Pin #/ Signal
name
Signal
description
Spectral range Voltage/
Current levels
Max or nominal
serial
impedance
Notes
3/ ACI
ACI
1kbits/s
Digital 0 /
47Ω
Insertion &
removal
detection
2.5-2.78V
4/ Vout
DC out
DC
2.78V 70 mA
100mΩ (PWB+
conn.)
200mW
2.5V 90mA
9 / XMIC N
Audio in
300-8k
1Vpp &
2.5-2.78VDC
10 / XMIC P
Audio in
300-8k
1Vpp &
2.5-2.78VDC
11 / HEAR N
Audio out
20-20k
1Vpp
10Ω
12 / HEAR P
Audio out
20-20k
1Vpp
10Ω
13 / HEAR R N
Audio out
20-20k
1Vpp
10Ω
Not conn. in
mono
14 / HEAR R P
Audio out
20-20k
1Vpp
10Ω
Not conn. in
mono
Baseband technical specifications
External interfaces
Name of Connection
Connector reference
USB
X2001
Charger
X2000
Headset
X2001
SIM
X2700
RS MMC
X5200
Battery connector
X2070
ACI interface electrical characteristics
Description
Parameter
Min
Typ
Max
Unit
Notes
Accessory detection
Headset
detection
threshold
1.75
1.9
2.05
V
Retu specific
Headset
detection
hysteresis
25
mV
RM-42
System Module
Nokia Customer Care
9241872 (Issue 1)
Company Confidential
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