Datasheet

Data Sheet AD9523
Rev. C | Page 27 of 60
Reset to Settings in EEPROM when EEPROM Pin = 0 via the
Serial Port
The serial port control register allows the chip to be reset to settings
in EEPROM when the EEPROM pin = 1 via Register 0xB02, Bit 1.
This bit is self-clearing. This bit does not have any effect when the
EEPROM pin = 0. It takes ~40 ms for the outputs to begin toggling
after the Soft_EEPROM register is cleared.
POWER-DOWN MODE
Chip Power-Down via
PD
Place the AD9523 into a power-down mode by pulling the
PD
pin
low. Power-down turns off most of the functions and currents
inside the AD9523. The chip remains in this power-down state
until
PD
is returned to a logic high state. When taken out of power-
down mode, the AD9523 returns to the settings programmed into
its registers prior to the power-down, unless the registers are
changed by new programming while the
PD
pin is held low.