM, SRAM, Flash or EPROM etc.
Only possibility would be a SPI memory connected on the SPI interface.
But I doubt that the data exchange is fast enough to have 3 samples read/write in a 48kHz frame.
I roughly came to a required clock of 16MHz...?