The ADAU1772 and ADAU1777.
When we don't use the self boot, can we connect the SELFBOOT pin to DGND without resister?
Or should we use a resistor?
I thought that either is OK, but please let me confirm.
Several Audio codec and Sigma DSP products support the self boot, and each device has the SELFBOOT pin.
I checked descriptions about the SELFBOOT pins and found below.
Pull this pin up to IOVDD at power-up to enable the self-boot mode.
Connect this pin to IOVDD at power-up to enable the self boot mode. Otherwise, set this pin to DGND at startup.
This pin can be tied directly to the control voltage or pulled up/down with a resistor.
This pin can be connected to IOVDD or to ground either directly or pulled up or down with a 1.0 kΩ or larger resistor.
[edited by: lallison at 9:08 PM (GMT -4) on 8 Aug 2022]