Baseband Description; System Module Block Diagram; Baseband Functional Description; Absolute Maximum Ratings - Nokia RM-313 Service Manual

RM-313
System Module

Baseband description

System module block diagram

The device consists of two different main modules: transceiver and UI/slide module. Transceiver board
consists of baseband and RF components. UI/slide module consists of UI-FPC and keys.

Baseband functional description

Digital baseband consists of an ISA (Intelligent Software Architecture) based modem and symbian based
application sections. The modem functionality is in RAPIDOYawe, and the application processor acts as a
platform for Symbian applications.
The modem section consists of a RAPIDOYawe ASIC with combo memory (128Mbit NOR Flash + 128Mbit SDRAM)
as the core. RAPIDOYawe supports WCDMA/HSDPA and GSM protocols. RAPIDOYawe operates with the 38.4MHz
system clock, which comes from VCTCXO, and provides 19.2MHz system clock to application processor.
The application section includes an application processor ASIC OMAP2420 with combo memory (512Mb DDR
+ 2G NAND) as the core. Combo memory is soldered Package-On-Package (POP) on top of OMAP2420.

Absolute maximum ratings

Signal
Battery voltage (idle)
Battery voltage (Call)
Charger input voltage
Back-Up supply voltage
Issue 1
Min Nom
-0.3
+3.2
-0.3
0 2.5
COMPANY CONFIDENTIAL
Copyright © 2007 Nokia. All rights reserved.
Uni
Max
t
+4.5 V Battery voltage maximum value is
specified during charging is active
+4.3 V Battery voltage maximum value is
specified during charging is active
+20 V
2.6 V Maximum capacity of the backup
power supply assumed to be 4 µAh.
Notes
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