Hi,
The AD5421 is configured for upscale alarm current value of 22.8mA buy connecting ALARM_CURRNT_DIRECTION to DVdd.
Now, we have shorted the SPI clock to ground to simulate the SPI fault.SDIN, SYNC are as usual, they are switching. Surprisingly
the DAC is not outputting the upscale alarm current value of 22.8mA!! teh output stays at the previous set value.
But when, we short SYNC to ground, the DAC is outputting upscale alarm current value of 22.8mA.
Look forward for your valuable inputs.
Thank you,
Akunhana.