User's Manual

supplies. The main components of the PMU are as follows:
■ A linear regulator (SREG) which converts the host IO supply to a 1.2V supply for
some small control blocks which are turned on when CHIP_PWD_L is de-asserted.
■ A linear regulator (DREG) which converts the 1.8V input to 1.2V for the bulk of
AR6003X core digital circuitry.
■ A linear regulator (AREG) which converts the 1.8V input to 1.2V for the AR6003X
core analog circuitry.
3.2 Power Transition Diagram
The WM-AN-AT-01 provides integrated power management and control functions and
extremely low power operation for maximum battery life across all operational states
by:
■ Gating clocks for logic when not needed
■ Shutting down unneeded high speed clock sources
■ Reducing voltage levels to specific blocks in some states
3.3 Operational Description
The WM-AN-AT-01 is designed for installation into mobile or fixed devices such as
data terminals which typically operate at distances greater than 20 cm from the human
body.
4. Others
1) This device is intended for OEM integrators only.
2) OEM integrators is responsible for ensuring that the end-user has no manual
instructions to remove or install module.
3) Separate approval is required for all other operating configurations, including
portable configurations with respect to Part 2.1093 and different antenna
configurations.
4) Please see the full Grant of Equipment document for other restrictions.