Power Distribution Diagram - Nokia NSE-6 SERIES Service Manual

PAMS
Technical Documentation

Power Distribution Diagram

The power supply is based on the ASIC circuit CCONT. The chip consists
of regulators and control circuits providing functions like power up, reset
and watchdog. External buffering is required to provide more current on
some blocks.
The MCU and the CCONT circuits control charging together, detection
being carried out by the CCONT and higher level intelligent control by the
MCU. The MCU measures battery voltage by means of the COBBA via
DSP. Charger voltage and the temperature and size of the battery are fol-
lowed via the MCU internal ADC.
Detailed power distribution diagrams are given in Baseband blocks and
RF blocks documents.
Original 08/98
NSE–6
System Module
Page 3 – 47