Baseband Technical Specifications; External Interfaces; Aci Interface Electrical Characteristics - Nokia RM-42 Service Manual

RM-42
System Module
Pin #/ Signal Signal
name description
3/ ACI ACI
4/ Vout DC out
9 / XMIC N Audio in
10 / XMIC P Audio in
11 / HEAR N Audio out
12 / HEAR P Audio out
13 / HEAR R N Audio out
14 / HEAR R P Audio out

Baseband technical specifications

External interfaces

Name of Connection
USB
Charger
Headset
SIM
RS MMC
Battery connector

ACI interface electrical characteristics

Description Parameter
Accessory detection
Headset
detection
threshold
Headset
detection
hysteresis
9241872 (Issue 1)
Spectral range
1kbits/s
DC
300-8k
300-8k
20-20k
20-20k
20-20k
20-20k
Min Typ
1.75 1.9
25
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Voltage/ Max or nominal
Current levels serial
impedance
Digital 0 / 47Ω
2.5-2.78V
2.78V 70 mA 100mΩ (PWB+
conn.)
2.5V 90mA
1Vpp &
2.5-2.78VDC
1Vpp &
2.5-2.78VDC
1Vpp 10Ω
1Vpp 10Ω
1Vpp 10Ω
1Vpp 10Ω
Connector reference
X2001
X2000
X2001
X2700
X5200
X2070
Max
2.05
Nokia Customer Care
Notes
Insertion &
removal
detection
200mW
Not conn. in
mono
Not conn. in
mono
Unit Notes
V Retu specific
mV
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