Dear Sir /Madam,
Can we use your ADR02 as VDD2 of ADuM1300 due CN0064 reference circuit?
Our customer choiced your ADuM1300 and AD5324,so he is studying now about VDD2.
Your CN0064 show to use ADR02 Vref as power device.
Bur your DAC on CN0064 is AD5562.
Idd when normal mode are
AD5662=150uA, bur AD5324=600uA.
Otherwise should we put the another small LDO for AD5324?
600uA is not good for REFIN AD5324, I think.
Please give me your good advice.
And CN0064 show using LC filter also.
We should put the capacitor on the most closest of AD5324, correct?
The ADR02 could deliver up to 10mA.. and the most power hungry part is the isolator which basically depends on your maximum baud rate (remember that the baud rate is 2*CLK).
2- where us the LC tank?, If you refer to the 22uH inductor is basically to isolate noise between isocoupler and DAC... you can leave it...
Thank you for your prompt reply!
>...... depends on your maximum baud rate
Do you have the current data when ADuM1300 drive with the max-baud-rate?
The ADuM1300 supply current depends on the supply voltage on both sides of the part as well as data throughput. What maximum baud rate must be supported, and what are the supply voltages?
Thank you for your follow up, DaveC.
Ok, I will know this to customer, and putting the enough power device there also.