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Flash LED interface and electrical characteristics
Table 28 Flash LED interface connections
Signal name
From
To
Description
GPIO28
D4800
N1471
Indicator mode enable
signal
ARMIO4
D4800
N1471, V1472
Flash mode enable test
signal (only test use)
VBAT
Battery
N1471
Battery nominal voltage
STROBE
Camera
N1471, V1472
Flash light enable signal
from back camera
Table 29 Flash LED interface electrical characteristics
Description
Parameter
Min
Typ
Max
Unit
GPIO28
GPIO output
1.72
1.8
1.92
V
ARMIO4
GPIO output
1.72
1.8
1.92
V
STROBE
Strobe signal
output
2
-
2.5
V
Slider switch electrical characteristics
Signal name
From
To
Low value
High value
Description
GPIO53
Application
processor
S5202
160 mV
1.8 V
Slider switch
cover status
signal.
Back-up battery interface connections and electrical characteristics
Table 30 Back-up battery connections
Pin name
I/O
Connection
Notes
L2207, VBack
->
N2200, VBack
Back-up battery G2200 is connected to N2200
via coil
Table 31 Back-up battery electrical characteristics
Description
Parameter
Min
Typ
Max
Unit
Back-Up
Battery
Voltage
Vback
0
2.5
2.7
V
RM-91; RM-92
System Module
Nokia Customer Care
Issue 1
COMPANY CONFIDENTIAL
Page 9 –41
Copyright © 2006 Nokia. All rights reserved.