The DACs are where the volume control will be done. They sit on an I2C bus and receive the commands from there (along with much of their setup routine). The problem is the DACs only can listen on one of two possible addresses (set by grounding a pin). So having 16 of them poses a problem.
Enter the, NXP I2C hub, that'll let me create multiple, separate buses behind the hub, and be able to address each channel individually. I will still use the address selection in the DAC, so I only have to create 8 buses, instead of 16.
No comments:
Post a Comment