NSW-6
System Module SE2
PAMS Technical Documentation
Page 8
Issue 1 12/99
Nokia Mobile Phones Ltd.
Battery contact signals
Pin
Line
Symbol
Parameter
Mini-
mum
Typical
/ Nomi-
nal
Maxi-
mum
Unit / Notes
1
BVOLT
Battery voltage
3.0
3.6
5.3
V/ Maximum voltage in idle
mode with a charger con-
nected
2
BSI
Input voltage
0
2.85
V/ Battery size indication
Phone has 100k pull up re-
sistor
Battery indication
i t
18
1%
kohm/ Ni battery
resistor
20
22
24
kohm/ service battery
27
51
kohm/ 4.1V Li battery
68
91
kohm/ 4.2V Li battery
3
BTEMP
Input voltage
Input voltage
0
2.1
1.4
3
V/ Battery temp. indication
V/ Phone power up (pulse)
4
BGND
0
0
V
Contacts Description
The transceiver electronics consist of the Radio Module ie. RF + System
blocks, the keyboard PCB, the display module and audio components.
The keypad and the display module are connected to the Radio Module
with connectors. System blocks and RF blocks are interconnected with
PCB wiring. The Transceiver is connected to accessories via charger con-
nector (includes jack and plates), and headset connector.
The System blocks provide the MCU, DSP and Logic control functions in
MAD ASIC, external memories, audio processing and RF control hard-
ware in COBBA ASIC. Power supply circuitry CCONT ASIC delivers oper-
ating voltages both for the System and the RF blocks.
The RF block is designed for a handportable phone which operates in the
TDMA system. The purpose of the RF block is to receive and demodulate
the radio frequency signal from the base station and to transmit a modu-
lated RF signal to the base station