Nokia 9210i Servicehandbuch
PAMS
Technical Documentation
RAE-5
3. RF+System Module KL8
Page 3 – 14
Issue 1 04/02
Table 3.
Electrical characteristics of the system connector (X450) signals (continued)
Notes
Unit
Max
Typ
Min
Parameter
Name
Pin
6
XMIC
Input AC impedance
2.2
k
Ω
Max. input signal
1
Vpp
Output DC level
1.47
1.55
V
Accessory muted (not for headset)
Output DC level
2.5
2.8
V
Accessory unmuted
Bias current
100
600
µ
A
7
MBUS
Output LOW
0
0.22*VBB
V
Open drain output
Output LOW current
2
mA
Pullup resistance
4.7
k
Ω
to VBB
Series resistance
270
Ω
Input LOW
0
0.3*VBB
V
Input HIGH
0.7*VBB
VBB
V
8
DCE_TX
Input LOW
0
0.3*VBB
V
To AccRxData
Input HIGH
0.7*VBB
VBB
V
220k
Ω
Pullup to VBB in KL8
Series resistance
270
Ω
9
DCE_RX
Output LOW
0
0.22*VBB
V
From AccTxData
Output HIGH
0.8*VBB
VBB
V
47k
Ω
Pullup to VBB in KL8
Output current
4
mA
Series resistance
270
Ω
10
DCE_DTR
Input LOW
0
0.3*VBB
V
Data Terminal Ready input
Input HIGH
0.7*VBB
VBB
V
Internal pullup max. 140
m
A
Series resistance
270
Ω
Accessory power output
11
GND
0
0
V
Supply ground
12
RF_GND
13
RF_INTER-
NAL
To internal antenna
14
RF_COM-
MON
From RF
15
RF_GND
Battery Connector
Table 4. Battery Connector (X100) Electrical Specifications
Pin
Name
Min
Typ
Max
Unit
Notes
1
VBATT
3.0
3.6
4.2
V
Battery voltage
4.8
V
Maximum voltage with charger
2
BSI
0
2.8
V
Battery size indication
System HW has 100k
W
5% pull up resistor.
Battery removal detection (shorter contact)
(Threshold is 2.4V@VBB=2.8V)
22
1%
k
W
Service battery pull down value
68
5%
k
W
4.2V Li–Ion battery pull down value