Nokia 3390, 3390b, 3395 服务手册
NPB-1NB
System Module
PAMS Technical Documentation
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Functional Description ................................................................................................... 5
Modes of Operation .....................................................................................................5
Baseband Module........................................................................................................... 6
Technical Summary .....................................................................................................6Technical Specifications ..............................................................................................8
DC Characteristics..................................................................................................... 8
External Signals and Connections ...............................................................................8
Battery Connector ..................................................................................................... 8DC (Charger) Connector ........................................................................................... 9Service (Flash/Test) Connector ............................................................................... 10SIM Card Connector ............................................................................................... 10
Power Distribution .....................................................................................................11 Battery Charging .......................................................................................................13
Startup Charging ..................................................................................................... 14Battery Over-Voltage Protection............................................................................. 14Battery Removal During Charging ......................................................................... 15PWM ....................................................................................................................... 16Battery Identification............................................................................................... 16Battery Temperature................................................................................................ 18Supply Voltage Regulators...................................................................................... 19Switched Mode Power Supply VSIM ..................................................................... 21Power Up and Power Down .................................................................................... 22Power Up with a Charger ........................................................................................ 23Power Up with Power Switch (PWRONX) ............................................................ 24Power Up by IBI ..................................................................................................... 24Power Down ............................................................................................................ 24
Modes of Operation ...................................................................................................25
Acting Dead............................................................................................................. 25Active Mode ............................................................................................................ 25Sleep Mode.............................................................................................................. 25Charging .................................................................................................................. 25Watchdog ................................................................................................................ 26
Audio Control ............................................................................................................26
PCM Serial Interface ............................................................................................... 26Digital Control......................................................................................................... 27
Memories ...................................................................................................................28
MAD memory configuration................................................................................... 28Memory ................................................................................................................... 28Program and Data Memory ..................................................................................... 28Work Memory ......................................................................................................... 28MCU Memory Requirements.................................................................................. 29MCU Memory Map................................................................................................. 29Flash Programming ................................................................................................. 29 COBBA GJP .......................................................................................................... 31Real time clock........................................................................................................ 31
User Interface (UI)..................................................................................................... 31
LCD Module ...........................................................................................................32