Battery Connector - Nokia RM-291 Service Manual

RM-291
System module
Pin Name
4 DATA
5 NC
6 GND
VSIM specified in regulator section in this document

Battery connector

Internal, user-changeable batteries. Semi-fixed. Types: Li-Ion, NiMH. A four-terminal (VBATT, GND, BSI, BTEMP)
battery interface is used. The battery type and size are defined in the next chapter.
Signal From
GND Global
VBAT
Issue 1
Parameter Min
1.8V Voh 0.9xVSI
M
1.8V Vol 0
3V Voh 0.9xVSI
M
3V Vol 0
1.8V Vih 0.7xVSI
M
1.8V Vil 0
3V Vil 0.7xVSI
M
3V Vil 0
GND 0
Figure 128 SIM interface block diagram
To Min
Batt (-)
Batt (+) 3.1
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Typ Max
VSIM
0.15xVSIM
VSIM
0.15xVSIM
VSIM
0.15xVSIM
VSIM
0.15xVSIM
0
Table 16 Battery IF
Nom Max Condi-tion
5.1
Nokia Customer Care
Unit Notes
V SIM data (output)
V SIM data (input)
Trise/Tfall max
1us
Not connected
V Ground
Note
Global GND
Battery Voltage
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