SX8722I070LF SEMTECH [Semtech Corporation], SX8722I070LF Datasheet - Page 100

• Manufacturer Part Number: SX8722I070LF
• Description: High gain acquisition for sensor interface
• Manufacturer: SEMTECH [Semtech Corporation]

15. Power modes
SX8722 has 3 operating modes:
15.1. Power modes transitions
Start-up from shutdown:
Start-up from sleep:
Sleep sequence:
Shutdown sequence:
The timing of the transition states depends mainly on the Xtal presence, the EEPROM presence and if the transition is
caused by an I2C command or by a pin signal (SLEEP, SHUT, RESET).
ACS - Revision 4.2
©2008 Semtech Corp.
ADVANCED COMMUNICATIONS & SENSING
active mode
sleep mode
shutdown mode
Initializes the SX8722
Load EEPROM if present
Restores EEPROM configuration and set the SX8722
Restores the RC active value
Enables VLD
Restores SX8722 configuration saved in RAM
Waits for I2C STOP sequence
Stops the ADC
Disable VLD
Bias current off
Set the clock to RC minimum value or to Xtal if present
Waits for I2C STOP sequence
Stops the ADC
Disable VLD
Bias current off
Stops the SX8722
October 2008
Page 100
High gain acquisition for sensor interface
DATASHEET
www.semtech.com
SX8722