Hello,I want to communicate with DAC8004 EVB with SPI protocol.
What is the proper baudrate USED to communicate SPI commands?
I could not find such data in the datasheet below?
Thanks.

https://www.ti.com/lit/ds/symlink/d...L6dIEZw2Dtg9IjH26pmPptF13uehR3vgpxwaxRZ1oE0Pc

 

The maximum baud rates is the reciprocal of the minimum SCK cycle time (first line of page 8).
You can use any baud rate between zero and the maximum. Because SPI is a synchronous system, the baud rate need not be constant.

 

Hello,I want to communicate with DAC8004 EVB with SPI protocol.
What is the proper baudrate USED to communicate SPI commands?
I could not find such data in the datasheet below?
Thanks.

...

Clock rates for SPI peripherals are not fixed. They can be anything up to some maximum frequency. The clock pulses don't even have to be uniform, so that pulses of different length are just fine.

Note that minimums are specified for the clock pulses, but no maximums.

 

How can i know the maximal clock rate?
Thanks.

 

How can i know the maximal clock rate?
Thanks.

The maximum clock rate is the reciprocal of the minimum SCK cycle time (first line of page 8).

 

How can i know the maximal clock rate?
Thanks.

25MHz at VDD equal or less than 4.5V, 50MHz at greater than 4.5V, as per datasheet SCLK cycle time.

 

Not forgetting that to achieve the maximum speed, the clock must be a squarewave with 50% duty cycle.

 

25MHz at VDD equal or less than 4.5V, 50MHz at greater than 4.5V, as per datasheet SCLK cycle time.

Minimum high and low times give you the minimum for one period. The reciprocal of the minimum period is the maximum frequency. Certainly, you must be aware of that.

 

Hello,given the following diagrm from the datasheet I am not sure regarding clock data relations.
What is the ,clock polarity,clock phase,MSB first or not?
Thanks.

 

The falling edge of the clock is in the middle of the data bit. DB31 stands for Data Bit 31 which is the MSB and DB0 stands for Data bit 0 which is the LSB. tsu1 is the minimum setup time before the falling edge and th1 is the minimum hold time after the falling edge.