I'm using a Microchip MCP3201-C ADC (analog to digital converter) in an audio sampling circuit. The datasheet says that the maximum SPI clock frequency for communicating with the IC is 1.6MHz at 5V operating voltage. For my application, I'd like to communicate faster at 2MHz. I am wondering what the ramifications of exceeding the datasheet's clock frequency might be.
Can using a 2MHz SPI clock speed possibly damage the IC?
Or would exceeding the 1.6MHz speed simply cause the analog sampling to be less accurate? I can certainly understand that the datasheet's stated INL and DNL performance characteristics would not be guaranteed if I overclock the communication. But accuracy isn't necessarily critical for my application, and I can't hear any audio sampling quality difference between SPI speeds of 1MHz, 2MHz, or even 8MHz.
In short, if I'm satisfied with the performance, is there any danger that I can damage the IC by using a 2MHz SPI clock speed? Thanks for any insight anyone might have!