Sleepclk (Analog); Charging Operation; Battery - Nokia RH-44 Series Troubleshooting - Bb

CCS Technical Documentation
the sleep mode timing. (See next figure.)

SLEEPClk (Analog)

When the system enters sleep mode or power off mode, the external 32KHz crystal pro-
vides a reference to the UEM RTC circuit to turn on the phone during power off or sleep
mode. (See next figure.)

Charging operation

Battery

A 1000 mAh Lithium-Ion cell battery is used. Reading a resistor inside the battery pack
Issue 1 04/2003
Figure 11: 32kHz Digital output from UEM
Figure 12: 32kHz analog waveform at 32KHz crystal input
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