PAMS Technical Documentation
Disassembly & Troubleshooting
NSB-7
Issue 1 06/00
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Nokia Mobile Phones Ltd.
Page 27
Vbb
= 2.7V - 2.87V
Vcore
= 1.3V - 2.65V
Vcobba
= 2,67V - 2.85V
Vref
= 1.48V - 1.523V
Vbat
= 3.11V - 4.2V
VXO
= 2,67V - 2.85V
VRX
= 2,67V - 2.85V
VTX
= 2,67V - 2.85V
Vsyn1
= 2,67V - 2.85V
Vsyn2
= 2,67V - 2.85V
Power up sequence test:
Cconts digital parts keep MAD in reset by keeping PURX down for a delay of 62ms.
Here is shown the start up sequence picture.
Ch1 = Vbb
Ch2 = VXO
Ch3 = SleepClk