Hi,Team:
According to DATASHEET. I plan to design a application for my project.
After Power UP, I configure DAC: 1.LDAC pin active for DAC-B and DAC-A 2. Enable internal reference and reset DACs to gain = 2.
After the configuration registers were done, I start to SEND out samples to each channel for the DAC.
My plan is that : 1.first send out samples for channel A. (Command = 000, Address = 000.) 2.then send out samples for channel B. (Command = 000, Address = 001.)
3.Finally, send out a Low pulse for LDAC pin.
The DAC genereted the desired analog signal as expected.
But I also carry out a test: 1.first send out samples for channel A (Command = 000, Address = 000.) 2.then send out samples for channel B. (Command = 000, Address = 001.) 3 .Never send out a low pulse for LDAC pin ,LDAC pin keep high level .
It is a big surprise that the DAC can also genereted the desired analog signal .
In my opinion , LDAC never update DAC and DAC will keep still on a known level.
Is there any wrong about my knowledge on DAC8562? Or there is a misunderstand on the datasheet?