Nokia N72

Pin #/ Signal
name
Signal
description
Spectral range Voltage/
Current levels
Max or
nominal serial
impedance
Notes
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
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 N2200
specific
Headset
detection
hysteresis
25 mV
Headset
detection
pull ups
1 2 4 uA
After Mbus is switched to HeadDet
High-level
input
voltage.
V
IH
1.9 x V
DDS
2.5/2.98 3.0 V N2200
specific
Low-level
input
voltage
V
IL
0 0.2 0.7 x V
DDS
V
RM-180
System Module Nokia Customer Care
Issue 1 COMPANY CONFIDENTIAL Page 9 –33
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