Lower limit of AD5761 spi communication frequency

Hi, 

Ideally, in SPI, there is no lower limit as long as the minimum timing standards are met. I personally have used SPI in 1KHz clock freq. Is there a special requirement in your application where you'll use a very slow clock speed? 

Best regards,

Ian

Hi, 

Ideally, in SPI, there is no lower limit as long as the minimum timing standards are met. I personally have used SPI in 1KHz clock freq. Is there a special requirement in your application where you'll use a very slow clock speed? 

Best regards,

Ian

Think you very much for your reply. I would like to use optocoupler (10Mbit/s 6n137) to isolate spi.  And I think maybe i should set sclk to 1MHz, which is 1/10 of 10M.

Best regards,

Taining Zhang