Sleepclk (Digital); Sleepclk (Analog) - Nokia RH-27 Series Technical Documentation Manual

RH-27
Troubleshooting - Baseband

SleepCLK (Digital)

The UEM provides a 32kHz sleep clock for internal use and to UPP, where it is used for
the sleep mode timing.

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.
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©2003 Nokia Corporation
CCS Technical Documentation
Confidential Issue 1 11/2003