User Guide

Figure 54 RM-198 baseband functional block diagram

Absolute maximum ratings

Signal Min Nom Max

Uni

Notes

Battery voltage (idle) -0.3 +4.5 V Battery voltage maximum value is

specified during charging is active

Battery voltage (Call) +4.3 V Battery voltage maximum value is

specified during charging is active

Charger input voltage -0.3 +16V V

Back-Up supply voltage 0 2.5 2.7 V Maximum capacity of the backup

power supply assumed to be 4 µAh.

Phone modes of operation

Mode Description

NO_SUPPLY (dead) mode means that the main battery is not present or its voltage is too low (below

EM ASIC (N2200) master reset threshold) and that the back-up battery voltage is too

low.

BACK_UP The main battery is not present or its voltage is too low but back-up battery voltage is

adequate and the 32kHz oscillator is running (RTC is on).

RM-198

System Module Nokia Customer Care

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